Ab. Terentev et al., RADICAL CYCLIZATION OF ALLYL ALPHA-BROMOCARBOXYLATES INTO GAMMA-BUTYROLACTONES - EFFECT OF THE ESTER STRUCTURE ON THE CYCLIZATION, Russian chemical bulletin, 46(12), 1997, pp. 2096-2098
Allyl dibromoacetate, allyl alpha-bromopropionate, and allyl phenylbro
moacetate undergo cyclization in benzene in the presence of increased
concentration of Fe(CO)(5)-DMF as the initiating system to give the co
rresponding bromo-substituted butyrolactones.