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 freeradical conditions, results in selenosulfonylation with concomitant CC bond formation, to give cyclised alkyl or vinylsulfones 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