Process for preparing phenyl-acetic acid esters
    2.
    发明授权
    Process for preparing phenyl-acetic acid esters 失效
    制备苯乙酸酯的方法

    公开(公告)号:US3968124A

    公开(公告)日:1976-07-06

    申请号:US495155

    申请日:1974-08-06

    CPC分类号: C07C67/00

    摘要: A process for preparing a substituted phenyl-acetic acid ester of the formula (I), ##SPC1##wherein R.sub.1 is an ethyl group or an isopropyl group, R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a methoxy group, a halogen atom or a methylenedioxy group, which comprises reacting a quaternary ammonium salt of the formula (III), ##SPC2##wherein X is a halogen atom, and A is an alkylamine, pyridine or an N-alkylaniline, with a carboxylic acid of the formula (II), ##SPC3##wherein R.sub.1 and R.sub.2 are each as defined above, its reactive derivative, or a mixture of the acid and its reactive derivative.

    摘要翻译: 一种制备式(I)的取代的苯基 - 乙酸酯的方法,其中R 1是乙基或异丙基,R 2是氢原子,C 1 -C 4烷基,甲氧基,卤素原子或 其包括使式(III)的季铵盐(其中X是卤素原子)和A是烷基胺,吡啶或N-烷基苯胺与式(II)的羧酸反应,其中 R1和R2各自如上所定义,其反应性衍生物,或其酸及其反应性衍生物的混合物。

    Process for preparing m-phenoxybenzylalcohol and side-chain halogenated
m-phenoxytoluene
    3.
    发明授权
    Process for preparing m-phenoxybenzylalcohol and side-chain halogenated m-phenoxytoluene 失效
    间苯氧基苄醇和侧链卤代m-苯氧基甲苯的制备方法

    公开(公告)号:US4014940A

    公开(公告)日:1977-03-29

    申请号:US434734

    申请日:1974-01-18

    摘要: A process for preparing m-phenoxybenzyl, m-phenoxybenzal halides or a mixture thereof comprising halogenating m-phenoxytoluene in the presence of a phosphorus halide in the high temperature region above 220.degree. C, and a process for preparing m-phenoxybenzylalcohol comprising halogenating m-phenoxytoluene as above, reacting the resulting side-chain halogenated m-phenoxytoluene with an alkali metal salt of acetic acid and then (a) reducing and hydrolyzing the resulting m-phenoxybenzylacetate and m-phenoxybenzaldehyde, or (b) reducing the resulting m-phenoxybenzylacetate and m-phenoxybenzaldehyde, reacting the resulting product with acetic anhydride and an alkali metal salt of acetic acid and hydrolyzing the resulting m-phenoxybenzylacetate are disclosed.

    摘要翻译: 在220℃以上的高温区域中,在卤化磷存在下,制备间苯氧基苄基,间苯氧基苯甲酰卤或其混合物的方法,其中包括卤化间苯氧基甲苯,以及制备包含卤化m-苯氧基苯甲醛的间苯氧基苄基醇的方法, 如上所述的苯氧基甲苯,使得到的侧链卤代m-苯氧基甲苯与乙酸的碱金属盐反应,然后(a)还原和水解所得的间苯氧基苄基乙酸酯和间苯氧基苯甲醛,或(b)将所得的间苯氧基苄基乙酸酯 和间苯氧基苯甲醛,使所得产物与乙酸酐和乙酸的碱金属盐反应并水解所得的间苯氧基苄基乙酸酯。

    Process for preparing cyclopropane-carboxylic acid esters
    4.
    发明授权
    Process for preparing cyclopropane-carboxylic acid esters 失效
    制备环丙烷 - 羧酸酯的方法

    公开(公告)号:US3969393A

    公开(公告)日:1976-07-13

    申请号:US495154

    申请日:1974-08-06

    IPC分类号: C07C67/00

    CPC分类号: C07C67/00 C07C2101/02

    摘要: A process for preparing an organic acid ester of the formula (I), ##EQU1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a methyl group, a vinyl group, a 2,2-dichlorovinyl group, a 1-propenyl group, a 2-methyl-1-propenyl group, a 2-carbomethoxy-1-propenyl group, a 2-methoxymethyl-1-propenyl group, a 1,3-butadienyl group, a 2-methyl-1,3-butadienyl group or a cyclopentylidenemethyl group when R.sub.1 is a hydrogen atom, and R.sub.2 is a methyl group when R.sub.1 is a methyl group; which comprises reacting an acid of the formula (II), ##EQU2## wherein R.sub.1 and R.sub.2 are each as defined above, or its reactive derivative, or mixture of the acid and its reactive derivative with a quaternary ammonium salt of the formula (III), ##SPC1##wherein X is a halogen atom, A is an alkylamine, pyridine or an N-alkylaniline.

    摘要翻译: 制备式(I)的有机酸酯的方法,CH 3 CH 3 ANGLE ANGLE CH 2 OC -----R 1(I)PARALLEL OR2其中R1是氢原子或甲基,R2是甲基,乙烯基 基团,2,2-二氯乙烯基,1-丙烯基,2-甲基-1-丙烯基,2-甲酯基-1-丙烯基,2-甲氧基甲基-1-丙烯基,1,3 当R 1为氢原子时,2-甲基-1,3-丁二烯基或环戊烯基甲基,当R 1为甲基时,R 2为甲基; 其包括使式(II)的酸,其中R 1和R 2各自如上定义的CH 3 CH 3 ANGLE ANGLE R1 ----- COOH(II)R2或其反应性衍生物,或其酸及其反应性衍生物的混合物 与式(III)的季铵盐,其中X是卤素原子,A是烷基胺,吡啶或N-烷基苯胺。