5 helicenes by tandem radical cyclisation

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).


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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.

Item Type: Article
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Keywords: photochemical-synthesis, condensed thiophenes, carbenoid couplings, anion radicals, toddaquinoline, photocyclization, hexahelicenes, catalysis, helicenes, additions
Subjects: Q Science
Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 19758
Date Deposited: 17 Feb 2006
Last Modified: 06 Aug 2015 02:19
URI: http://eprints.soton.ac.uk/id/eprint/19758

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