Vinylogous Wolff rearrangement. 4. General reaction of .beta.,.gamma.-unsaturated .alpha.'-diazo ketones
作者:Amos B. Smith、Bruce H. Toder、Stephen J. Branca
DOI:10.1021/ja00326a018
日期:1984.7
Preparation et transposition de Wolff vinylogue de 21 α'-diazocetones β,γ insaturees acycliques et monocycliques. Formation d'esters γ,δ-insatures. La transposition est catalysee par CuSO 4 , Cu(AcAc) 2 ou Cu(OTf) 2 en presence de divers alcools; mecanisme
制备和转位 de Wolffvinylogue de 21 α'-diazocetones β,γ insaturees acycliques et monocycliques。形成 d'esters γ,δ-insatures。La transposition est catalysee par CuSO 4 , Cu(AcAc) 2 ou Cu(OTf) 2 en存在de divers alcools;机制
The regio- and stereoselectivities of the reaction of allyl acetates and silyl ketene acetals catalyzed by palladium(0) complexes: a new route to cyclopropane derivatives
Pd(0) complexes of chelating phosphines catalyzed the coupling of allyl acetates and ketene silyl acetals to yield alpha-allylated carboxylic acid esters. Unexpectedly alkylation of the central carbon atom (C2) of the allyl groups was also observed with concomitant formation of cyclopropane derivatives. In both cases the silyl enolate attacked the allyl group from the side opposite Pd. The yield of the reaction was sensitive to the nature of the ligand coordinated with palladium. The 1,1'-bis(diphenylphosphino)ferrocene-Pd complex was the most effective catalyst.
Palladium(0)-catalyzed allylic alkylation and amination of allylnitroalkanes
作者:Rui Tamura、Louis S. Hegedus
DOI:10.1021/ja00377a034
日期:1982.6
CARFAGNA, C.;MARIANI, L.;MUSCO, A.;SALLESE, G.;SANTI, R., J. ORG. CHEM., 56,(1991) N2, C. 3924-3927
作者:CARFAGNA, C.、MARIANI, L.、MUSCO, A.、SALLESE, G.、SANTI, R.
DOI:——
日期:——
TAMURA, R.;HEGEDUS, L. S., J. AMER. CHEM. SOC., 1982, 104, N 13, 3727-3729