Enantioselective (3+2) cycloaddition <i>via</i> N-heterocyclic carbene-catalyzed addition of homoenolates to cyclic <i>N</i>-sulfonyl trifluoromethylated ketimines: synthesis of fused N-heterocycle γ-lactams
作者:Zhen-Zhen Zhang、Yongna Zhang、Hui-Xin Duan、Zhuo-Fei Deng、You-Qing Wang
DOI:10.1039/c9cc09269b
日期:——
An enantioselective (3+2) cycloaddition of enals and cyclic N-sulfonyl trifluoromethyl ketimines via N-heterocyclic carbene-catalyzed homoenolateaddition is described. This reaction can efficiently construct fused N-heterocycle γ-lactams bearing two adjacent chiral centers with >20 : 1 dr and 94-99% ee, with one chiral center as a trifluoromethylated α-tetrasubstituted carbon stereocenter.
[DE] METALLKOMPLEXE<br/>[EN] METAL COMPLEXES<br/>[FR] COMPLEXES METALLIQUES
申请人:COVION ORGANIC SEMICONDUCTORS
公开号:WO2004081017A1
公开(公告)日:2004-09-23
Die vorliegende Erfindung beschreibt neuartige Metallkomplexe. Derartige Verbindungen sind als Wirkkomponenten (= Funktionsmaterialien) in einer Reihe von verschiedenartigen Anwendungen, die im weitesten Sinne der Elektronikindustrie zugerechnet werden können, einsetzbar. Die erfindungsgemäßen Verbindungen werden durch die Struktur 1 und die Formeln (1) bis (82) beschrieben.
The present invention relates to new types of metal complexes. Such compounds can be used as active components (=functional materials) in a series of different types of applications which can be classed within the electronics industry in the widest sense. The inventive compounds are described by the structure 1 and the formulae (1) to (60).
The present invention relates to new types of metal complexes. Such compounds can be used as active components (=functional materials) in a series of different types of applications which can be classed within the electronics industry in the widest sense.
The inventive compounds are described by the structure 1 and the formulae (1) to (60).