preparation and investigation of triplet photosensitizers designed to be preferentially soluble in room-temperature ionic liquids are reported. Photosensitizers prepared by covalent attachment of 1-methylimidazole to aryl ketones are soluble in ionic liquids and remain in the ionic liquid layer when the solution is extracted with an organic solvent. The photosensitized isomerization of trans-β-ionol to cis-β-ionol
Generation of optical activity through solid state reaction of a racemic mixture that crystallizes in a chiral space group
作者:Miguel Garcia-Garibay、John R. Scheffer、James Trotter、Fred Wireko
DOI:10.1016/s0040-4039(00)96626-7
日期:1987.1
Because of disorder in the sec-butyl group, the photoreactive isopropyl/(R,S)-sec-butyl diester 3 is able to crystallize as a racemic solid solution in the chiral space group P212121. Irradiation of single crystals of this material leads to products of high optical purity (80% ee). An accompanying process of kinetic resolution leaves the recovered starting material enriched in one of its enantiomers