Ans. Diastereomers. Sol. Both are butane-1,2,3-triol, HOCH 2 -CHOH-CHOH-CH 3 . Reading off the Newman projection (front carbon bears CH 3 , back carbon bears CH 2 OH) and assigning CIP priorities at both centres gives (2S,3R) for (a); the zig-zag structure (b) is (2S,3S). Only one of the two stereocentres changes between the two drawings : diastereomers.

Start Free Mock LoginAlready registered? Login here

Chemistry - STEREO ISOMERISM Question with Solution | TestHub

ChemistrySTEREO ISOMERISMASSIGNING RELATIONSHIPEasy2 minQB

ChemistryEasysingle choice

structure and

Options:

Answer:

Solution:

Ans. Diastereomers.

Sol. Both are butane-1,2,3-triol, HOCH₂-CHOH-CHOH-CH₃. Reading off the Newman projection (front carbon bears CH₃, back carbon bears CH₂OH) and assigning CIP priorities at both centres gives (2S,3R) for (a); the zig-zag structure (b) is (2S,3S). Only one of the two stereocentres changes between the two drawings : diastereomers.

Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:ASSIGNING RELATIONSHIP

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...