Geometrical isomers of acrylonitrile compounds, mixture thereof, and process for producing these
申请人:Ishihara Sangyo Kaisha Ltd.
公开号:US06624179B1
公开(公告)日:2003-09-23
A geometrical isomer of an acrylonitrile compound represented by the formula (I) or of its salt, or a mixture thereof:
[wherein T is phenyl or pyridyl, which is substituted by R2, Q is phenyl, thienyl, pyridyl or benzyl, which may be substituted by R3, R1 is —C(═O)R4 or —C(═S)R4, R4 is alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cycloalkyl, cycloalkyloxy, cycloalkylthio, —N(R5)R6, phenyl, phenoxy, phenylthio, benzyl, benzyloxy, benzylthio, —J, —O—J or —S—J], wherein the geometrical isomer has a longer retention time when analyzed by reversed phase liquid chromatography in which a packing comprising silica having chemically bonded thereto an alkyl group selected from trimethyl, octyl and octadecyl, is used as the stationary phase, and a polar solvent selected from water, methanol and acetonitrile, is used as the mobile phase, and the geometrical isomer mixture contains such geometrical isomer in a larger proportion.
一种丙烯腈化合物的几何异构体,其化学式为(I),或其盐,或二者的混合物:[其中T为苯基或吡啶基,其被R2取代,Q为苯基、噻吩基、吡啶基或苄基,可被R3取代,R1为—C(═O)R4或—C(═S)R4,R4为烷基、烯基、炔基、烷氧基、烯氧基、炔氧基、烷硫基、烯硫基、炔硫基、环烷基、环烷氧基、环烷硫基、—N(R5)R6、苯基、苯氧基、苯硫基、苄基、苄氧基、苄硫基、—J、—O—J或—S—J],其中通过反相液相色谱分析时,具有更长保留时间的几何异构体,其固定相为具有化学键合的二氧化硅,其上选择性地连接了三甲基、辛基和十八烷基之一的烷基,流动相为选择性地从水、甲醇和乙腈中选择的极性溶剂,且几何异构体混合物中含有这种几何异构体的比例较大。