The intramolecular cyclisation of aryl radicals onto a pyrrole is studied. The cyclisation allows the synthesis of either the spiropyrrolidinyloxindole or the pyrrolo[3,2-c]quinoline skeleton depending on the nature of the protecting group at the N-pyrrole atom. The regiochemistry of the cyclisation is not affected by the substituents on the benzene ring. Some limitations on the utility of tosylmethyl-isocyanide in pyrrole synthesis are also reported. (C) 2002 Elsevier Science Ltd. All rights reserved.
The present invention relates to organic electroluminescent devices which comprise aromatic ring systems with two or three condensed rings as emitter materials, and to their possible uses.
[DE] EMITTER MIT KONDENSIERTEM RINGSYSTEM<br/>[EN] EMITTER HAVING A CONDENSED RING SYSTEM<br/>[FR] ÉMETTEUR COMPRENANT UN SYSTÈME CYCLIQUE CONDENSÉ
申请人:MERCK PATENT GMBH
公开号:WO2014094965A2
公开(公告)日:2014-06-26
Die vorliegende Erfindung betrifft organische Elektrolumineszenzvorrichtungen, die aromatische Ringsysteme mit zwei oder drei kondensierten Ringen als Emittermaterialien umfassen, sowie deren mögliche Verwendungen.
Aryl radical cyclisation onto pyrroles
作者:Carmen Escolano、Keith Jones
DOI:10.1016/s0040-4020(02)00007-8
日期:2002.2
The intramolecular cyclisation of aryl radicals onto a pyrrole is studied. The cyclisation allows the synthesis of either the spiropyrrolidinyloxindole or the pyrrolo[3,2-c]quinoline skeleton depending on the nature of the protecting group at the N-pyrrole atom. The regiochemistry of the cyclisation is not affected by the substituents on the benzene ring. Some limitations on the utility of tosylmethyl-isocyanide in pyrrole synthesis are also reported. (C) 2002 Elsevier Science Ltd. All rights reserved.
POPOV I. I.; NAREZHNAYA V. N.; ZUBENKO A. A., XIMIYA GETEROTSIKL. SOEDIN., 1978, HO 8, 1104-1107