34218-57-0Relevant academic research and scientific papers
A simple primary-tertiary diamine-Bronsted acid catalyst for asymmetric direct aldol reactions of linear aliphatic ketones
Luo, Sanzhong,Xu, Hui,Li, Jiuyuan,Zhang, Long,Cheng, Jin-Pei
, p. 3074 - 3075 (2007)
Compared with the well-explored enamine catalysis with secondary amines, the development of efficient enamine-based primary amine catalysts has remained as an elusive goal until recently. We present herein that a simple chiral primary-tertiary diamine 1d
ASYMMETRIC UREA COMPOUND AND PROCESS FOR PRODUCING ASYMMETRIC COMPOUND BY ASYMMETRIC CONJUGATE ADDITION REACTION WITH THE SAME AS CATALYST
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Page/Page column 16, (2008/06/13)
The present invention relates to a production method of asymmetric compound (IV) which includes conjugately adding nucleophilic reagent (III) to compound (II) in the presence of asymmetric urea compound (I). The present invention provides a non-metallic a
An efficient method for the preparation of N,N-disubstituted 1,2-diamines
Mitchell,Finney
, p. 8431 - 8434 (2007/10/03)
C2-Symmetric 1,2-diamines are useful precursors to numerous reagents used in asymmetric synthesis and catalysis. We report here an efficient protocol for converting the two most commonly used trans-1,2-diamines to N,N-disubstituted derivatives, a transformation that simplifies the preparation of non-C2-symmetric diamines. Central to the method is the high-yielding conversion of the diamines to the corresponding monoacetylated derivatives via imidazoline intermediates. (C) 2000 Published by Elsevier Science Ltd.
