REACTION OF (TRIMETHYLSTANNYL)COPPER(I) REAGENTS WITH α,β-ACETYLENIC ESTERS. STEREOCONTROLLED SYNTHESIS OF ALKYL (E)- AND (Z)-3-TRIMETHYLSTANNYL-2-ALKENOATES

Article abstract of DOI:10.1016/0040-4020(89)80065-1

The reactions of α,β-acetylenic esters 1 with the (trimethylstannyl)copper(I) reagents 4-7 provide good to excellent yields of the corresponding β-trimethylstannyl α,β-unsaturated esters 10 and (or) 11.In nearly all cases studied, except for the reactions