Process for the preparation of an N-substituted carbamoyl-lactam compound
    2.
    发明授权
    Process for the preparation of an N-substituted carbamoyl-lactam compound 失效
    制备N-取代氨基甲酰基 - 内酰胺化合物的方法

    公开(公告)号:US4540516A

    公开(公告)日:1985-09-10

    申请号:US641772

    申请日:1984-08-17

    摘要: The invention concerns a simple, reliable and reproducable process for the preparation of an N-substituted carbamoyl lactam compound, for example of the following formula: ##STR1## where: R is a polyol originating from a polyol having the formula R-(OH).sub.xi, where.sub.xi is an integer.gtoreq.2R' is an alkyl, aralkyl, alkaryl or aryl group, whether or not cyclic,.sub.yi is an integer.gtoreq.0,(--L) is an unopened lactam ring and(--L--) is an opened lactam block.This process is characterized in that a polyol and a lactam blocked polyisocyanate are reacted in the liquid state in the presence of a metal compound catalyst.

    摘要翻译: 本发明涉及用于制备N-取代的氨基甲酰基内酰胺化合物的简单,可靠和可再现的方法,例如下式:其中:R是源自具有式R-(OH) xi,其中xi是整数> / = 2 R'是烷基,芳烷基,烷芳基或芳基,无论是否是环状,yi是整数,其中(-L)是未开封的内酰胺环,( - L-)是开放的内酰胺块。 该方法的特征在于,多元醇和内酰胺封端的多异氰酸酯在金属化合物催化剂的存在下以液态反应。