Original synthesis of 2-substituted-4,11-dimethoxy-1-(phenylsulfonyl)-2,3-dihydro-1H-naphtho[2,3-f]indole-5,10-diones using TDAE and Cu-catalyzed reaction strategy
摘要:
We report herein an original and rapid synthesis of 2-substituted-4,11-dimethoxy-1-(phenylsulfonyl)-2,3-dihydro-1H-naphtho[2,3-f]indole-5,10-diones by TDAE mediated synthesis of N-benzylsulfonamides followed by an intramolecular N-arylation using Cu-catalyzed system. (C) 2011 Elsevier Ltd. All rights reserved.
β-Hydroxylation of anthraquinone derivatives with benzaldehyde oxime as a source of hydroxyl group
作者:Alexander S. Tikhomirov、Ivan V. Ivanov、Alexander M. Korolev、Andrey E. Shchekotikhin
DOI:10.1016/j.tet.2019.130623
日期:2019.10
anthraquinone derivatives that can be used during late stages of modifications. The scheme is based on the Miller-Loudon-Snyder reaction, which uses benzaldoxime as a source of a hydroxyl group. The influence of different leaving groups and neighboring substituents at the anthraquinone core on reaction rate and yield has been evaluated. A series of β-hydroxyanthraquinone derivatives was synthesized