S. Poigny et al., AN EXPEDITIOUS SYNTHESIS OF CHAETOMELLIC ANHYDRIDE-A AND ANHYDRIDE-B,AND ANALOGS, Journal of the Chemical Society. Perkin transactions. I, (15), 1997, pp. 2175-2177
Chaetomellic anhydrides A and B and analogues have been prepared in on
e step by Barton radical decarboxylation; namely, irradiation of thioh
ydroxamic esters derived from carboxylic acids, in the presence of cit
raconic anhydride.