A convenient regioselective synthesis of pyrano[3,2-b]acridones involving nucleophilic addition to benzyne
作者:Mónika Rudas、Miklós Nyerges、László Tőke、Béla Pete、Paul W. Groundwater
DOI:10.1016/s0040-4039(99)01424-0
日期:1999.9
Acridone 8 was prepared by the nucleophilic addition of aniline 4 to benzyne 5. Hydrolysis of the eater group, followed by cyclisation gave the acridone 8, which was subsequently converted to the pyrano[3,2-b]acridin-4-ones 11 and 17. (C) 1999 Elsevier Science Ltd. All rights reserved.