A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 894493-95-9, Name is (1S,2S)-N1,N1-Dimethylcyclohexane-1,2-diamine, molecular formula is C8H18N2. In a Article£¬once mentioned of 894493-95-9, name: (1S,2S)-N1,N1-Dimethylcyclohexane-1,2-diamine
Enantioselective cyanosilylation of aldehydes catalysed by a diastereomeric mixture of atropisomeric thioureas
New bifunctional atropisomeric thioureas 1 were synthesised and tested as both a mixture of diastereomers (aR/aS)-(R,R)-1 and as single diastereomers (aR)-(R,R)-1 and (aR)-(S,S)-1, in the organocatalysed, enantioselective, cyanosilylation of a range of aldehydes (aromatic and aliphatic). Moderate enantiomeric excesses (up to 69% ee) and quantitative yields were obtained. The best results were achieved using a mixture of thiourea diastereomers (aR/aS)-(R,R)-1 instead of the single diastereomers alone.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.name: (1S,2S)-N1,N1-Dimethylcyclohexane-1,2-diamine, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 894493-95-9, in my other articles.
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare