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    • 3. 发明授权
    • Process for the preparation of aryloxyacetic acid
    • 制备芳氧基乙酸的方法
    • US4804777A
    • 1989-02-14
    • US106302
    • 1987-10-09
    • Charles E. Sumner, Jr.Eric J. Fugate
    • Charles E. Sumner, Jr.Eric J. Fugate
    • B01J23/50B01J23/68C07B61/00C07C51/235C07C51/255C07C59/70C07C51/16
    • C07C51/255C07C51/235
    • Process for the preparation of an aryloxyacetic acid by oxidation of aryloxyethanol of the formula: ##STR1## wherein m represents 1 or 2,n represents the numeral which results from the difference between 6 and m and R either individually or independently of one another represents hydrogen, alkyl, cycloalky, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen, alkylcarbonyl, arylcarbonyl, carboxyl or nitro, or represents a benzene ring fused to the phenyl ring, in an aqueous alkaline reaction medium at a temperature in the range of 0.degree. C. to the boiling point of the reaction medium in the presence of a catalytic amount of a catalyst comprised of palladium, silver and optionally antimony, and carbon to form the corresponding alkali metal ester and contacting the alkali metal with a mineral acid.
    • 芳氧基乙酸通过氧化芳氧基乙醇制备下式的方法:其中m表示1或2,n表示由6和m之间的差异产生的数字,R和R独立地或彼此独立地表示氢 烷基,环烷基,芳基,芳烷基,烷氧基,环烷氧基,芳氧基,卤素,烷基羰基,芳基羰基,羧基或硝基,或表示稠合于苯环的苯环,在碱性水溶液中, 在催化量的由钯,银和任选的锑组成的催化剂存在下,在反应介质的沸点下进行反应,形成相应的碱金属酯并使碱金属与无机酸接触。
    • 4. 发明授权
    • Process for preparation of an oxyacetic acid/hydroxyethyl ether compound
    • 羟乙酸/羟乙基醚化合物的制备方法
    • US4791224A
    • 1988-12-13
    • US178702
    • 1988-04-07
    • Charles E. Sumner, Jr.Eric J. Fugate
    • Charles E. Sumner, Jr.Eric J. Fugate
    • B01J23/644C07B61/00C07C51/235C07C51/255C07C59/70C07C51/16
    • C07C51/235C07C51/255
    • Process for the preparation of an aryloxyacetic acid/hydroxyethyl ether by oxidation of aryloxyethanol of the formula: ##STR1## wherein R either individually or independently of one another represents hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen, alkylcarbonyl, arylcarbonyl, carboxyl or nitro, or represents a benzene ring fused to the phenyl ring, in an aqueous alkaline reaction medium at a temperature in the range of 0.degree. C. to the boiling point of the reaction medium in the presence of a catalytic amount of a catalyst comprised of palladium, bismuth, and carbon in the presence of a phenol corresponding to the structure: ##STR2## wherein R is as described above and p is 0, 1 or 2, to form the corresponding alkali metal ester/hydroxyethyl ether after catalyst removal the alkali metal ester is contacted with a mineral acid.
    • 通过芳氧基乙醇氧化制备芳氧基乙酸/羟乙基醚的方法,其结构式如下:其中R各自独立地或独立地表示氢,烷基,环烷基,芳基,芳烷基,烷氧基,环烷氧基,芳氧基,卤素, 烷基羰基,芳基羰基,羧基或硝基,或表示与苯环稠合的苯环,在碱性水溶液中,在催化剂存在下,在0℃至反应介质的沸点温度范围内 在由对应于以下结构的苯酚存在下由钯,铋和碳组成的催化剂的量:其中R如上所述,p为0,1或2,形成相应的碱金属酯/羟乙基 催化剂除去后,乙醚与无机酸接触。