[EN] SPIRO-OXAZINES, INDOLINONES AND PREPARATION THEREOF<br/>[FR] SPIRO-OXAZINES, INDOLINONES ET LEUR PRÉPARATION
申请人:COUNCIL SCIENT IND RES
公开号:WO2014184808A1
公开(公告)日:2014-11-20
The present invention relates to novel spiro-oxazine analogues of Formula-I and Indolinone compounds of Formula-II or positional isomers, or stereoisomers, or derivatives, or pharmaceutically acceptable salt thereof. Formula-I Formula-II Further the invention provides transition- metal free multicomponent reaction (MCR) process for the preparation of said compounds of Formula-I and II using aryne precursor, N-substituted isatin and N-heteroaromatic compound as the nucleophile,under mild condition leading to formation of desired complex of spiro-oxazine analogues (I) and indolinone analogues (II) in high yield and selectivity.
SPIRO-OXAZINES, INDOLINONES AND PREPARATION THEREOF
申请人:COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
公开号:US20160115179A1
公开(公告)日:2016-04-28
The present invention relates to novel spiro-oxazine analogues of Formula-I and Indolinone compounds of Formula-II or positional isomers, or stereoisomers, or derivatives, or pharmaceutically acceptable salt thereof. Formula-I Formula-II Further the invention provides transition-metal free multicomponent reaction (MCR) process for the preparation of said compounds of Formula-I and II using aryne precursor, N-substituted isatin and N-heteroaromatic compound as the nucleophile, under mild condition leading to formation of desired complex of spiro-oxazine analogues (I) and indolinone analogues (II) in high yield and selectivity.
Transition-Metal-Free Multicomponent Reactions Involving Arynes, N-Heterocycles, and Isatins
作者:Anup Bhunia、Tony Roy、Pradip Pachfule、Pattuparambil R. Rajamohanan、Akkattu T. Biju
DOI:10.1002/anie.201304278
日期:2013.9.16
Mix and match: With isoquinoline as the nucleophilic trigger, multicomponentreactions afforded spirooxazino isoquinoline derivatives, proceeding through 1,4‐dipolar intermediates. The use of pyridine as a nucleophile furnished indolin‐2‐one derivatives, with the reaction likely proceeding through a pyridylidene intermediate.