Stable anionic polymerization initiator
    1.
    发明授权
    Stable anionic polymerization initiator 失效
    稳定的阴离子聚合引发剂

    公开(公告)号:US3903168A

    公开(公告)日:1975-09-02

    申请号:US41857873

    申请日:1973-11-23

    申请人: DU PONT

    CPC分类号: C07F1/02 C08F36/04 C08F4/488

    摘要: The sequential reaction of m-diisopropenylbenzene, an alkyllithium and butadiene or isoprene in the presence of 0.01 to 1.0 mole of a tertiary amine per mole of mdiisopropenylbenzene/alkyllithium adduct in a hydrocarbon solvent yields stable solutions of anionic polymerization initiators suitable for the polymerization of dienes.

    摘要翻译: 在烃溶剂中每摩尔m-二异丙烯基苯/烷基锂加合物在0.01至1.0摩尔叔胺存在下,间二异丙烯基苯,烷基锂和丁二烯或异戊二烯的顺序反应产生适于聚合的阴离子聚合引发剂的稳定溶液 的二烯。

    Continuous process for producing long chain amines
    5.
    发明授权
    Continuous process for producing long chain amines 失效
    连续生产长链氨基酸的方法

    公开(公告)号:US3780107A

    公开(公告)日:1973-12-18

    申请号:US3780107D

    申请日:1970-08-05

    CPC分类号: C07C209/08

    摘要: LONG CHAIN AMINES ARE PRODUCED IN A CONTINUOUS PROCESS AT ATMOSPHERIC PRESSURES BY REACTING LONG CHAIN C6 TO C26 MONOCHLORINATED OR MONOBROMINATED HYDROCARBONS WITH A STOICHIOMETRIC EXCESS OF LOWER MOLECULAR WEIGHT ALKYL, ALKYLENE OR ALKANOL AMINES BY ADDING REACTANTS SO AS TO CONTINUOUSLY MAINTAIN SAID STOICHIOMETRIC EXCESS OF AMINE AND CONTINUOUSLY WITHDRAWING FROM THE LIQUID REACTION MIXTURE LONG CHAIN AMINE PRODUCT AND UNREACTED INGREDIENTS AND SEPARATING SAID PRODUCT THEREFROM.

    Catalyst system for amine transalkylation
    10.
    发明授权
    Catalyst system for amine transalkylation 失效
    胺烷基转移催化剂体系

    公开(公告)号:US4645837A

    公开(公告)日:1987-02-24

    申请号:US668298

    申请日:1984-11-05

    CPC分类号: C07C209/64

    摘要: In the transalkylation of tertiary amines, unexpected higher yields are achieved requiring substantially less catalyst and much shorter reaction times at lower reaction temperatures using a homogeneous catalyst in the presence of an alcohol solvent and carbon monoxide. The process may be exemplified by reacting triethylamine and tripropylamine in the presence of a homogeneous triosmiumdodecacarbonyl catalyst, ethanol, and carbon monoxide to prepare diethylpropylamine and ethyldipropylamine.

    摘要翻译: 在叔胺的烷基转移中,在醇溶剂和一氧化碳的存在下,使用均相催化剂,在较低的反应温度下实现了意想不到的更高产率,需要基本上更少的催化剂和更短的反应时间。 该方法的实例可以是在均相三碳二羰基催化剂,乙醇和一氧化碳的存在下使三乙胺和三丙胺反应制备二乙基丙胺和乙基二丙胺。