Resolution of esters of phenylglycine with (+)-tartaric acid
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 5,p. 471-474
- https://doi.org/10.1039/p19760000471
Abstract
The methyl, ethyl, and isopropyl esters of DL-phenylglycine are resolved with 1 mol. equiv. of (+)-tartaric acid aqueous alcohols to give the D-ester hydrogen (+)-tartrate salts in up to 42% yield (or 84% based on the D-content of the DL-esters). The L-salts in the filtrates from the resolutions are racemised in ethanol containing polar co-solvents. The resolution and racemisation stages may be combined so that ethyl DL-phenylglycinate undergoes a second-order asymmetric transformation to give ethyl D-phenylglycinate hydrogen (+)-tartrate in up to 65% yield. The resolved salts are hydrolysed to D-phenylglycine in up to 90% yield.This publication has 1 reference indexed in Scilit:
- A new asymmetric transformation of α-amino-acid esters with (+)-tartaric acidJournal of the Chemical Society, Perkin Transactions 1, 1976