Ultrasound assisted one-pot synthesis of benzo-fused indole-4,9-dinones from 1,4-naphthoquinone and α-aminoacetals
摘要:
A one-pot synthesis of benzo[f]indole-4,9-diones from 1,4-naphthoquinone with alpha-aminoacetals has been developed. This method provides a straightforward synthesis of benzo[f]indole-4,9-diones via intramolecular nucleophilic attack of aminoquinones to aldehydes under mild reaction conditions. The detailed mechanism was also investigated. (C) 2016 Elsevier Ltd. All rights reserved.