摘要:
The invention relates to 2-alkylmercapto-4-(trifluoromethyl)benzoic esters of the formula (II), in which R.sup.1 and R.sup.2 are, independently of each other, (C.sub.1 -C.sub.6) alkyl, and a process for their preparation, which comprises reacting 3,4-dichlorobenzotrifluoride electrochemically at an anode with CO.sub.2 to give 2-chloro-4-(trifluoromethyl)-benzoate, converting it into the corresponding benzoic ester of the formula (I), and then reacting it with an alkylmercaptide R.sup.2 S.sup.e. ##STR1##
摘要:
The invention relates to bisquaternary ammonium compounds of the formula (I) ##STR1## and their preparation, where: R.sup.1, R.sup.2, R.sup.3 are, for example, identical or different (C.sub.1 -C.sub.12)alkyl which can also contain oxygen atoms or N--R.sup.4 moieties, where R.sup.4 is (C.sub.1 -C.sub.4)alkyl, in the chain and A is a chlorine, bromine, iodine atom or a OSO.sub.3 R.sup.5 radical, where R.sup.5 is (C.sub.1 -C.sub.4) alkyl or aryl.
摘要:
The invention relates to a process for preparing phosphines ##STR1## where, for example R.sup.1 is (C.sub.1 -C.sub.10)alkyl, (C.sub.3 -C.sub.10)cycloalkyl, C(YZ)aryl Y, Z is (C.sub.1 -C.sub.4)alkyl, hydrogen, Aryl is phenyl, naphthyl, anthracenyl, phenanthrenyl, or biphenyl, binaphthylandR.sup.2, R.sup.3 are, independently of one another, phenyl, naphthyl or anthracenyl,by reacting a diarylphosphine ##STR2## where X is bromine, chlorine, fluorine, (C.sub.1 -C.sub.4)alkoxy, O-phenyl, with a reducing agent and a quaternary ammonium compound ##STR3## where A is an anion of an organic or inorganic acid.
摘要:
Process for the preparation of thiocarbamic acid-O-esters of the general formula ##EQU1## in which R.sub.1 means an alkyl or cycloalkyl radical, R.sub.2 and R.sub.3 each stands for an alkyl radical which may be substituted by one of the groups --(O--C.sub.2 H.sub.4).sub.n --OH, --(OC.sub.2 H.sub.4).sub.n --OCH.sub.3 or --O--(CH.sub.2).sub.m --CH.sub.3, n being 0, 1 or 2 and m being 1 or 2, or stand for a cycloalkyl radical, and one of the radicals R.sub.2 and R.sub.3 may be hydrogen which process comprises reacting at a temperature ranging between 20.degree. and 120.degree.C in an aqueous or water-containing medium a xanthogenate of the formula ##EQU2## in which R.sub.1 is defined as above and Me is an alkali metal with a primary or secondary aliphatic amine of the formula ##EQU3## in which R.sub.2 and R.sub.3 are defined as above, and elementary sulfur.
摘要翻译:用于制备通式为R 2 R 1 -OCN ANGLE I PARALLEL SR 3的硫代氨基甲酸-O-酯的方法,其中R 1表示烷基或环烷基,R 2和R 3各自表示可以被一个 基团 - (O-C 2 H 4)n -OH, - (OC 2 H 4)n -OCH 3或-O-(CH 2)m -CH 3,n为0,1或2,m为1或2,或代表环烷基, 并且基团R2和R3之一可以是氢,该方法包括在含水或含水的介质中在20-120℃的温度下反应式R1-OC-SMe II PARALLEL S的黄原酸酯,其中R 1 其定义如上,Me是具有式R2 HN ANGLE III R3的伯或仲脂族胺的碱金属,其中R 2和R 3如上所定义,和单元硫。