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    • 3. 发明申请
    • PROCESS FOR PREPARING OF CAROTENOID MONO-ESTERS
    • 制备类胡萝卜素单酯的方法
    • WO2018050795A1
    • 2018-03-22
    • PCT/EP2017/073221
    • 2017-09-15
    • BASF SE
    • SCHAEFER, BerndSIEGEL, Wolfgang
    • C07C67/293C07C69/013C07C69/16C07C69/28C07C69/40C07C69/58C07C69/587C07C67/08C07C69/145C07C227/16C07C229/12C07C269/06C07C271/22
    • C07C67/293C07C67/08C07C227/16C07C269/06C07C69/16C07C69/013C07C69/58C07C69/28C07C229/12C07C69/587C07C69/40C07C69/145C07C271/22
    • The present invention relates to a process for preparing a carotenoid mono-ester of the formula (I), including the stereoisomers of formula (I), wherein, R 1 is e.g. hydrogen, C 1 -C 20 -alkyl, C 2 -C 20 -alkenyl, C 4 -C 20 -alkdienyl, C 6 -C 20 -alktrienyl or C 8 -C 20 - alktetraenyl, R 2 is e.g. hydrogen or -NR a R b , wherein R a is e.g. hydrogen, C 1 -C 4 -alkyl, -C(O)-C 1 -C 3 -alkyl, -Boc or -Cbz, R b is e.g. hydrogen or C 1 -C 4 -alkyl, R 3 is e.g. hydrogen, and X 1 , X 2 are independently from each other CH 2 or C=O, which comprises reacting a phosphonium salt of the formula (II) or a stereoisomer thereof: formula (II) wherein X 1 is as defined for formula (I), R 4 is phenyl, tert-butyl or tolyl, and Y - is a suitable counteranion, with a 12'-apocarotenal ester of the formula (III) or a stereoisomer thereof: formula (III) wherein X 2 , R 1 , R 2 , and R 3 are as defined for formula (I), in the presence of a base or a cryptobase.
    • 本发明涉及制备式(I)的类胡萝卜素单酯的方法,包括式(I)的立体异构体,其中R 1为 例如 氢,C 1 -C 20 - 烷基,C 2 -C 20 - 烯基,C 1 -C 20烷基, 4-C 20 - 链二烯基,C 6 -C 20 - 烷叉基或C 8 - C 20 - 烷撑烯基,R 2为例如 氢或-NR a R b,其中R a是例如甲基,乙基,丙基,异丙基,丁基等。 氢,C 1 -C 4 - 烷基,-C(O)-C 1 -C 3 - , - C 1 -C 4 - 烷基,-Boc或-Cbz,R b是例如 氢或C 1 -C 4 - 烷基,R 3是例如C 1 -C 4烷基。 氢和X 1,X 2彼此独立地为CH 2或C = O,该方法包括使式(I)的鏻盐与式 (II)或其立体异构体:式(II)其中X 1如式(I)所定义,R 4为苯基,叔丁基或甲苯基,和 (III)的12'-阿朴胡萝卜醛酯或其立体异构体:式(III):其中X 2,R 3,R 4, R 1,R 2和R 3如式(I)所定义,在碱或隐窝碱存在下进行。