A thiyl radical mediated cascade sequence for the co-cyclisation of 1,6-hexadienes with sulfur atom transfer
Harrowven, D. C., Hannam, J. C., Lucas, M. C., Newman, N. A. and Howes, P. D. (2000) A thiyl radical mediated cascade sequence for the co-cyclisation of 1,6-hexadienes with sulfur atom transfer. Tetrahedron Letters, 41, (48), 9345-9349. (doi:10.1016/S0040-4039(00)01701-9).
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The paper describes a method for effecting the co-cyclisation of 1,6-dienes with concomitant sulfur atom transfer. The key step is a cascade reaction involving the addition of a thiyl radical to an alkene, cyclisation through a chair-like transition state and termination by homolytic substitution at sulfur. It has been used to synthesise a broad range of fused thiabicyclo[3.3.0]octanes.
|Keywords:||cyclisations, photochemistry, radicals and radical reactions, sulfur heterocycleshomolytic substitution, cyclization reactions, condensed thiophenes, lactam synthesis, disulfide, dienylamides, system|
Q Science > QD Chemistry
|Divisions:||University Structure - Pre August 2011 > School of Chemistry
|Date Deposited:||15 Dec 2005|
|Last Modified:||01 Jun 2011 03:54|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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