Hydrostannation of Acetylenic Acid Derivatives

Bew, Sean P. and Sweeney, J. B. (1991) Hydrostannation of Acetylenic Acid Derivatives. SYNLETT, 1991 (2). pp. 109-110. ISSN 0936-5214

Abstract

The reaction of acetylenedicarboxylic acid and propiolic acid with tributyltin hydride efficiently yields vinylic tin compounds bis(tributylstannyl) 2-tributylstannylbutenedioates (E/Z,1:20) and tributylstannyl 3-tributylstannylacrylates (E/Z,1:1), respectively, with regiochemistry similar to that seen in the reaction of the corresponding esters.