M. Benedetti et al., HALOGEN ATOM-TRANSFER RADICAL CYCLIZATION OF N-ALLYL-N-BENZYL-2,2-DIHALOAMIDES TO 2-PYRROLIDINONES, PROMOTED BY FE-0-FECL3 OR CUCL-TMEDA, Tetrahedron, 53(41), 1997, pp. 14031-14042
The halogen atom transfer radical cyclization of a N-allyl-N-benzyl-2,
2-dihaloamides to 2-pyrrolidinones has been carried out in high yields
under mild conditions, in a reaction promoted by CuCl-TMEDA or Fe-0-F
eCl3 in acetonitrile or N,N-dimethylformamide, respectively. (C) 1997
Elsevier Science Ltd.