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One-pot synthesis of indoles and quinolinones from ortho-tosylaminophenyl-substituted para-quinone methides†
Junwei Wang,Xiang Pan,Quanjin Rong,Lei Zhao,Lin Zhao,Weichen Dai,Kun Zhao,Lihong Hu
RSC Advances Pub Date : 09/10/2020 00:00:00 , DOI:10.1039/D0RA05497F
Abstract

A facile one-pot synthesis has been developed through alkylation/acylation of ortho-tosylaminophenyl-substituted para-quinone methides followed by an intramolecular 1,6-conjugate addition and oxidation sequence. This cascade reaction occurs readily in good yield (up to 95%), providing a divergent synthetic approach to structurally diverse 2,3-disubstituted indoles and 3,4-diaryl-substituted quinolinones.

Graphical abstract: One-pot synthesis of indoles and quinolinones from ortho-tosylaminophenyl-substituted para-quinone methides
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