First example of 1,1-bimetalloalkenes of tellurium and zirconium: Application for stereoselective preparation of (Z)-α-organotelluro-α,β-unsaturated carbonyl compounds

Article abstract of DOI:10.1016/0040-4039(96)01711-X

Hydrozirconation of acetylenic tellurides 1 affords the first examples of 1,1-bimetalloalkenes of tellurium and zirconium 2. Intermediates 2 are reacted with acyl halides to obtain (Z)-α-organotelluro-α,β-unsaturated carbonyl compounds 4 via Zr-Cu transme