4. Write a mechanism for each of the following reactions. Use the mechanistic arrowconvention to show electron flow for ionic (polar) steps and for pericyclic steps and includethe structure of all important reaction intermediates. CO2CH3COCH3a)OHCO2CH3CH3(CH3)2N-C(OCH3)2CH2PHN.N.b)180°CCH2CN(CH3)2ноCH2CH3CH,CH3OCCH31) 2 LİN'Pr2 (LDA)Osi'Bu(CH3)2OCCH32) 2 'Bu(CH32SICIc)(CH3)2 BuSiO3) 60°CO

Answered: Image /qna-images/answer/54ede79a-2cf0-4b0b-b1ad-b5798b12e7b0.jpg

Answered: COCH3 -- a) N: OH CO2CH3 CH3 CH2PH N.…

COCH3 -- a) N: OH CO2CH3 CH3 CH2PH N. b) (CH3)½N-C(OCH3)2 .N. 180°C CH2CN(CH3)2 но CH2CH3 CH,CH3 OCCH3 O 1) 2 LIN'Pr2 (LDA) os'Bu(C OCCH3 2) 2 'Bu(CH32SICI c) (CH3)2 BuSio 3) 60°C

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter13: Substitution

Section: Chapter Questions

Problem 18CTQ

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Question

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4. Write a mechanism for each of the following reactions. Use the mechanistic arrow
convention to show electron flow for ionic (polar) steps and for pericyclic steps and include
the structure of all important reaction intermediates.

CO2CH3
COCH3
a)
OH
CO2CH3
CH3
(CH3)2N-C(OCH3)2
CH2PH
N.
N.
b)
180°C
CH2CN(CH3)2
но
CH2CH3
CH,CH3
OCCH3
1) 2 LİN'Pr2 (LDA)
Osi'Bu(CH3)2
OCCH3
2) 2 'Bu(CH32SICI
c)
(CH3)2 BuSiO
3) 60°C
O

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