At 06:14 there is an *sigh* embarrassing mistake (I had update the problem but had written something down incorrectly), so please see the written solution which shows ONE quartet (2 carbons away from the ketone, a part of the double bond) and a SINGLET (not doublet) at the -CH3 group.
At 06:14 there is an *sigh* embarrassing mistake (I had update the problem but had written something down incorrectly), so please see the written solution which shows ONE quartet (2 carbons away from the ketone, a part of the double bond) and a SINGLET (not doublet) at the -CH3 group.
Hey Joe I'm pretty sure for number 2 the second structure has the wrong answers.