The mercury-mediated decarboxylation (Pesci reaction) of naphthoic anhydrides investigated by microwave synthesis
摘要:
The mercury-mediated decarboxylation (Pesci reaction) of several substituted naphthoic anhydrides has been investigated by microwave synthesis. A laboratory microwave reactor was found to be ideal for small-scale preparations of this slow reaction, reducing reaction times from typically four days to less than 1 h for the three-step process. The ionic reaction medium rapidly heated to high temperatures under microwave heating and could be efficiently maintained by low microwave power settings. Generation of stoichiometric CO2 was safely contained within the reaction tubes. A simplified reaction procedure has been developed. For substituted naphthoic anhydrides, H-1 NMR analysis of the naphthoate ester derivatives indicated no change in the regioisomer ratio compared to previously reported thermal values. (c) 2006 Published by Elsevier Ltd.
[EN] BICYCLIC MODULATORS OF ANDROGEN RECEPTOR FUNCTION<br/>[FR] MODULATEURS BICYCLIQUES DE LA FONCTION DU RECEPTEUR ANDROGENE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2003011824A1
公开(公告)日:2003-02-13
The invention provides compounds of the formula I [INSERT CHEMICAL STRUCTURE HERE]wherein the substitutents are as described herein. Further provided are methods of using such compounds for the treatment of nuclear hormone receptor-associated conditions, such as age related diseases, for example sarcopenia, and also provided are pharmaceutical compositions containing such compounds.