Access to 3‐Methyl‐4‐methylene‐N‐tosylpyrrolidine and 3,4‐DimethylN‐tosylpyrroline by Ruthenium‐Catalyzed Cascade Cycloisomerization/Isomerization Reactions
Makaleler > Tam Makale · 2004
Yazarlar: Ismail Özdemir, Engin Çetinkaya, Bekir Çetinkaya, Metin Çiçek, David Sémeril, Christian Bruneau, Pierre H. Dixneuf
European Journal of Inorganic Chemistry, Uluslararası, Wos, 2004, cilt 2004, ss 418-422
Özet
Abstract 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‐trimethylbenzyl)benzimidazole as ligand leads to a subsequent isomerization and gives the 3,4‐dimethyl‐N‐tosylpyrroline. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)