Silylformylation catalyzed by Rh and Rh-Co mixed metal complexes and its application to the synthesis of pyrrolizidine alkaloids
作者:Iwao Ojima、Robert J. Donovan、Masakatsu Eguchi、William R. Shay、Patrizia Ingallina、Anna Korda、Qingping Zeng
DOI:10.1016/s0040-4020(01)87260-4
日期:1993.1
dialkyne, and an alkynyl nitrile proceed in high yields in which alkene and nitrile functionalities are inert for the reaction. Silylformylation is successfully applied to the syntheses of pyrrolizidinealkaloids, (±)-isoretronecanol and (±)-trachelanthamidine, from 5-ethynyl-2-pyrrolidinone (6) in combination with amidocarbonylation.
Rhodium-catalyzed silylformylation and amidocarbonylation are applied to the syntheses of pyrrolizidinealkaloids, (±)-isoretronecanol and (±)-trachelanthamidine, from 5-ethynyl-2-pyrrolidinone.