Addition of Dinitrogen Tetroxide to Camphene and trans-Stibene; the Effect of Oxygen
作者:Travis E. Stevens
DOI:10.1021/ja01523a029
日期:1959.7
Stereochemistry of Addition of Dinitrogen Tetroxide to cis- and trans-Stilbenes
作者:H. Shechter、J. J. Gardikes、A. H. Pagano
DOI:10.1021/ja01529a042
日期:1959.10
Asymmetric nitroaldol reaction catalyzed by copper–diamine complexes: selective construction of two contiguous stereogenic centers
作者:Rafał Kowalczyk、Jacek Skarżewski
DOI:10.1016/j.tetasy.2009.10.001
日期:2009.11
Chiral copper(II) complexes of secondary bisamines derived from 1,2-diaminocyclohexane were successfully used in the diastereoselective nitroaldol reaction. The reactions were carried out in the presence of 10 mol % of the Cu(II) complex and 7.7 mol % of i-Pr2NEt in 2-propanol at -30 degrees C. Good to excellent yields, enantioselectivities of up to 99%, and moderate to excellent diastereoselectivities were obtained for both aromatic or aliphatic aldehydes and various prochiral nitrocompounds forming the corresponding beta-nitroalcohols with two contiguous stereocenters. (C) 2009 Elsevier Ltd. All rights reserved.
Antibody-Catalyzed Retro-Aldol Reaction
作者:Mark E. Flanagan、John R. Jacobsen、Elizabeth Sweet、Peter G. Schultz