5 Helicenes by iterative radical cyclisations to arenes

Harrowven, D. C., Nunn, M. I. T. and Fenwick, D. R. (2002) 5 Helicenes by iterative radical cyclisations to arenes Tetrahedron Letters, 43, (17), pp. 3189-3191. (doi:10.1016/S0040-4039(02)00506-3).


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The paper describes a synthesis of 1,2,3,12,13,14-hexamethoxy[5]helicene 1. The synthesis features two sp(2)-sp(2) bond forming reactions, each involving a 6-exo/endo-trig cyclisation of an aryl radical intermediate to an arene.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/S0040-4039(02)00506-3
ISSNs: 0040-4039 (print)
Keywords: helicenes, radicals and radical reactions, cyclisation, polycyclic aromatic compoundsipso substitution-reactions, aryl migration, biaryls, carbon, cyclization, toddaquinoline, silicon, tin, methylenecycloalkanes, regiochemistry
ePrint ID: 19760
Date :
Date Event
22 April 2002Published
Date Deposited: 17 Feb 2006
Last Modified: 16 Apr 2017 23:01
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/19760

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