Question

CH2CH3 CH2CH3 CH2CH3 CH2CH3 ...100 HC-CH3 H3COH H2COH - C CH3 HN –H HẠ NHA HAN>c<H HỮc_INH coo coo 3 Coo coo 14) (8 pts) Identify the stereoisomers. a) Which pairs are enantiomers? b) Which pairs are diastereomers? 15) (8 pts) Which of the stereoisomers is L-(2S, 3S)-isoleucine? (Show your work to get full credit.)

Answer 1

And projection of the given The rischer Compounds Hiltz 7 Chhetty 0 CH₂ CH3 chatz ا س سا ل ام جی اے NA HONCH HOĆ W KNECH A COO CH₂ Cletz CH₂ CH3 H the eiz H CH₂ CH3 CH₂ CH3 H H H HH CH3 t turns int the 200 00 - 2 wynt vood notate Icoo Hje nits 4 H 4 Coly utz all the molecules inplane 180° 'coo 'coe coo to H H 2 vit 24 H 3 CH te city wheth 4 CH₂ CLAR 4 CH₂ at that atz D/2R 3R) L (25, 35) L(28,35) D (25,36) @ A the structure 1 and 2 ; 3 and 4 are related by mirror image and they are not superimpossible, so they are enantiomers. pairs (1, 2) and (3,4)

From the structurns the b. Diastereomers are - (1,3), (1,4), (2,3), (2,4) (15) from the all structures, it is clear that the structure 4 is- L- (25, 35)-isoleucine. CH₂ CH3 حج وليد HE Hz Сьо