FIRST EXAMPLE OF 1,1-BIMETALLOALKENES OF TELLURIUM AND ZIRCONIUM - APPLICATION FOR STEREOSELECTIVE PREPARATION OF (Z)-ALPHA-ORGANOTELLURO-ALPHA,BETA-UNSATURATED CARBONYL-COMPOUNDS
Jw. Sung et al., FIRST EXAMPLE OF 1,1-BIMETALLOALKENES OF TELLURIUM AND ZIRCONIUM - APPLICATION FOR STEREOSELECTIVE PREPARATION OF (Z)-ALPHA-ORGANOTELLURO-ALPHA,BETA-UNSATURATED CARBONYL-COMPOUNDS, Tetrahedron letters, 37(42), 1996, pp. 7537-7540
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)-alpha-organotelluro- alph
a,beta-unsaturated carbonyl compounds 4 via Zr-Cu transmetallation. Co
pyright (C) 1996 Elsevier Science Ltd