8. What is the relationship between the following molecules? (10 points) Choose from: A. Identical B. Enantiomers C. Diastereomers Indicate for each molecule whether it is optically active, and identify any meso compounds. a) HO ?,? CH ?? b) CH CHa c) 0 OH OH NH2
Solution
a)
Both are having same chemical formula and bond conncetivity.
Compound 1 having stereochemistry of (2S,3S)
Compound 2 having stereochemistry of (2R, 3S)
So; they are diastereomers
b)
Both are having same chemical formula and there is no chiral center in it
(Since; carbon not attached to 4 different groups; two of them are hydrogens)
So; they are Identical
c)
Diastereomers.
Stereochemistry at NH2 attached carbon is same (both S) and hydroxy attached are different.
.
8- What is the relationship between the following molecules- (10 point.docx
1. 8. What is the relationship between the following molecules? (10 points) Choose from: A.
Identical B. Enantiomers C. Diastereomers Indicate for each molecule whether it is optically
active, and identify any meso compounds. a) HO ?,? CH ?? b) CH CHa c) 0 OH OH NH2
Solution
a)
Both are having same chemical formula and bond conncetivity.
Compound 1 having stereochemistry of (2S,3S)
Compound 2 having stereochemistry of (2R, 3S)
So; they are diastereomers
b)
Both are having same chemical formula and there is no chiral center in it
(Since; carbon not attached to 4 different groups; two of them are hydrogens)
So; they are Identical
c)
Diastereomers.
Stereochemistry at NH2 attached carbon is same (both S) and hydroxy attached are
different.
