|Oct11-08, 02:11 AM||#1|
Just to check that I've understood the concept of isomerism:
1. The problem statement, all variables and given/known data
How many stereoisomers are possible for
a) a 2-ketoheptose
b) an aldoheptose
c) a ketotriose
2. The attempt at a solution
a) First: does the "2" mean that the carbonyl carbon is the second C-atom?
The molecule has 4 asymmetric centers and hence 2^4 = 16 possible stereoisomers.
b) 5 asymmetric centers, so 2^5 = 32 possible stereoisomers
c) No asymmetric centers, therefore 2^0 = 1 possible stereoisomer
|Oct11-08, 03:25 AM||#2|
Looks OK to me, but second opinion won't hurt.