Chemistry–A European Journal

Synthesis of Metal–(Pentadentate??Salen) Complexes: Asymmetric Epoxidation with Aqueous Hydrogen Peroxide and Asymmetric Cyclopropanation (salenH2: N, N′ …

H Shitama, T Katsuki

文献索引：Shitama, Hiroaki; Katsuki, Tsutomu Chemistry - A European Journal, 2007 , vol. 13, # 17 p. 4849 - 4858

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被引用次数: 43

摘要

Abstract It is known that the rates and stereochemical outcomes of epoxidations and cyclopropanations using a metallosalen (salenH 2: N, N′-bis (salicylidene) ethylene-1, 2- diamine) complex as catalyst are affected by a trans effect of the apical ligand of the complex. By taking into consideration this trans effect, we have synthesized optically active pentadentate salen ligands bearing an imidazole or pyridine derivative as the fifth ...