N-substituted .epsilon.-caprolactams
    2.
    发明授权
    N-substituted .epsilon.-caprolactams 失效
    N-取代的ε-己内酰胺

    公开(公告)号:US4185017A

    公开(公告)日:1980-01-22

    申请号:US967593

    申请日:1978-12-08

    摘要: Condensation products of .epsilon.-caprolactam, formaldehyde and formamide, especially N-(formylaminomethyl)-.epsilon.-caprolactam and N-(N'-formyl-N'-hydroxymethyl-aminomethyl)-.epsilon.-caprolactam, are prepared by reacting formamide and formaldehyde in the presence of a base and in the presence or absence of .epsilon.-caprolactam at temperatures of 70.degree. to 90.degree. C. for 4 to 15 hours, then acidifying the reaction batch and, if no .epsilon.-caprolactam is present, adding .epsilon.-caprolactam, and distilling off water at 100.degree. to 135.degree. C.The condensation products are valuable modifiers for use in the manufacture of aminoplast resins employed for impregnating paper and fabrics which are used for the manufacture of coated wood-based materials and laminates.

    摘要翻译: 通过使甲酰胺和甲醛反应制备ε-己内酰胺,甲醛和甲酰胺,特别是N-(甲酰氨基甲基) - ε-己内酰胺和N-(N'-甲酰基-N'-羟甲基 - 氨基甲基) - ε-己内酰胺的缩合产物 碱的存在和在ε-己内酰胺存在或不存在下在70-90℃的温度下反应4至15小时,然后酸化反应批料,如果不存在ε-己内酰胺,则加入ε-己内酰胺 ,并在100℃至135℃下蒸馏掉水。缩合产物是用于制造用于浸渍纸和织物的氨基塑料树脂的有价值的改性剂,其用于制造涂覆的木质基材料和层压材料。

    Process for the preparation of 4,5-dichloro-1,2-dithiacyclopenten-3-one
    5.
    发明授权
    Process for the preparation of 4,5-dichloro-1,2-dithiacyclopenten-3-one 失效
    制备4,5-二氯-1,2-二硫代环戊烯-3-酮的方法

    公开(公告)号:US4447623A

    公开(公告)日:1984-05-08

    申请号:US422843

    申请日:1982-09-24

    IPC分类号: C07D339/04

    CPC分类号: C07D339/04

    摘要: An improved process for preparation of 4,5-dichloro-1,2-dithia-cyclopenten-3-one of the formula ##STR1## by reacting hexachloroprene with sulphur at elevated temperatures, wherein the improvement comprises hydrolyzing by-product sulphur chlorides by conducting the reaction in the presence of water.

    摘要翻译: 通过在升高的温度下使六氯丁二烯与硫反应制备式“IMAGE”的4,5-二氯-1,2-二硫杂环戊烯-3-酮的改进方法,其中改进包括通过导电来水解副产物硫化氯 在水的存在下的反应。