Histidine and deuterium labelled histidine by asymmetric catalytic reduction with gaseous H2 or D2; the role of strong non-coordinating acids
作者:E. Cesarotti、I. Rimoldi、D. Zerla、G. Aldini
DOI:10.1016/j.tetasy.2007.12.013
日期:2008.2
An efficient and convenient route for the preparation of natural and unnatural histidine by asymmetric hydrogenation with rhodium-phosphine complexes is described. The reductions were performed in the presence of HBF(4) to generate an essential imidazolyl cation. Stereoselective incorporation of D(2) in the alpha,beta-positions was obtained by catalytic deuteration in the presence of MeOD. (c) 2008 Elsevier Ltd. All rights reserved.