New RuCl2(benzimidazole)(arene) complexes have been prepared. Upon reaction with 1,1-diphenylprop-2-ynol they generate catalyst precursors which perform the cycloisomerization of diallyltosylamide into 3-methyl-4-methylene-N-tosylpyrrolidine. The presence of N-(2,4,6-trimethyl-benzyl)benzimidazole as ligand leads to a subsequent isomerization and gives the 3,4-dimethyl-N-tosylpyrroline. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
C1 Inonu Univ Fen Edegiyat Fak, TR-44069 Malatya, Turkey.
Ege Univ, Dept Chem, TR-35100 Izmir, Turkey.
Univ Rennes 1, CNRS, UMR 6509, Inst Chim, F-35042 Rennes, France.