A STEREOSELECTIVE SYNTHETIC ROUTE TO (Z)-α-STANNYL-α,β-UNSATURATED ESTERS

Abstract

Acetylenic stannanes 1 react with Cp₂ Zr(H)Cl (Cp = η⁵-C₅H₅) and CO to give acylzirconocene chloride derivatives 2, which are trapped with Br₂ in alcohol to afford (Z)-α-stannyl-α,β-unsaturated esters 3 in good yield.

ACKNOWLEDGMENTS

Project 29772007 was supported by the National Nature Science Foundation of China. This work was also supported by The National Nature Science Foundation of Zhejiang Province.