Process for preparing tertiary diarylalkylphosphines
    23.
    发明授权
    Process for preparing tertiary diarylalkylphosphines 失效
    叔二芳基烷基膦的制备方法

    公开(公告)号:US5527967A

    公开(公告)日:1996-06-18

    申请号:US449309

    申请日:1995-05-24

    申请人: Hans Millauer

    发明人: Hans Millauer

    IPC分类号: C07F9/50 C25B3/04 C07F9/02

    CPC分类号: C07F9/5063 C25B3/04

    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.

    摘要翻译: 本发明涉及一种制备膦的方法,其中例如R1是(C1-C10)烷基,(C3-C10)环烷基,C(YZ)芳基Y,Z是(C1-C4)烷基 萘,萘基,菲基,联苯基,萘基,R2,R3彼此独立地为苯基,萘基或蒽基,二芳基膦(II)其中X为溴,氯, ,氟,(C 1 -C 4)烷氧基,O-苯基,还原剂和季铵化合物(III),其中A是有机或无机酸的阴离子。

    Process for the preparation of thiocarbamic acid O-esters
    24.
    发明授权
    Process for the preparation of thiocarbamic acid O-esters 失效
    制备硫代氨基甲酸O-酯的方法

    公开(公告)号:US3963768A

    公开(公告)日:1976-06-15

    申请号:US532412

    申请日:1974-12-13

    CPC分类号: C07C333/04

    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。