Choosing Between SN1/SN2/E1/E2 Mechanisms

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  • Опубликовано: 25 ноя 2024

Комментарии • 937

  • @ProfessorDaveExplains
    @ProfessorDaveExplains  2 месяца назад +6

    Get exam-ready with my 12 OChem practice exams available only on Chemmunity: chemmunity.info/dave
    Join Chemmunity today to get access to 200+ instructional videos, practice problems, and more exams!

  • @JacksonBenete
    @JacksonBenete 8 лет назад +2063

    How can 18 minutes of explanation be more helpful and clear than one entire semester of my teacher explanation?
    Thanks for this lesson Dave.

  • @TheBdonny
    @TheBdonny 9 лет назад +2104

    *Throws tuition at screen*

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  9 лет назад +317

      +The Bdonny this is my favorite.

    • @mirandaacosta876
      @mirandaacosta876 7 лет назад +45

      Professor Dave Explains I love your hairy chest.

    • @gordono.abongo4938
      @gordono.abongo4938 7 лет назад +74

      Some people are seeing hairy chest and not sn1.....!

    • @Clawalkers
      @Clawalkers 7 лет назад +49

      I totally agree with this. Summer tuition for Organic is over $900, when I can sit on RUclips and learn it for free from someone who actually uses teaching methods. By far my favorite Organic Chemistry tutors. Keep up the fabulous work

    • @shihtzutoy1
      @shihtzutoy1 5 лет назад +7

      LOL, Thank you for the laugh as I make my way through SN1/SN2/E1/E2 hell.

  • @Michi48476
    @Michi48476 8 лет назад +651

    hey man, to be honest in this whole chapter organic chemistry, i have learned and understood more than in a whole semester of university :)
    thank you so much, you're saving alot of asses in germany

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  8 лет назад +130

      happy to help my german friends!

    • @manavshah6811
      @manavshah6811 8 лет назад +15

      +Professor Dave Explains you're awesome man! thanks a lot. thanks from India!

    • @janalasz
      @janalasz 8 лет назад +16

      Professor Dave Explains you definitely do! I've an exam tomorrow and my teacher totally failed so we had to learn it on our own and you've helped me so much! 😊 thank you so much, greetings from Germany

    • @NoviProleterijat
      @NoviProleterijat 6 лет назад +1

      Can say the same for sweden, I think my whole class is watching your videos

    • @neelamtyagi475
      @neelamtyagi475 5 лет назад +7

      You guys learn this in universities?
      Here in India we studied this in 11 or 12th class. It were in one of our chapters of organic chemistry...

  • @asshwinm
    @asshwinm 8 лет назад +385

    I thought of killing my teachers but your videos spared their life.
    So you saved several lives man. thanks for the lecture

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  8 лет назад +246

      i will add medical professional to my list of accolades!

    • @issackgabow4223
      @issackgabow4223 7 лет назад +2

      +Professor Dave Explains Hhhh funny

    • @nejatahmed1584
      @nejatahmed1584 7 лет назад +3

      Professor Dave Explains
      Stay blessed 🤗

    • @zainabmmanywa2956
      @zainabmmanywa2956 4 года назад +1

      I found organic chemistry interesting after this video...... greetings from Tanzania professor😉😉

    • @zainabmmanywa2956
      @zainabmmanywa2956 4 года назад

      The idea of killing your teacher seems funny😂😂😂😂what about creating a what's app group to discuss organic,,,my what's app number +255621790346 incase you decided to join me....

  • @britneytheweightliftinghip4776
    @britneytheweightliftinghip4776 4 года назад +293

    Math, chem, astronomy, Italian, bio, and anatomy among other things. You've got a helluva melon on your shoulders. Thank you so much for saving my grades, especially during a time when in-person classes aren't a thing!

    • @aftermath7
      @aftermath7 2 года назад +1

      Ayo you're Italian???

    • @Neet153
      @Neet153 2 года назад

      So nice . you are from

    • @놈무현
      @놈무현 4 месяца назад +1

      how the f professor Dave knows every single subjects??

