The pyranose form of glucose dominates. In equilibrium it may have extremely small amount of furanose .. Hence sometimes its generalized that furanose is not shown by glucose
Depending on how you are orienting changes or doesn't change the configuration. Fischer projection is restricted to 2 dimensional structure. 1. If u change the orientation of 3 ligands or change it by 180 degrees, in this case one ligand position remains constant n 3 changes.. This doesn't change the configuration. 2. If u rotate 2 ligands or rotate by 90 degrees, this changes the configuration. In carbohydrates we are rotating 3 ligands, one position remains intact, hence configuration doesn't change. In thses structures the rotation is nothing but alignment of the groups so that water is eliminated and the oxide ring is formed.
Thank you very much! Simply and pratically explained mam God bless you!
All teachers are telling furanose of fructose not of glucose
Thanku for clearing my doubts
The pyranose form of glucose dominates. In equilibrium it may have extremely small amount of furanose .. Hence sometimes its generalized that furanose is not shown by glucose
in furanose the oh group on the carbon number 5 has direction to left handside not to right
The only thing I don't get is how orientating of groups doesn't change the configuration. Could you explain that? Thanks
Depending on how you are orienting changes or doesn't change the configuration. Fischer projection is restricted to 2 dimensional structure.
1. If u change the orientation of 3 ligands or change it by 180 degrees, in this case one ligand position remains constant n 3 changes.. This doesn't change the configuration.
2. If u rotate 2 ligands or rotate by 90 degrees, this changes the configuration.
In carbohydrates we are rotating 3 ligands, one position remains intact, hence configuration doesn't change. In thses structures the rotation is nothing but alignment of the groups so that water is eliminated and the oxide ring is formed.
@@chemistryscholars5060 🥰🥰Thanks
Thanku mam