Question

Ecamine structures a through j, shown below, with reaspect to their symmerty or lack of it. Assuming that the five-membered rings and the ring in compound g are plannr. The wedgephatched bonds in b,c,d & e designate specific configuration. Also for the acyclic compounds assume stable anti conformations. Answer each of the following questions by writing letters (a through j), corresponding to your selections, in each answer box. If there is no structure that fits the description enter an x in the answer box.

Answer 1

Correct Answer - A-e,f,j; B-a,c,d,g,g,I, b;C-None
(A) e,f,j `to` Str. Do not have P.O.S. & C.O.S. so optically active.
(B) a,b,c,d g,i-has P.O.S. so are O.I.
(C ) No one str. Has C.O.S..