    • @Manabu-n4s
      @Manabu-n4s 3 месяца назад

      @@놈무현 He's the GOAT for a reason

  • @thetonecooks2387
    @thetonecooks2387 8 лет назад +13

    man this is so comfortable to watch. It´s like smoking pot but instead of smoking you study and instead of pot it´s chemistry.

  • @avantika216
    @avantika216 10 месяцев назад +8

    Watching this after 9 years and i cannot believe how crisp and crystal clear youve made it gah damn

  • @elsamors1472
    @elsamors1472 5 лет назад +731

    "Mom, why is my sister's name Rose?"
    "Because your father loves roses"
    "Thanks mom"
    "No problem, Professor Dave"

  • @vaibhavgupta8212
    @vaibhavgupta8212 9 лет назад +121

    twenty minutes and i am an expert in sn1 sn2 e1 e2
    amazing
    hats off to you
    keep up the good work
    thank you very much!!!!!!!!!

  • @MedicFromTF2_REAL
    @MedicFromTF2_REAL 5 лет назад +24

    I literally watched this video right before my organic chemistry exam and it saved my life, thank you Dave!!

    • @bigheadface
      @bigheadface 3 года назад

      My exam is tomorrow. I finally understand the concept now thanks to this video. Here's hoping it helps.

    • @skanforward5190
      @skanforward5190 Год назад

      me too xD the night before

  • @magexcloudy
    @magexcloudy 9 лет назад +21

    My friend i dont know how to explain this to you, but you're the manliest man of science

  • @Gizzie15
    @Gizzie15 5 лет назад +142

    A memory trick for the temperatures:
    Think of "sub-zero temperatures" to remember that substitution occurs at cold temperatures

  • @Siliziumwesen
    @Siliziumwesen 9 лет назад +50

    your videos are better to understand than the videos in native language (german). Thanks for your help!

    • @Hiitsmyhandle
      @Hiitsmyhandle 7 лет назад +6

      No one appreciates German chemistry words, they're ungerade :P

    • @jortk7598
      @jortk7598 4 года назад

      Entgegen und zusammen! Scheisse Deutschers

  • @eemanbintesaqib3148
    @eemanbintesaqib3148 4 года назад +20

    I can't even begin to tell you how much you have cleared up my concepts.thank you so much

  • @mysweetestpotato
    @mysweetestpotato 8 лет назад +7

    I've watched several of these series now on YT, and I must say that this one has been the most helpful in understanding these mechanisms! Thank you, professor Dave! You rock!

  • @rishishukla2241
    @rishishukla2241 Год назад +1

    THANK YOU FOR THIS VIDEO! All my friends are so confused on how to chose between these reactions, and after watching this video, I've become so good at it that they always come ask me to help. Can't believe that an american teacher has such amazing videos of indian competitive exam topics.

  • @ayushyadav5164
    @ayushyadav5164 2 года назад +5

    You are such a great teacher. I understood more in these 18 mins than in 3 hours lecture in my classes. Thank you so much!!!

  • @salmaaputridesihana3203
    @salmaaputridesihana3203 4 года назад +1

    I'm from Indonesian, waching this video with 0,9 speed and using subtitle is a very good way to learn chemistry!! Thankyou Prof!

  • @bizarrofe
    @bizarrofe 9 лет назад +3

    hey there! I'm brazilian and I'm studying for ITA's (Instituto Tecnológico de Aeronáutica) exam. This week I discovered your RUclips channel and since then I watch many of yours "Explains". I just wanna thank you for your initiative, you are helping a lot of people! (sorry for my English, I'm learning yet)

  • @erikpunteveline
    @erikpunteveline 7 лет назад +13

    This is good. To the point and not too long. A more challenging subject in chemistry, yet tackled in a pleasant setting. Keep up the good work.

  • @NothingXMuch101
    @NothingXMuch101 7 лет назад +9

    I have one of those rare professors that made me understand these mechanism, but it's always to good have supplemental videos for further concrete understanding. You sir are saving thousands of GPA's :) Thx man!!

