Under mild conditions the acyl group of acylzirconocene chloride 1 formed from an alkene or alkyne and [(C5 H5 )2 ZrHCl] reacts as an "unmasked" acyl anion. The Lewis acid mediated reactions with aldehydes that yield α-ketol products in high yields demonstrate the versatility of this reagent for C-C coupling.
SOUPPE, J.;NAMY, J-L.;KAGAN, H. B., TETRAHEDRON LETT., 1984, 25, N 27, 2869-2872
作者:SOUPPE, J.、NAMY, J-L.、KAGAN, H. B.
DOI:——
日期:——
Reactions of acyl anions generated from acid chlorides and diiodosamarium
作者:J. Souppe、J-L. Namy、H.B. Kagan
DOI:10.1016/s0040-4039(01)81312-5
日期:1984.1
Acid chlorides react with SmI2 to give α-diketones. Various experiments show that the initially formed acyl radical is rapidly transformed into an acyl anion which is thus generated by quite an unusual route.