Diastereocontrol in the Synthesis of 2,3,4-Trisubstituted Pyrrolidines and Tetrahydrofurans via a Palladium(II)-Catalyzed Three-Component Coupling Reaction
摘要:
The synthesis of trisubstituted pyrrolidines and tetrahydrofurans from boronic acids, allenes, and imines or aldehydes via a five- and a three-step protocol, respectively, is described. The assignment of the relative stereochemistry in the pyrrolidines and tetrahydrofurans confirmed the mechanistically significant stereochemical divergence of the palladium-catalyzed three-component coupling reaction. The methodology is applicable to the preparation of combinatorial libraries of pyrrolidines related to pharmaceutical agents and bioactive natural products.
Synthesis of Homoallylic Alcohols via Palladium-Catalyzed Three-Component Coupling of an Arylboronic Acid with Allenes and Aldehydes
作者:Chad D. Hopkins、Helena C. Malinakova
DOI:10.1021/ol0492795
日期:2004.6.1
[reaction: see text] Racemic homoallylicalcohols have been synthesized by palladium-catalyzed three-component coupling of an arylboronic acid, an allene, and an aldehyde.
[反应:见正文]外消旋均烯丙基醇是通过钯催化的芳基硼酸,丙二烯和醛的三组分偶联而合成的。
Diastereocontrol in the Synthesis of 2,3,4-Trisubstituted Pyrrolidines and Tetrahydrofurans via a Palladium(II)-Catalyzed Three-Component Coupling Reaction
作者:Helena Malinakova、Sandeep Raikar、Benoy Pal
DOI:10.1055/s-0031-1290969
日期:2012.7
The synthesis of trisubstituted pyrrolidines and tetrahydrofurans from boronic acids, allenes, and imines or aldehydes via a five- and a three-step protocol, respectively, is described. The assignment of the relative stereochemistry in the pyrrolidines and tetrahydrofurans confirmed the mechanistically significant stereochemical divergence of the palladium-catalyzed three-component coupling reaction. The methodology is applicable to the preparation of combinatorial libraries of pyrrolidines related to pharmaceutical agents and bioactive natural products.