Xc. Lin et al., A mild new procedure for production, cyclization and trapping of amidyl radicals: application to a formal total synthesis of peduncularine, TETRAHEDR L, 41(14), 2000, pp. 2333-2337
Treatment of an olefinic hydroxamic acid with tert-butylsulfinyl chloride a
nd Hunig's base from -50 degrees C to room temperature in the presence of a
radical trap such as diphenyl diselenide, diphenyl disulfide or TEMPO affo
rds a functionalized product derived from an amidyl radical cyclization. Th
e methodology has been used in a formal total synthesis of the 6-azabicyclo
[3.2.1] octane-containing indole alkaloid peduncularine. (C) 2000 Elsevier
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