Helicenes: The Photochemical Ring-Closure of Polymer-Supported 1,2-Diarylethylenes: Hexahelicene- and benzo[c]phenanthrene-2-carbaldehyde

Authors

  • Jean-Marie Vanest Service de Chimie Organique, Faculté des Sciences Université Libre de Bruxelles 50, avenue F.-D.-Roosevelt B-1050 Bruxelles, Belgium
  • Mohamed Gorsane Service de Chimie Organique, Faculté des Sciences Université Libre de Bruxelles 50, avenue F.-D.-Roosevelt B-1050 Bruxelles, Belgium
  • Valery Libert Service de Chimie Organique, Faculté des Sciences Université Libre de Bruxelles 50, avenue F.-D.-Roosevelt B-1050 Bruxelles, Belgium
  • Jacques Pecher Service de Chimie Organique, Faculté des Sciences Université Libre de Bruxelles 50, avenue F.-D.-Roosevelt B-1050 Bruxelles, Belgium
  • Richard H. Martin Service de Chimie Organique, Faculté des Sciences Université Libre de Bruxelles 50, avenue F.-D.-Roosevelt B-1050 Bruxelles, Belgium

DOI:

https://doi.org/10.2533/chimia.1975.343

Abstract

Photolysis of a suspension (C6H6;I2) of 1-(4-formylphenyl)-2-(2-benzo[c]phenanthryl)ethylene and 1-(4-formylphenyl)-2-(2-naphthyl)ethylene anchored on a styrene-divinylbenzene copolymer (1a and 1b), followed by hydrolysis, yielded hexahelicene-2-carbaldehyde (2a) and benzo[c]phenanthrene-2-carbaldehyde (2b) respectively. The photochemical ring-closure leading to 2b was also observed when the substituted polymer 1b was irradiated in the absence of a solvent.

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Published

1975-08-31

Issue

Vol. 29 No. 8 (1975): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1975 Jean-Marie Vanest

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
J.-M. Vanest, M. Gorsane, V. Libert, J. Pecher, R. H. Martin, Chimia 1975, 29, 343, DOI: 10.2533/chimia.1975.343.