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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Original Publication URL: http://dx.doi.org/10.1016/S0040-4039(02)01720-3
Description/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.
| Item Type: | Article |
|---|---|
| Related URLs: | |
| 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 |
| Item ID: | 19758 |
| Date Deposited: | 17 Feb 2006 |
| Last Modified: | 01 Apr 2012 01:03 |
| Contributors: | Harrowven, D. C. (Author) Nunn, M. I. T. (Author) Fenwick, D. R. (Author) |
| Date: | 7 October 2002 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/19758 |
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