[EN] N-SUBSTITUTED PIPERIDINE AND PIPERAZINE DERIVATIVES<br/>[FR] DERIVES DE PIPERIDINE ET DE PIPERAZINE N-SUBSTITUES
申请人:WARNER LAMBERT CO
公开号:WO2005066165A1
公开(公告)日:2005-07-21
This invention relates to compounds of the formula 1 wherein R1, R2, R7, R8, R9, U, V, Z, A, W, X, M, E, L, T and D are defined as in the specification, pharmaceutical compositions containing them and their use in the treatment of central nervous system and other disorders.
Rhodium-catalyzed C7-alkylation of indolines with maleimides
作者:Changduo Pan、Yun Wang、Chao Wu、Jin-Tao Yu
DOI:10.1039/c7ob03039h
日期:——
A rhodium(III)-catalyzed direct cross-coupling reaction of indolines with maleimides via C–H bond activation was developed. This protocol displays good functional group tolerance, which offers a novel approach to access C7 modified indoline derivatives including maleimide analogues.
An efficient method for C7‐position‐selective alkenylation of N‐substituted indolines with alkenes is reported. Various 7‐alkenylindolines were obtained in moderate to excellent yields in air in the presence of catalytic amounts of [Cp*IrCl2]2, AgOTf, and Cu(OAc)2. The protocol relies on the use of a carbonyl or carbamoyl group on the nitrogen atom of indoline as a directing group and is potentially
Rhodium(III)-catalyzed direct C-7 sulfonamidation and amination of indolines with arylsulfonamides and trifluoroacetamide
作者:Yaqun Dong、Song Sun、Jin-tao Yu、Jiang Cheng
DOI:10.1016/j.tetlet.2019.03.069
日期:2019.5
A rhodium-catalyzeddirect C–H sulfonamidation and amidation of C-7 position of indolines by simple and commercially available arylsulfonamides and trifluoroacetamide has been developed, affording a series of N-arylsulfonamides and N-aryltrifluoroacetamides in moderate to excellent yields, respectively. Notably, this catalytic system is highly convenient on mmol scale.
An efficient rhodium(III)‐catalyzed direct C7 alkynylation of indoline CH bonds with the alkynylated hypervalent iodine reagents has been developed. This reaction proceeds smoothly undermildconditions over a wide structural scope with high site‐selectivity and excellent functional‐group tolerance. N‐Acetyl as well as other N‐acyls served as effective directing groups (DG). This procedure allows