  • @Yuchub33
    @Yuchub33 9 лет назад +42

    i saw several videos about this but yours was the easisest to understand , thanks!

  • @loriukeji
    @loriukeji 7 лет назад +4

    I completely understand this topic now and I gave the answers before you even gave the answers to the questions after the lectures. I'm so grateful.

  • @Celineemrn
    @Celineemrn 2 года назад

    a big thank you from Belgium, I learned absolutely nothing with my teacher. I found your videos 3 days before my exam, you're my savior

  • @Gantics-Antics
    @Gantics-Antics 9 лет назад +14

    This video was the perfect thing for me to touch up on the night before my Organic test! Thankyou!!!

  • @sydneesatcher8808
    @sydneesatcher8808 5 дней назад

    You have saved my organic chemistry life, all the carbons in my body thank you. Literally was terrified for my exam on friday, and this gave me so much relief and understanding. I was like, "OOOOOOHHHHH..... thats what it means." and, "OOOOOOHHHHH...... I UNNDEEERRRSTANNDD!!" :DDDD. Thank you so much!

  • @iVaried
    @iVaried 8 лет назад +12

    You're amazing man. If our university prof would just have 1% of your explanation skills..

  • @kishorediwakar1059
    @kishorediwakar1059 3 месяца назад +1

    8yrs but the lectures are still worth

  • @mrjsams01
    @mrjsams01 3 года назад +2

    This video has saved me so many hours of forcing myself to study and understand and its over 6yrs old.... Thanks so much Professor Dave!

  • @elenam.4232
    @elenam.4232 4 года назад +6

    The intro and outro somehow make me feel like I'm in kindergarten again although I'm at university. I'm so confused.
    I'm not so confused about these mechanisms anymore, the video was very helpful, thank you!

  • @shanemichael9011
    @shanemichael9011 6 лет назад +1

    Wow ! ... So when heat is increased, entropy which is basically disorder is increased. With 2 products we get 3 products. That explanation of disorder or entropy was Awesome ! Very easy to understand now. Thanks !!

  • @cahyaparamita5711
    @cahyaparamita5711 4 года назад +6

    You have no idea how thankful I am for people like you to take your precious time and make such helpful videos for dummies like us. Thank you!!

  • @benreeff6667
    @benreeff6667 Год назад +1

    This video was better then the 1hour video of my university. Thank you, now i am able make the difference between the mecanismes

  • @mecklenburgvorpommern5989
    @mecklenburgvorpommern5989 8 лет назад +6

    thank you a lot ! i live in Germany and i have to watch your Videos because you explain it better than germanvideos

  • @bigheadface
    @bigheadface 3 года назад

    I've been reading my textbook, reading 'organic chemistry as a second language', going to study groups, reading my notes, and reading my professor's notes for 2 weeks trying to understand this. In your 19 minute video, you made it clear to me finally. My exam is tomorrow.
    THANK YOU SO MUCH!

    • @gumroxmysox123
      @gumroxmysox123 3 года назад

      how did you do on the exam? I also have organic chem as a second language and it helps so much

    • @bigheadface
      @bigheadface 3 года назад

      @@gumroxmysox123 I didn't do as well as I did on my first exam, but considering how much more difficult this section was, I still did okay. 20ish points above the mean

  • @KicksKapri
    @KicksKapri 5 лет назад +11

    This is the best science page I've encountered yet!

  • @evelee9163
    @evelee9163 8 лет назад +1

    you rock- legit our lifesaver. our school does two semesters of orgo in one and we learned all of this in two weeks with a test tomorrow.

  • @vaibhavgaur4151
    @vaibhavgaur4151 3 месяца назад +5

    we got Jesus teaching us chemistry way before GTA VI

  • @LostInThaStereo
    @LostInThaStereo 6 лет назад

    I've been (helplessly) studying this for a few weeks using lectures and the dumb ass expensive online software we are required to have. But now I may ACTUALLY have a chance at my exam tomorrow morning. Thanks Dave! Wish I had discovered your channel about 3 months ago...

