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1. Which of the following represents the most stable conformation of trons-1,3-d

ID: 807042 • Letter: 1

Question

1. Which of the following represents the most stable conformation of trons-1,3-dimethylcyclohexane? d) none of the preceding 2. Which of the following represents the most stable conformation of cis-1-ethyl-2- isopropylcyclohexane? 3. What is the delta E (kcal/mol) for the two chair conformations of cis-1,3-dimethylcyclohexane? Allow 0.9 kcal/mol/gauche for a methyl group. a) 0 b) 0.9 c) 1.8 d) 3.6 4. What is the name of the following compound? a) bicyclo[2.2 2]heptane b) bicyclo(3.2.1)heptane c) bicyclo(3.1.1)hexane d) bicyclo(3.1.1)heptane 5 What is the name of the following compound? a) bicyclo[4.2 0]heptane b) bicyclo(3.2.1)heptane c) bicyclo(3.2.1)octane d) bicyclo(2.2.2)octane

Explanation / Answer

1-b

2-c

3-d

4-

bicyclo [3.1.1] helptane

5

bicyclo [3.2.1] octane