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- W2000535191 abstract "The enantioselective synthesis of quatemary carbon centres through Michael-type alkylation of chiral imines proceeds with high enantiomeric excess with 1-phenylethylamine as auxiliary, while 2,2-dimethyl-1-phenylpropylamine was found to be completely inactive. The crystal structure of a non-reactive be based on the latter auxiliary reveals a conformation identical with that of the reactive and highly selective 1-phenylethylamine. The phenyl ring is almost perpendicular to the enamino ester plane (torsion angle C-N-C-Ph 71.8 o ). The enamino ester group is planar and is stabilized by a hydrogen bond between the imine group and the carbonyl group of the ester" @default.
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- W2000535191 date "1993-07-15" @default.
- W2000535191 modified "2023-10-06" @default.
- W2000535191 title "The asymmetric Michael process involving chiral imines: structure of (±)-p-nitrobenzyl 2-(2,2-dimethyl-1-phenylpropylamino)-1-cyclopentene-1-carboxylate" @default.
- W2000535191 doi "https://doi.org/10.1107/s0108270193000320" @default.
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