Hydrocarbons Question 186
Question: Formation of 2-butene as major product by dehydration of 2-butanol is according to [MP PMT 1995]
Options:
A) Markownikoff rule
B) Saytzeff rule
C) Peroxide effect
D) Anti-Markownikoff rule
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{2-Butanol}{\mathop{CH_3\underset{OH}{\mathop{-\underset{|}{\mathop{C}}H-}}CH_2-CH_3}}\to $
$ \underset{2-Butene}{\mathop{CH_3-CH=CH-CH_3}} $
$ +H_2O $ According to this rule H atom goes from that b - carbon which is less hydrogenated.