NEGISHI EI-ICHI; TOUR J. M., TETRAHEDRON LETT., 27,(1986) N 40, 4869-4872
作者:NEGISHI EI-ICHI、 TOUR J. M.
DOI:——
日期:——
Palladium-catalyzed carbonylative cyclization via trapping of acylpalladium derivatives with internal enolates. Its scope and factors affecting the C-to-O ratio
作者:El-ichi Negishi、Christophe Copéret、Takumichi Sugihara、Izumi Shimoyama、Yantao Zhang、Guangzhong Wu、James M. Tour
DOI:10.1016/s0040-4020(01)80765-1
日期:1994.1
The Pd-catalyzed carbonylative cyclization reaction involving omega-acyl-substituted acylpalladium derivatives can proceed via intramolecular trapping with either C- or O-enolates; the preferential formation of either 5- or 6-membered rings dictates the C-to-O ratio in the trapping with enolates.
Complete reversal of regiochemistry in cyclic acylpalladation. Novel synthesis of quinones.