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发明公开
CN110997639A 制备环状亚烷基脲的方法 审中-实审

制备环状亚烷基脲的方法
摘要：
一种生产式I的环状亚烷基脲产物的方法，其中使式II和/或III化合物在反应区中与式IV和/或V化合物在一种或多种羰基输送化合物存在下接触；其中R1为-[A-X-]qR3；R2在每次出现时独立地选自H和任选被一个或两个选自-OH和-NH2的基团取代的C1-C6烷基；R3在每次出现时独立地选自H和任选被一个或两个选自-OH和-NH2的基团取代的C1-C6烷基；A在每次出现时独立地选自任选被一个或多个C1-C3烷基取代的C1-C3亚烷基单元；X在每次出现时独立地选自-O-、-NR2-、式VI基团和式VII基团，并且p和q各自独立地选自0-8的整数；其中将式II化合物和/或式III化合物在一定时间内连续或半连续或者以两个或更多个批料加入包含式IV化合物和/或式(V)化合物的反应区中。R1NH-A-OH (III) H2N-A-NR2-[A-X-]pR3 (V)
摘要（英）：

A process for producing a cyclic alkylene urea product of Formula I: in which a compound of Formula II and/or Formula III is contacted in a reaction zone with a compound of Formula IV and/or Formula V and in the presence of one or more carbonyl delivering compounds; in which; R1 is –[A−X−]qR3; R2 is on each occurrence independently selected from H and C1 to C6 alkyl groups which are optionally substituted by one or two groups selected from −OH and −NH2; R3 is on each occurrence independently selected from H and C1 to C6 alkyl groups which are optionally substituted by one or two groups selected from −OH and −NH2; A is on each occurrence independently selected from C1 to C3 alkylene units, optionally substituted by one or more C1 to C3 alkyl groups; X is on each occurrence independently selected from −O−, −NR2−, groups of Formula VI, and groups of Formula VII and p and q are each independently selected from a whole number in the range of from 0 to 8; wherein the compound of Formula II and/or the compound of Formula III are added to a reaction zone comprising compound of Formula IV and/or compound of Formula (V) continuously or semi-continuously over a period of time, or in two or more batches.

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