Synthesis and Cyclodehydration of Hydroxyphenols: A New Stereoselective Approach to 3-Aryl-2,3-dihydrobenzofurans
作者:Ferruccio Bertolini、Paolo Crotti、Valeria Di Bussolo、Franco Macchia、Mauro Pineschi
DOI:10.1021/jo070316q
日期:2007.9.1
A novel and simple method for the stereoselective synthesis of substituted 3-aryl-2,3-dihydrobenzofurans by intramolecular cyclization of hydroxyphenols is described. The stereoselective ortho-C-alkylation of phenols allows a novel and stereoselective access to a diverse array of polyfunctionalized products containing a diarylmethane stereogenic center without the need for time-consuming protection−deprotection
stereoselective direct carbon-carbon coupling of readily available aryl borates with N-protected aryl aziridines provides a method for the synthesis of new 2-(o-hydroxyaryl)-2-aryl ethylamines which can be used, in a novel annulation sequence, to give stereodefined substituted 3-aryl indolines. [reaction: see text]
RED PHOSPHORESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
申请人:Park Chun Gun
公开号:US20090085476A1
公开(公告)日:2009-04-02
Disclosed herein is a red phosphorescent compound represented by Formula 1 below:
wherein
Further disclosed herein is an organic electroluminescent (EL) device using the red phosphorescent compound.