A novel method for the reduction of imines using the system silane/MoO2Cl2
摘要:
A novel catalytic system, silane/MoO2Cl2 (10 mol %), for the reduction of imines in excellent to moderate yields and chemoselectivity was designed. These results extend the scope of the use of MoO2Cl2 as an effective catalyst for reduction reactions. (c) 2005 Elsevier Ltd. All rights reserved.
Reactions of N-aryl nitrogen oxides. 1. Selective ortho chlorination in the reactions of aryl nitrones and amine oxides with thionyl chloride or phosgene
AbstractA highly diastereoselective catalyst-free multicomponent Mannichreaction between cyclohexanone, aromatic aldehydes and amines in cyclohexane is described. The doubleMannichreaction of diamines and two equivalents of aldehydes and cyclohexanone gave the novel bis(β-aminocarbonyl) compounds. Reactions proceeded in good to high yields with an excellent diastereoselectivity. The best selectivity