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Cu_Zn_Organometallics

its all about organometallic chemistry of zinc and copper metal

Reaction of

Reaction of Organocuprates • reaction of dialkylcuprates with α,β-unsaturated aldehydes results in the preferential 1,2-addition to the carbonyl group. • However, in the presence of Me 3 SiCl, conjugate addition prevails to furnish, after hydrolysis of the resultant silyl enol ether, the saturated aldehyde.

Reaction of Organocuprates • Conjugate additions of dialkylcuprates to β-substituted-α,βunsaturated acids and esters give low yields. Addition of boron trifluoride etherate, BF3·OEt 2 , to certain dialkylcuprates and higher-order cuprates enhances their reactivity in Michael additions to conjugated acids and esters.

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