AMINOSILANES IN ORGANIC-SYNTHESIS - ADDITION OF ORGANOCOPPER REAGENTSON GAMMA-BIS(TRIMETHYLSILYL)AMINO-ALPHA-ACETYLENIC AMIDES, ESTERS ANDKETONES - STEREOCHEMISTRY AND SOME SYNTHETIC USES
Rjp. Corriu et al., AMINOSILANES IN ORGANIC-SYNTHESIS - ADDITION OF ORGANOCOPPER REAGENTSON GAMMA-BIS(TRIMETHYLSILYL)AMINO-ALPHA-ACETYLENIC AMIDES, ESTERS ANDKETONES - STEREOCHEMISTRY AND SOME SYNTHETIC USES, Tetrahedron, 49(21), 1993, pp. 4603-4618
The stereochemical outcome of the carbocupration of gamma-bis(trimethy
lsilyl)amino-alpha-acetylenic amide, esters and ketone was studied. A
judicious choice of substrate, reagent and(or) reaction conditions all
ows to perform highly stereoselective cis or trans addition. The inter
mediate vinylic copper adducts, with (E) or (Z) configuration, react w
ith electrophilic reagents to provide short routes to substituted pyrr
olinones and pyrroles.