Domino Wittig-Diels Alder reaction: Synthesis of carbazole lignans

Tilve, S.G.; Torney, P.S.; Patre, R.E.; Kamat, D.P.; Srinivasan, B.R.; Zubkov, F.I.

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Domino Wittig-Diels Alder reaction: Synthesis of carbazole lignans

Tilve, S.G.; Torney, P.S.; Patre, R.E.; Kamat, D.P.; Srinivasan, B.R.; Zubkov, F.I.

Source : Tetrahedron Letters. 57(21); 2016; 2266-2268.

URI: http://dx.doi.org/10.1016/j.tetlet.2016.04.038
http://irgu.unigoa.ac.in/drs/handle/unigoa/4346

Date: 2016

Document Type: Journal article

Abstract:

A convenient two step protocol for the synthesis of carbazole lignans involving Domino Wittig reaction/Diels Alder reaction followed by aromatization with DDQ is described. The main step of this protocol involves interaction between 2- or 3-indolecarboxyaldehydes and cinnamyl 2-(triphenylphosphoranylidene)acetates.

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