| abstract |
1,211,589. Enantiomer isolation. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 May, 1969 [6 Aug., 1968], No. 37523/68. Heading C2C. An enantiomer present in excess in a partially resolved mixture is isolated in a substantially optically pure form by interacting the mixture with a crystallization solvent in the presence of a solubilizing agent, and then recovering the enantiomer from the solution obtained. The process may be applied to one 1-alkylamino-3- aryloxy - 2 - propanols, 6 - substituted-2,3,5,6- tetrahydroimidazo - (2,1-b] - thiazoles, α- methylbenzylamine amides, α - ethylphenylacetic acid amides and halogenated biphenyloxypropionic acids. |