Study of the mechanism of optical resolutions via diastereoisomeric salt formation part 4 - The role of the crystallization temperature in optical resolution of pipecolic acid xylidides

Katalin Nemák, Dávid Kozma, Elemér Fogassy

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Abstract

The role of the crystallization temperature was investigated during the optical resolutions of some pipecolic acid xylides by 2R,3R-tartaric acid and O,O-dibenzoyl-2R,3R-tartaric acid. In 4 cases from 5 the temperature optimum of the crystallization was found between 45-50 °C, which is much higher than the usual crystallization temperature. A few trial resolutions may be enough to determine the temperature optimum of the crystallization graphically.

Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume276-277
DOIs
Publication statusPublished - Jan 1 1996

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ASJC Scopus subject areas

  • Condensed Matter Physics

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