Question

1. Draw a chair conformation of cis-1-tert-butyl-2-ethyleyclohexane. Then, ring flip the chair to generate the other chair conformation, Circle the most stable conformation of the molecule (8 pts). 2. Designate the RIS configuration of all the stereocenters in the following molecules (8 pts): OH HO+CH3 H oH CHCI 3. Identify the relationship between the following molecules as: identical, constitutional isomers. enantiomers, or diastereomers (8 pts). enantiomers. e home enantiomers diastereomers. ó Tenantiomers. I Ć dias tereomers. MAC mome of the following molecules (12 pts)?

Answer 1

the solution won't form 1) cis-1-tet-butyl-2-ethyly do hexene. more stable Ho to < s you Anticlockwise (s) 3 clockwise = R But it is s Since Lowest priority is not on dashed line Anticlockwise (5) On Anticlockeoise (s) But it is R because it's His on solid wedge.

We assign rotation priority to 4 groups attached to chiral carbon and see the I clockwise = R 2 But the 4thth group should be on dashed Anticlockwise = I line. Otherwise change the configuration

Both chiral centres are changed on & 4o I configuration at all chiral * Se reentils is changed then it is d enantiones Die wiele Series on (s. Rj Cockermor e - But since both Both molecules are inter convertiple by just rotation 180° in planes of pape, it is some configuration along chiral centre is - changed so it is { Enantiomer? to changed R a d) ny enantiones just like cas part but there are not identicel because rotation in plane of paper doesn't interconnect them H is not achiral centre, 30 two compounds au same Cidentical) a