  • @rike12octavia14
    @rike12octavia14 8 лет назад +3

    OMGOSH YOU SAVE LIVES!!! I LEARNED SO MUCH IN 18 MINTUES YOU NO IDEA WHAT THIS MEANS

  • @waterboundsnv
    @waterboundsnv 8 лет назад +1

    Thanks Professor Dave!!!! I took organic Chemistry I over the first summer session. You undoubted raised me a letter grade atleast through all the videos I watched. You are both concise and precise. Please continue to make videos!!!!!

  • @027atulyakumar2
    @027atulyakumar2 7 лет назад +6

    you are amazing sir.. your lectures are excellent and take least amount of time... my teacher took 1 hr lecture to pass this all above our head.😂😂

  • @xXOleandriNXx
    @xXOleandriNXx 7 лет назад +2

    Thank you soooo freaking much, I'm a chemistry student from Vienna (Austria) and I've got my organic chemistry exam tomorrow and I still had not compleatly understood the matter until you explained it. This was great and soooooooo helpful!

  • @sir9integra9jr
    @sir9integra9jr 7 лет назад +8

    I failed ochem the first time around because of this shit. After two different professors, this is the first time this topic has clicked. THANK YOU FOR SAVING ME

    • @strongbodystrongmiind
      @strongbodystrongmiind 5 лет назад +1

      sir9integra9jr i fucking hate my chemistry department... i’m currently failing & everyone sucks

  • @youssefmamdouh3079
    @youssefmamdouh3079 3 года назад

    arab girl from egypt ,really thank you best prof ever ....i am studying pharmacy and really your explains are my faaaav

  • @berkaysahin4713
    @berkaysahin4713 8 лет назад +3

    Thank you so much, appreciated this video and others. Every department needs a teacher like you :D

  • @abhayanand9585
    @abhayanand9585 7 месяцев назад +1

    16:48 Question 5 was interesting and Sir the way you explained everything is just extremely admirable! Very Rare such teachers I have seen in my life...

  • @javierquimicaorganic
    @javierquimicaorganic 9 лет назад +6

    Congratulations Professor Dave!!!! Clear and eassy.

  • @matteobarca1050
    @matteobarca1050 7 лет назад +1

    I'm italian but i'm looking your videos because they are the best and the more complete in the entire net, i think

  • @ashleysherertz3133
    @ashleysherertz3133 8 лет назад +3

    This has helped me thanks! Orgo exam tomorrow!

  • @spectroxis6418
    @spectroxis6418 2 года назад

    Maaaaan I've spent a week grinding through this chapter trying to understand it and this dude just bulldozed it in like 20 mins

  • @mikem6234
    @mikem6234 9 лет назад +5

    Awesome video man! You've helped me tremendously this semester with all your videos. Thank you

  • @amanbhanse5645
    @amanbhanse5645 7 лет назад +2

    best video for explanation of Sn1,Sn2,E1 and E2 reaction!!!!!
    other video are just messy and unable to teach us properly....
    thank very much professor Dave :)

  • @g.m.43
    @g.m.43 9 лет назад +16

    you sir, are a hero!

  • @hannahmoorman1909
    @hannahmoorman1909 7 лет назад +2

    Finally...a video that is concise and simple enough to make everything clear! Thanks!

  • @lejlasabotic3791
    @lejlasabotic3791 7 лет назад +4

    Hi Professor Dave! :) You have no idea how much help these videos bring.You explain everything in such an amazing easy understandable way.Thanks so much and keep up the good work .
    Pharmacy Student from Austria

  • @vidips8275
    @vidips8275 2 года назад

    Amazing no clutter explanation. A complete revision before solving questions.

  • @stonerkebab9498
    @stonerkebab9498 8 лет назад +5

    This is all on a very basic level, but nicely explained! always good to come back and solidify the basis of organic chemistry :)

  • @Julialena97
    @Julialena97 9 лет назад +1

    I´m from Germany and my english is not very well. But I was able to understand this Mechanism, after I watched your video. Thank you very much. Especially for the exercises at the end. That helped a lot!

