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Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Ph :0: →XII CH₂ CH₂CH3 :Cu CH₂CH3 Ph Cu CH₂CH3 CH₂CH3

Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Ph :0: →XII CH₂ CH₂CH3 :Cu CH₂CH3 Ph Cu CH₂CH3 CH₂CH3

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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ol The conjugate addition of an alkyl group to an a,ß-unsaturated ketone is one of the more useful 1,4-addition reactions, just as direct addition of a Grignard reagent is one of the more useful 1,2-addition reactions. Conjugate addition occurs via the use of a lithium dialkylcopper reagent, also called a Gilman reagent. The mechanism is thought to involve the addition of the dialkylcopper anion to the B- carbon to give a copper-containing intermediate. Transfer of an alkyl group to carbon and release of a neutral alkylcopper species completes the reaction. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions سلم NOC XT Ph :0: CH₂ 1. (CH3CH₂)2CuLi 2. H₂O* CH₂CH3 Cu CH₂CH3 Ph Cu CH3 CH₂CH3 CH₂CH3 8a
Transcribed Image Text:ol The conjugate addition of an alkyl group to an a,ß-unsaturated ketone is one of the more useful 1,4-addition reactions, just as direct addition of a Grignard reagent is one of the more useful 1,2-addition reactions. Conjugate addition occurs via the use of a lithium dialkylcopper reagent, also called a Gilman reagent. The mechanism is thought to involve the addition of the dialkylcopper anion to the B- carbon to give a copper-containing intermediate. Transfer of an alkyl group to carbon and release of a neutral alkylcopper species completes the reaction. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions سلم NOC XT Ph :0: CH₂ 1. (CH3CH₂)2CuLi 2. H₂O* CH₂CH3 Cu CH₂CH3 Ph Cu CH3 CH₂CH3 CH₂CH3 8a
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