Answered: (a) Explain with suggestive mechanism…

(a) Explain with suggestive mechanism why BuLi undergoes 1,2-addition with a, B- unsaturated ketones, whereas Me,CuLi undergoes 1,4-addition with the same.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions

Section30.SE: Something Extra

Problem 17MP

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Question

with detail mechanism

(a) Explain with suggestive mechanism why
BuLi undergoes 1,2-addition with a, B-
unsaturated ketones, whereas Me,CuLi
undergoes 1,4-addition with the same.

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