  • @Atharv_Nigam
    @Atharv_Nigam 7 лет назад +3

    Commendable! Sir, i watched the entire video very shrewdly and i am not sure but i guess if you look back at the instant 8:55, it should be in an increasing order...right. ??

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  7 лет назад +4

      ah i see what you mean, perhaps what i meant with those symbols was decreasing ability to perform substitution as you go to the right. i should have been clearer!

  • @sarraat.khaphaji6860
    @sarraat.khaphaji6860 8 лет назад +2

    I have an exam tomorrow
    N I'm gonna watch this
    If I understood , and I passed , because of this video ,
    I promise I'll meet you one day .. And thank you in person 💙

  • @asifanasir6384
    @asifanasir6384 7 лет назад +3

    Sir I just love your piano playing ...you're a drumist too! OMG! This all made me go crazy about you. All The Best ! 😇😊😊😊

  • @AMANDACDS1348
    @AMANDACDS1348 9 лет назад +2

    The Best explanation I've ever heard about this subject! Thank you, professor.

  • @HM-rc7nn
    @HM-rc7nn 8 лет назад +12

    Nice theme song!

  • @skanforward5190
    @skanforward5190 Год назад

    Thank you so much I m in first year bachelor of pharmceutical science and this helps me a lot in my course of organic chemistry

  • @hannaharmer7223
    @hannaharmer7223 8 лет назад +5

    The intro just made me laugh hard enough that I forgot about my ochem final for a few moments

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  8 лет назад +3

      more humor coming soon!

    • @Astra81
      @Astra81 3 года назад +1

      checking in 5 years later... how did your final go?

  • @erenjaegersrightbicep63
    @erenjaegersrightbicep63 4 года назад +2

    Prof Dave, I cannot put into words just how helpful this has been.
    Thank you so much!

  • @Ps3COD4Fan
    @Ps3COD4Fan 9 лет назад +5

    Great video!
    Only video that actually helped!
    P.S. Great camera work & angles!

  • @chocobear7851
    @chocobear7851 7 лет назад +2

    i watched your videos to help me refresh while teaching gen chem discussion. now time to watch organic chem videos for the next class

  • @ThatsSoStef
    @ThatsSoStef 9 лет назад +8

    thank you soooo much!! you are a life saver!!!

  • @neoarya4919
    @neoarya4919 8 лет назад +2

    Thanx, prof. Dave...u have made this chapter easier to understand by explaining it from basic!!!

  • @subhabrataghosh3565
    @subhabrataghosh3565 7 лет назад +7

    but in 2:03 min you msaid the 1 degree carbocation is unstable but it can rearrange itself.:)

  • @kryt7955
    @kryt7955 6 месяцев назад

    This video is a gem. I am definitely sharing this with all my confused organic chemistry classmates.

  • @airman9209
    @airman9209 9 лет назад +3

    You like.... Killed it. Bravo! You taught me organic haha

  • @indiraflo6770
    @indiraflo6770 2 года назад

    This is saving me 7 years later
    Thank you so much 🥺🙏🏼

  • @agent475816
    @agent475816 9 лет назад +3

    Thanks, this helped a lot!

  • @joeferdin9871
    @joeferdin9871 4 года назад

    Woahh!!This is actually a separate chapter in many organic books but here, it just got cleared within 20 mins.That's so cool!!!!!

  • @__-xh3uw
    @__-xh3uw 4 года назад +7

    E1cb: *Am I a joke to you?*
    Jokes aside but this really helped me a lot :-)

  • @sadeema1942
    @sadeema1942 9 лет назад +2

    Professor Dave, just when I thought all hope was lost, you came to my rescue. Thank you a million times.

