Preparation of carbamates
    4.
    发明授权
    Preparation of carbamates 失效
    氨基甲酸酯的制备

    公开(公告)号:US4537960A

    公开(公告)日:1985-08-27

    申请号:US529037

    申请日:1983-09-02

    CPC分类号: C07D295/13

    摘要: N- and O-substituted carbamates are prepared by reacting urea with an aminopropanol at 140.degree. C. or above. The compounds obtained by the novel process are useful starting materials for the preparation of textile finishing agents, stabilizers, plasticizers, dyes and crop protection agents.

    摘要翻译: N-和O-取代的氨基甲酸酯通过使脲与氨基丙醇在140℃或更高温度下反应来制备。 通过新方法获得的化合物是用于制备纺织整理剂,稳定剂,增塑剂,染料和作物保护剂的起始材料。

    Preparation of tertiary alcohols
    5.
    发明授权
    Preparation of tertiary alcohols 失效
    叔醇的制备

    公开(公告)号:US4493801A

    公开(公告)日:1985-01-15

    申请号:US317001

    申请日:1981-11-02

    摘要: Tertiary alcohols are prepared by oxidizing tertiary aldehydes with oxygen at elevated temperatures.The tertiary alcohols prepared in this way are valuable and versatile intermediates for dyes, drugs and crop protection agents and are used, for example, in the preparation of agrochemicals.

    摘要翻译: 在高温下用氧气氧化叔醛制备叔醇。 以这种方式制备的叔醇是用于染料,药物和作物保护剂的有价值和通用的中间体,并且用于例如农药的制备。

    Process for the manufacture of mixtures of diphenylmethane diisocyanates
and polyphenyl polymethylene polyisocyanates
    7.
    发明授权
    Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates 失效
    制备二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物的方法

    公开(公告)号:US4349484A

    公开(公告)日:1982-09-14

    申请号:US197890

    申请日:1980-10-17

    CPC分类号: C07C263/04 C07C271/06

    摘要: A process for the production of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates comprising the steps ofA. reacting aniline and an O-alkyl carbamate to form N-phenylurethanes;B. isolating the N-phenylurethanes;C. condensing, in the presence of an acid, the N-phenylurethanes with formaldehyde or bifunctional compounds having the formulaX--CH.sub.2 --X in which X stands for a RO--, RS-- or ROCO radical and R denotes an alkyl radical, to form mixtures of methylene bis(phenylurethanes) and polymethylene polyphenylurethanes;D. cleaving the mixtures of methylene bis(phenylurethanes) and polymethylene polyphenylurethanes at temperatures of 175.degree. C. to 600.degree. C.; andE. isolating the mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanate resulting from step D.

    摘要翻译: 制备二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物的方法,其包括以下步骤:A.使苯胺和氨基甲酸O-烷基酯反应形成N-苯基氨基甲酸酯; B.分离N-苯基氨基甲酸酯; C.在酸存在下,将N-苯基氨基甲酸酯与具有式X-CH 2 -X的甲醛或双官能化合物缩合,其中X代表RO-,RS-或ROCO基团,R表示烷基,至 形成亚甲基双(苯基氨基甲酸酯)和多亚甲基多苯基氨基甲酸酯的混合物; D.在175℃至600℃的温度下切割亚甲基双(苯基氨基甲烷)和多亚甲基多苯基氨基甲酸酯的混合物。 和E.分离由步骤D得到的二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物。

    Manufacture of alkylphenol compounds
    9.
    发明授权
    Manufacture of alkylphenol compounds 失效
    烷基酚化合物的制造

    公开(公告)号:US4202199A

    公开(公告)日:1980-05-13

    申请号:US839775

    申请日:1977-10-06

    CPC分类号: C07C37/14 C07C41/30 Y02P20/52

    摘要: Alkylphenol compounds are manufactured by continuous reaction of phenolic compounds with olefins in the presence of a pulverulent polystyrenesulfonic acid exchanger suspended in the reaction mixture. The products are starting materials for the manufacture of dyes, pesticides, pharmaceuticals, emulsifiers, dispersing agents, stabilizers, antioxidants, plasticizers, corrosion inhibitors, disinfectants, seed dressings, aging inhibitors, crop protection agents and scents.

    摘要翻译: 在悬浮在反应混合物中的粉状聚苯乙烯磺酸交换剂存在下,通过酚类化合物与烯烃的连续反应制备烷基酚化合物。 该产品是用于制造染料,农药,药物,乳化剂,分散剂,稳定剂,抗氧化剂,增塑剂,腐蚀抑制剂,消毒剂,种子敷料,老化抑制剂,作物保护剂和香料的起始原料。