In an article, published in an article, once mentioned the application of 23190-16-1, Name is (1R,2S)-(?)-2-Amino-1,2-diphenylethanol,molecular formula is C6H5CH(NH2)CH(C6H5)OH, is a conventional compound. this article was the specific content is as follows.HPLC of Formula: C6H5CH(NH2)CH(C6H5)OH
Fine-tunable organocatalysts bearing multiple hydrogen-bonding donors for construction of adjacent quaternary and tertiary stereocenters via a michael reaction
The fine-tunable bifunctional amine/thiourea organocatalysts, relying on multipe hydrogen-bonding donors was investigated. A representative set of aryl and alkyl substituted nitroolefins were surveyed under the optimal experimental conditions. The trisubstituted carbon nucleophiles were examined with a 10 mol% of catalyst. The significant role of the multiple hydrogen-bonding donors played in the system was demonstrated through the control experiments using less bulky methylated (1R,2R,1’R,2’R)-II-E, (1R,2R,S)-II-F, and (1R,2R,R)-II-G as the catalyst under the optimized reaction condition. The fine tunable amine/thiourea organocatalysts, relying on multiple hydrogen-binding donors, showed excellent activity, diastereoselectivity, enantioselectivity, and structural scope in asymmetric Michael addition of alpha-substituted beta-ketoesters to nitroolefins.
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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare