Chemistry - STEREO ISOMERISM Question with Solution | TestHub
Draw both possible conformations for the indicated cyclohexane :
(a) trans-1-bromo-2-ethylcyclohexane (b) cis-1-bromo-2-ethylcyclohexane
(c) trans-1-bromo-3-ethylcyclohexane (d) cis-1-bromo-3-ethylcyclohexane
(e) trans-1-bromo-4-ethylcyclohexane (f) cis-1-bromo-4-ethylcyclohexane
(g) a cyclohexane with 2 methyl groups, both axial
(h) a cyclohexane with 2 methyl groups, both equatorial
Options:
Answer:
Solution:
(a) trans-1,2 (e,e a,a) :

(b) cis-1,2 (e,a a,e) :

(c) trans-1,3 (e,a a,e) :

(d) cis-1,3 (e,e a,a) :

(e) trans-1,4 (e,e a,a) :

(f) cis-1,4 (e,a a,e) :

(g) one possible answer - trans-1,2-dimethyl, diaxial : 
(h) one possible answer - trans-1,2-dimethyl, diequatorial : 
