15785-52-1Relevant articles and documents
METHOD OF PRODUCING OPTICALLY ACTIVE AMINO ACID DERIVATIVE
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Page/Page column 13-14, (2011/04/18)
The present application relates to a method for producing an optically active α-amino acid derivative, comprising steps of reacting an α-haloester derivative represented by the general formula (1): of which alcohol part of the ester group is an optically active alcohol derivative, with an amine compound; then deprotecting the obtained compound; further carrying out an ester exchange reaction. According to the present invention method, it is possible to easily produce an optically active α-amino acid ester derivative which is useful as an intermediate for drugs with high selectivity.
Phosphinoferrocenylaminophosphines as novel and practical ligands for asymmetric catalysis
Boaz, Neil W.,Debenham, Sheryl D.,Mackenzie, Elaine B.,Large, Shannon E.
, p. 2421 - 2424 (2007/10/03)
(Matrix Presented) A new series of ligands with a novel phosphine-aminophosphine ligation design as depicted in structure 1 has been prepared on a ferrocenylethyl backbone. These BoPhoz ligands of structure 2 have afforded exceedingly high activity and enantioselectivity in the rhodium-catalyzed asymmetric hydrogenation of dehydro-α-amino acid derivatives, itaconic acids, and α-ketoesters. These air-stable ligands are readily prepared from cost-effective and non-pyrophoric intermediates.
A convenient synthesis of (L)-β-cyclopropylalanine
Hamon, Christian,Rawlings, Bernard J.
, p. 1109 - 1115 (2007/10/03)
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