Question

In sugar chemistry, diastereomers that differ at only one chiral carbon atom are called

Answer 1

Epimer is a pair of stereoisomers which differ at only one carbon or stereogenic center All other centers are same in both in terms of stereochemistry D-glucose and D-mannose are C2 epimers so; the structure of glucose is same as mannose except for the configuration of the 2nd carbon 1 CHO СНО 2 s) 2 R НО -OH Н 3 S) H 3 S) H НО НО- 4 R) OH 4 R Н -OH Н R R) -OH Н -OH Н 6Cн,он 6сH,он D-mannose D-glucose

D-glucose and D-galactose are C4 epimers so; the structure of glucose is same as galactose except for the configuration of the 4th carbon 1 1 CHO СНО 2 R) Н 2 R OH -OH Н 3 S) H 3 S) H НО- НО 4 S) H НО- 4XR)_OH Н 5 Н R -OH 5 R OH Н 6CH,он 6CH,он D-galactose D-glucose