作者:Rammohan Devulapally、Yung-Son Hon
DOI:10.1016/j.tetlet.2011.02.103
日期:2011.6
The first total synthesis of tetrahydrobenzo[a]anthraquinone natural product (+/-)-zenkequinone B (1) is reported. The key step involves the TiCl(4)-promoted intramolecular cyclization of 4-aryl-2-hydroxybutanal diethyl acetal 4 to give compound 3. The total synthesis of (+/-)-zenekequinone B (1) has been accomplished in five steps from readily available 2-(chloromethyl)-9,10-dimethoxyanthracene (5) in 40.3% overall yield. (C) 2011 Published by Elsevier Ltd.