Asymmetric aerobic oxidation of α-hydroxy acid derivatives by C 4-Symmetric, Vanadate-Centered, Tetrakisvanadyl (V) clusters derived from N-Salicylidene-α- …

CT Chen, S Bettigeri, SS Weng, VD Pawar…

文献索引：Chen, Chien-Tien; Bettigeri, Sampada; Weng, Shiue-Shien; Pawar, Vijay D.; Lin, Ya-Hui; Liu, Cheng-Yuan; Lee, Way-Zen Journal of Organic Chemistry, 2007 , vol. 72, # 22 p. 8175 - 8185

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被引用次数: 39

摘要

A series of chiral vanadyl (V) methoxides bearing 3-t-butyl-5-substituted N-salicylene-l- valinate and lt-leucinate as chiral auxiliaries has been prepared. In all cases except the 3, 5- di-t-butyl analogue, they exist as monomers both in solution and in the single crystal state. In the case of the 3, 5-di-t-butyl analogue, the architectural nature of the vanadyl (V) complex highly depends on the base used during the complex formation event. A pentanuclear C 4 ...