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    • 95. 发明申请
    • PROCESS FOR PREPARING PHOSPHONIUM SALT ESTERS AS BUILDING BLOCKS FOR CAROTENOIDES
    • 用于制备类胡萝卜素块的磷鎓盐酯的方法
    • WO2018050793A1
    • 2018-03-22
    • PCT/EP2017/073219
    • 2017-09-15
    • BASF SE
    • SCHAEFER, BerndSIEGEL, Wolfgang
    • C07F9/54C07C403/08C07C403/16C07C403/24
    • C07F9/5442
    • The present invention relates to a process for preparing a phosphonium salt ester of the 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, X is CH 2 or C=O, R 4 is phenyl, tert-butyl or tolyl, Y - is a suitable counteranion, the process being characterized in that an alcohol of the formula (IV), is reacted with a carboxylic acid or one of its derivatives of the formula (V), wherein the variables R 1 , R 2 and R 3 are as defined above, and for n = 1 the variable Z is halogen, -OH or -O-C(O)-C 1 -C 4 -alkyl, and for n = 2 the variable Z is O or S, wherein the reaction is carried out in the presence of a tertiary amine and in case a compound of the formula (IV) with Z = -OH is used also in the presence of an activator. The invention further relates to certain phosphonium salt esters of the formula (I).
    • 制备式(I)的鏻盐酯的方法本发明涉及制备式(I)的鏻盐酯的方法,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 - 例如C 20 - 四链烯基,R 2是例如 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,X是CH 2或C = O,R 4是苯基,叔丁基或甲苯基,Y是合适的抗衡阴离子, 该方法的特征在于使式(IV)的醇与式(V)的羧酸或其衍生物之一反应,其中变量R 1,R 2, 2和R3如上所定义,并且对于n = 1,变量Z是卤素,-OH或-OC(O)-C1- C 1-4烷基,并且对于n = 2,变量Z是O或S,其中反应在叔胺存在下进行并且在式(IV)的化合物与 Z = -OH也用于活化剂的存在。 本发明进一步涉及式(I)的某些鏻盐酯。