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    • 85. 发明申请
    • PROCESS FOR THE PREPARATION OF PYRIMIDINE COMPOUNDS
    • 制备吡嗪化合物的方法
    • WO1992008703A1
    • 1992-05-29
    • PCT/GB1991001989
    • 1991-11-12
    • IMPERIAL CHEMICAL INDUSTRIES PLCJONES, John, DavidDeBOOS, Gareth, AndrewWILKINSON, PaulCOX, Brian, GeoffreyFIELDEN, Jan, Michael
    • IMPERIAL CHEMICAL INDUSTRIES PLC
    • C07D239/34
    • C07D239/34C07D307/83C07D311/12
    • A process for preparing agrochemical intermediates of formula (I), wherein W is (CH3O)2CH.CHCO2CH3 or CH3O.CH=CCO2CH3; Z is a halogen atom; and R , R , R and R are independently hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy, acetoxy or acyl; the process comprising the steps of: (a) reacting a compound of formula (II), wherein X, R , R , R and R are as defined above, with a compound of formula ROCH3, wherein R is a metal; and, (b) reacting the product of (a) with a compound of formula (III), wherein Z and Z are halogen atoms. A process for the preparation of compounds of formula (II) and compounds of formula (II) themselves. A process for obtaining, in substantially pure form, a compound of formula (II) and compounds of formula (II) themselves. A process for obtaining, in substantially pure form, a compound of formula (II) wherein R , R and R are all hydrogen.
    • 一种制备式(I)的农药中间体的方法,其中W是(CH 3 O)2 CH.CHCO 2 CH 3或CH 3 O.CH = CCO 2 CH 3; Z 1是卤原子; R 1,R 2,R 3和R 4独立地是氢,卤素,C 1-4烷基,C 1-4烷氧基,乙酰氧基或酰基; 该方法包括以下步骤:(a)将其中X,R 1,R 2,R 3和R 4如上定义的式(II)化合物与式 式ROCH 3,其中R是金属; 和(b)使(a)的产物与式(III)化合物反应,其中Z 1和Z 2均为卤素原子。 制备式(II)化合物和式(II)化合物本身的方法。 以基本上纯的形式获得式(II)化合物和式(II)化合物本身的方法。 以基本上纯的形式获得其中R 1,R 2,R 3和R 4均为氢的式(II)化合物的方法。
    • 90. 发明申请
    • AMORPHOUS POLYOLEFINS
    • 非晶聚合物
    • WO1991018029A1
    • 1991-11-28
    • PCT/GB1991000791
    • 1991-05-21
    • IMPERIAL CHEMICAL INDUSTRIES PLCWILSON, Brian
    • IMPERIAL CHEMICAL INDUSTRIES PLC
    • C08F210/02
    • C08F210/00C08F210/02
    • Amorphous polyolefins include units from acyclic mono-olefins, particularly ethylene, and units derived norbornene type olefins including units of formula (I), where: n1 is 0, 1 or 2, n2 is 0 or 1 and n1 + n2 > 0; n3 is 0 or from 1 to 4; n4 is 0 or from 1 to 4; R , R and R are each hydrogen, halogen, alkyl, cycloalkyl, aralkyl, alkaryl or aryl; the ring group A is 1,2-cyclohexylene or a 1,2-phenylene which may be unsubstituted or substituted with halogen, alkyl or aryl and may have further 1,2-cyclohexylene or 1,2-phenylene fused to it. The polymers can be made by polymerisation of the monomers under Ziegler-Natta catalysis. They are amorphous and transparent having high Tg's and are useful in optical components such as optical discs.
    • 无定形聚烯烃包括来自无环单烯烃,特别是乙烯的单元和包含式(I)单元的降冰片烯型烯烃单元,其中:n1为0,1或2,n2为0或1,n1 + n2> 0; n3为0或1〜4; n4为0或1〜4; R 1,R 2和R 3各自为氢,卤素,烷基,环烷基,芳烷基,烷芳基或芳基; 环A <1>是1,2-亚环己基或可以是未取代的或被卤素,烷基或芳基取代的1,2-亚苯基,并且可以具有与其稠合的进一步的1,2-亚环己基或1,2-亚苯基 。 聚合物可以通过齐格勒 - 纳塔催化下单体的聚合来制备。 它们是非晶和透明的,具有高Tg,并且可用于诸如光盘的光学部件。