[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.
reaction by a concerted nucleophilic aromatic substitution. This peculiar reactivity for a carbene was compared to possibly competitive known reactions of stable carbenes with carbonyl compounds, and the reaction was found to be under thermodynamic control. The reported method of generation of N‐phenyl pyrid‐2‐ylidenes and their reactivity with carbonyl compounds unlock new perspectives in organic
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.