Question

6. Draw all the possible stereoisomers of each of the following compounds and indicate which dentical hel are enantiomers, diastereomers, or meso compounds. 20 pts which one are lo 1. CHO H-C-OH H-C-H CHO b. CHÚOH H-C-Br H-C-CH, C H,OH 7. What is the major biological source of lactose? 8. What metabolic defect causes galactosemia? 9. What simple treatment prevents most of the ill effects of galactosemia? 10. Name 2 or 3 major physiological effects of galactosemia.

Answer 1

Answer :- сно сно CHO CHO (a) 4-6 Hct Hoc-4 on KB- (-4 is 4 tc-04 Hoi-u Ho-c-4 IR сно C-on is CHO CHO CHO = meso compounds I and 2 Identical – 1,2 enantiomers - 3,4 diastereoners - 1,3 and 14 or 2,3 and 2,4 = = - molecule contain plane art symmetry called meso compound. neat Identical compounds have sume contiguration at all chir al centers enantiomers have opposite contiguration at all. chiral centers diastereomers have opposite contriguration at least at one chir al center (not at all chiral Center) =>

сон ской Сң оң н—са в cңo1 ВТ——ң н——-си. и н — -67 -- 15 Т c-c-1 қ 15 г " сной cң, он cң оң Сң оң = 7 enantiomers 1,2 and 3,4 diastereomers 1,3 and 14 22 and 2 ч → No identical and no meso compounds.