Question

5) Rank the following carbocations in order of decreasing stability. U (CH3) ČCH CH3 CH CH2CH=CH CH CH=CCHz 2 14 A. 2>1>4>3 B. 2>1>3>4 C. 4>3>2>1 D. 3>4>2>1 E. 2 > 4>3>1

Answer 1

Ans 2397473 90 Because of zo carbocation more stable then go, and vinyllic carbocation is very less stabe 4 is more stable because of - CH3 (+1) effect rather then in 3 Where only hyperconjugation