Copper salts, such as CuCl, CuI, CuCl 2 and Cu(OTf) 2 , were used to catalyze the intramolecular hydroamination of allenylamines to provide the corresponding 3-pyrrolines or 2-alkenylpyrrolidines.Leave this area blank for abstract info.

Ketones and aldehydes were effectively reduced by the reaction with CaH 2 and R 3 SiCl in the presence of a catalytic amount of ZnCl 2 . In the absence of the carbonyl substrate, the reagent reduced R 3 SiCl to the corresponding hydrosilane under mild reaction conditions. Leave this area blank for abstract info.

The structure-activity relationship and behavior of N,N-dialkylimidazolium salts as a phase transfer and/or ion exchange catalyst in a liquid-liquid phase system was investigated for various reactions.Leave this area blank for abstract info.

Pyrrole derivatives R 0120Copper-Catalyzed Intramolecular Hydroamination of Allenylamines to 3-Pyrrolines or 2-Alkenylpyrrolidines. -Cu(O-Tf) 2 is used as an optimal catalyst for the intramolecular hydroamination of α-allenylamines and γ-allenylamines. Investigations with substrate (Ia) reveal that CuCl, CuBr, CuI and CuCl2 are equally efficient. -(TSUHAKO, A.; OIKAWA, D.; SAKAI, K.; OKAMOTO*, S.; Tetrahedron Lett. 49 (2008) 46, 6529-6532; Dep. Mater. Life Chem., Kanagawa Univ., Kanagawa, Yokohama 221, Japan; Eng.) -Mais 08-136

Reduction O 0220Carbonyl Reduction with CaH2 and R3SiCl Catalyzed by ZnCl2. -The system Me 3 SiCl-CaH 2 smoothly reduces a wide range of aromatic or aliphatic carbonyl compounds in the presence of catalytic amounts of ZnCl2 to afford the alcohols (II) in good yields. -(TSUHAKO, A.; HE, J.-Q.; MIHARA, M.; SAINO, N.; OKAMOTO*, S.; Tetrahedron Lett. 48 (2007) 52, 9120-9123; Dep. Mater. Life Chem., Kanagawa Univ., Kanagawa, Yokohama 221, Japan; Eng.) -Mischke 15-038