Question

Pyridine when heated with
n-butyl lithium gives....

A. 2-n butyl pyridine
B. 3-n butyl pyridine
C. 2-lithium pyridine
D. 3-lithium pyridine ​

Answer 1

Answer:

B. will b the answer may be........

Answer 2

The correct option is A.

• n-butyl lithium is an organolithium compound.
• When n-butyl lithium is treated with pyridine it abstracts the alpha proton of pyridine and produces 2-n butyl pyridine along with lithium hydride.
• The reaction is as follows-
• $C_5H_5N+C_4H_9Li\rightarrow C_9H_{13}N+LiH$.
• Hence pyridine an amine base one heating with organolithium compound n-butyl lithium gives 2-n butyl lithium as a product.