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5 helicenes by tandem radical cyclisation

5 helicenes by tandem radical cyclisation
5 helicenes by tandem radical cyclisation
A new and rapid approach to [5]helicenes is described. A central feature is the use of a sequential, non-reducing radical cyclisation reaction of (Z,Z)-1,4-bis(2-iodostyryl)benzene derivatives, viz. 3-->1, mediated by tributyltin hydride.
photochemical-synthesis, condensed thiophenes, carbenoid couplings, anion radicals, toddaquinoline, photocyclization, hexahelicenes, catalysis, helicenes, additions
0040-4039
7345-7347
Harrowven, D. C.
1c293b83-4291-4301-a7a4-167d6a146d01
Nunn, M. I. T.
b8208d55-5e1b-45fb-a1cc-8e1df72d6b2d
Fenwick, D. R.
6021f20e-6a22-41c6-bc2d-67c4ea2f8d59
Harrowven, D. C.
1c293b83-4291-4301-a7a4-167d6a146d01
Nunn, M. I. T.
b8208d55-5e1b-45fb-a1cc-8e1df72d6b2d
Fenwick, D. R.
6021f20e-6a22-41c6-bc2d-67c4ea2f8d59

Harrowven, D. C., Nunn, M. I. T. and Fenwick, D. R. (2002) 5 helicenes by tandem radical cyclisation. Tetrahedron Letters, 43 (41), 7345-7347. (doi:10.1016/S0040-4039(02)01720-3).

Record type: Article

Abstract

A new and rapid approach to [5]helicenes is described. A central feature is the use of a sequential, non-reducing radical cyclisation reaction of (Z,Z)-1,4-bis(2-iodostyryl)benzene derivatives, viz. 3-->1, mediated by tributyltin hydride.

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More information

Published date: 7 October 2002
Keywords: photochemical-synthesis, condensed thiophenes, carbenoid couplings, anion radicals, toddaquinoline, photocyclization, hexahelicenes, catalysis, helicenes, additions

Identifiers

Local EPrints ID: 19758
URI: http://eprints.soton.ac.uk/id/eprint/19758
ISSN: 0040-4039
PURE UUID: 87a47b07-7ba2-4339-afa1-5b2aaf4c29d5

Catalogue record

Date deposited: 17 Feb 2006
Last modified: 15 Mar 2024 06:18

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Contributors

Author: D. C. Harrowven
Author: M. I. T. Nunn
Author: D. R. Fenwick

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