Palladium catalyzed coupling of organostannanes with vinyl epoxides
作者:David R. Tueting、Antonio M. Echavarren、J.K. Stille
DOI:10.1016/0040-4020(89)80010-9
日期:1989.1
The coupling reaction of organotin reagents with vinyl epoxides, catalyzed by palladium, takes place at ambient temperatures, regioselectively, giving predominately the 1,4-addition product. Both aryl- and vinylstannanes undergo coupling in high yields, while acetylenic, allylic and benzylic tin reagents either give low yields or fail to couple. Although the double bond geometry in the vinylstannane
Palladium catalysis in cephalosporin chemistry: general methodology for the synthesis of cephem side chains
作者:Vittorio Farina、Stephen R. Baker、Daniel A. Benigni、Sheila I. Hauck、Chester Sapino
DOI:10.1021/jo00310a014
日期:1990.11
Palladium-catalyzed coupling of vinyl epoxides with organostannanes
作者:Antonio M. Echavarren、David R. Tueting、J. K. Stille
DOI:10.1021/ja00220a054
日期:1988.6
Palladium(II)-assisted dialkylation and alkylation/acylation of optically active ene carbamates via trialkylorganostannane cross-coupling and carbonylative coupling processes
作者:John J. Masters、Louis S. Hegedus、Joaquin Tamariz
DOI:10.1021/jo00019a038
日期:1991.9
Alkylation of benzyl vinyl carbamate and propene with the anions of diethyl methylmalonate or dimethyl malonate in the presence of palladium (II) chloride, followed by cross-coupling or carbonylative cross-coupling with organostannanes, effected an overall dialkylation or alkylation/acylation of the monoolefin substrate. Complete control of stereochemistry in this palladium(II)-assisted reaction was observed using optically active ene carbamates affording beta-amino-unsaturated keto esters in good chemical yields and excellent optical purity.
COREY E. J.; ESTREICHEN H., TETRAHEDRON LETT., 1980, 21, NO 12, 1113-1116