  • @ConnectSparrows
    @ConnectSparrows 7 лет назад +4

    Im pretty sure my grade just went from an F to an A because of you. lol

  • @sinaabedini7487
    @sinaabedini7487 4 года назад +1

    The biology/chemistry community is blessed 🙌 thank you chem jesus

  • @shinfelidae2751
    @shinfelidae2751 6 лет назад +11

    Prof Dave, you are saving my ass. I have a chemistry exam in 80 minutes XD

  • @abftv1027
    @abftv1027 6 лет назад

    18 minutes complete e1,e2,sni and sn2. thanks sir for this lesson

  • @rubysinha1282
    @rubysinha1282 5 лет назад +30

    Any Indian over here
    Hit the like button
    Great job professor

  • @abetterworld96
    @abetterworld96 3 года назад +1

    Man, he just showed me a clever way of deciding the mechanisms. We ow u for that.

  • @richadixit3758
    @richadixit3758 5 лет назад +11

    Lord Jesus came to our rescue

  • @Moon-px1oh
    @Moon-px1oh 5 лет назад +1

    Thank you so much! I still can't believe how good you can explain 😱
    My mother tongue is German but since there are no German videos for this topic I decided to try this one. Before I watched this I was really desperate because tomorrow I have a test in organic chemistry and I didn't understand any of this. It's amazing that I understood it better when you explained it in English than when my teacher explained it in German 😄
    Thank you so so much! 😊💚
    I instantly had to subscribe to your channel 😜

  • @Obama_OReilly
    @Obama_OReilly 7 лет назад +5

    14:40 "that is WEAK"

    • @squadcom1221
      @squadcom1221 4 года назад

      Me when the homies bail on plans to go out

  • @jessicaegharevba195
    @jessicaegharevba195 5 лет назад

    Exams in lest than two weeks and I am stuck with organic 🧪 but you seems to explain it effortlessly. The short videos help a great deal longer videos with young people we get lost along the way..... Thanks a lot man

  • @pavanchary5576
    @pavanchary5576 9 лет назад +30

    this dude looks fucking ripped

    • @ProfessorDaveExplains
      @ProfessorDaveExplains  9 лет назад +50

      +Pavan Chary by ripped, do you mean super buff or insanely high?

    • @arnieisbeast
      @arnieisbeast 9 лет назад +27

      +Professor Dave Explains Well you were holding like 6 markers at once so???

  • @Thaumius
    @Thaumius 5 лет назад

    Thanks Dave, I did my substitution and elimination test today and I got 100% 35/35 score! althought I got a point deduced because of I through that SN1 had no transition states so I didn't draw them in the potential energy graph of Tert butyl Bromide + Water He restored a point to everyone because the question involving the energy diagram was misleading.

  • @MrJoelerjoeler
    @MrJoelerjoeler 8 лет назад +5

    anyone else google what a parsec was....

  • @Eric-sq4hd
    @Eric-sq4hd 5 лет назад

    dude. what a boss. he just lays it down. slam dunking over other teachers. and he's just like "yep"

  • @rudranshsharma7064
    @rudranshsharma7064 5 лет назад +3

    I didn't know that Jesus taught org chem so well.

    • @prammar1951
      @prammar1951 4 года назад +1

      I didn't know that Mozart studies organic chemistry.

    • @rudranshsharma7064
      @rudranshsharma7064 4 года назад +2

      @@prammar1951 I had to pass high school y'know.

    • @prammar1951
      @prammar1951 4 года назад

      @@rudranshsharma7064 lol

  • @ac4190
    @ac4190 3 года назад

    Watching this right before my Orgo ACS exam. Thanks Dave!

  • @USMAI
    @USMAI 9 лет назад +3

    Dave Grohl?

  • @nataliekallay5275
    @nataliekallay5275 6 лет назад +2

    THANK YOU SO MUCH!! u literally saved me after what seems like a whole semester of pure OC chaos in my head..

  • @matthewyoungsoonam
    @matthewyoungsoonam 9 лет назад +4

    Hairy mozart

  • @sadafbenaf
    @sadafbenaf 8 лет назад +1

    Thank you so much Prof. Dave!
    I watched this video over and over until I "think" dot some of it down.
    Hopefully I can apply this in many different situations!