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    • 28. 发明申请
    • PROCESS FOR THE SYNTHESIS OF PHENOXYALKANE DERIVATIVES
    • 合成苯甲酸衍生物的方法
    • WO1982000639A1
    • 1982-03-04
    • PCT/AU1981000101
    • 1981-07-31
    • ICI AUSTRALIA LTDWATSON K
    • ICI AUSTRALIA LTD
    • C07C69/92
    • C07C59/68C07C303/24C07C305/24
    • Process for the synthesis of a compound of formula I (FORMULA) wherein: U and V may be chosen from a range of substituents including hydrogen, halogen, alkyl and alkoxy; R s and R s may be chosen from a range of substituents including hydrogen and alkyl; n is 0, 1 or 2; and W may be chosen from a range of substituents including the group -//c-G which may be a free carboxylic acid or derivative thereof; the process comprising reacting a sulfate ester of formula II, wherein Q is a cation, with a compound of formula III, wherein L is a leaving group (FORMULA) and hydrolysing the sulfate ester formed. Preferably the sulfate ester of formula II is prepared by the oxidation of a phenol of formula IV with a persulfate.
    • 用于合成式I化合物的方法(配方)其中:U和V可以选自包括氢,卤素,烷基和烷氧基的取代基范围; R 1和R 2可以选自包括氢和烷基的取代基的范围; n为0,1或2; 并且W可以从包括可以是游离羧酸或其衍生物的基团-c-G的取代基的范围中选择; 该方法包括使式II的硫酸酯(其中Q是阳离子)与式III化合物反应,其中L是离去基团(式)并水解形成的硫酸酯。 优选地,式II的硫酸酯通过用过硫酸盐氧化式IV的酚来制备。