Li G, Bao G, Zhu G, Li Y, Huang L, Sun W, Hong L, Wang R. Regio- and stereospecific Friedel–Crafts alkylation of indoles with spiro-epoxyoxindoles.
Org Biomol Chem 2018;
16:3655-3661. [DOI:
10.1039/c8ob00861b]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient strategy for the regio- and stereospecific Friedel–Crafts alkylation of indoles with spiro-epoxyoxindoles has been developed in the mixed solvents of HFIP/H2O (1 : 9) without the use of catalysts.
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