Radical cyclisations of dienes and enynes using phosphorus- and sulfur-centred radicals
作者:Julie E. Brumwell、Nigel S. Simpkins、Nicholas K. Terrett
DOI:10.1016/s0040-4020(01)89360-1
日期:1994.1
Reaction of a number of 1,6-diene or enyne systems with TolSO2SePh, under free radical conditions, results in selenosulfonylation with concomitant CC bond formation, to give cyclised alkyl or vinyl sulfones containing the synthetically useful phenylselenyl functionality. Similar cyclisations are possible by using Ph2PH in place of TolSO2SePh, resulting in the formation of cyclic phosphine or vinyl
自由基条件下,许多1,6-二烯或烯炔体系与TolSO 2 SePh的反应导致硒代磺酰化,并伴随形成C bondC键,从而生成含有可合成有用的苯基硒烯基官能团的环化烷基或乙烯基砜。通过使用Ph 2 PH代替TolSO 2 SePh可以进行类似的环化反应,导致形成环膦或乙烯基膦产物,尽管在这些反应中二烯底物的产率相当适中。