A novel reaction of 7,7,8,8-tetracyanoquinodimethane (TCNQ): charge-transfer chromophores by [2 + 2] cycloaddition with alkynes

Literature Information

Publication Date 2007-10-24
DOI 10.1039/B713683H
Impact Factor 6.222
Authors

Milan Kivala, Corinne Boudon, Jean-Paul Gisselbrecht, Paul Seiler, Maurice Gross, François Diederich


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Abstract

A series of donor–acceptor molecules, featuring intense low-energy intramolecular charge-transfer bands, was prepared by regioselective [2 + 2] cycloaddition between 7,7,8,8-tetracyanoquinodimethane (TCNQ) and N,N-dialkylanilino-substituted (DAA-substituted) alkynes, followed by ring opening of the initially formed cyclobutenes.

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