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    • 7. 发明授权
    • Preparation process of cinnamate ester
    • 肉桂酸酯的制备方法
    • US5179224A
    • 1993-01-12
    • US769481
    • 1991-10-01
    • Usaji TakakiYoshihiro YamamotoToshio MatsuhisaIsamu SudoShinobu Aoki
    • Usaji TakakiYoshihiro YamamotoToshio MatsuhisaIsamu SudoShinobu Aoki
    • C07C69/618
    • C07C69/618Y02P20/584
    • Disclosed herein is a process for preparing a corresponding cinnamate ester by reacting a styrene compound, carbon monoxide, an alcohol and oxygen by the use of (1) metallic palladium or a compound thereof, (2) a copper compound, (3) a compound of at least one metal selected from Groups 4A, 5A, 7A, 8A (the iron group only) and 2B in the Periodic Table and (4) a halogen compound as a catalyst which comprises treating the catalyst components recovered from the reaction liquid after completion of the reaction with an oxidizing agent in the presence of an organic acid to regenerate their catalytic activity, using the resulting catalyst components again in the reaction as a catalyst and repeating the foregoing procedure.The regenerated catalyst is recovered in catalytic activity to the extent of that of a fresh catalyst and thus gives a high reaction performance in the subsequent reaction. Thus, the catalyst containing expensive metal can be used circulatively.
    • 本文公开了通过使用(1)金属钯或其化合物使苯乙烯化合物,一氧化碳,醇和氧反应制备相应的肉桂酸酯的方法,(2)铜化合物,(3)化合物 的选自4A,5A,7A,8A(仅铁族)和2B中的至少一种金属,以及(4)作为催化剂的卤素化合物,其包括在完成后处理从反应液中回收的催化剂成分 在有机酸存在下与氧化剂反应以再生其催化活性,在反应中再次使用所得催化剂组分作为催化剂,并重复上述步骤。 再生催化剂的催化活性回收到新鲜催化剂的催化活性,因此在随后的反应中得到高的反应性能。 因此,可以循环使用含有贵金属的催化剂。
    • 10. 发明授权
    • Preparation process of polymer
    • 聚合物的制备工艺
    • US6077930A
    • 2000-06-20
    • US79230
    • 1998-05-15
    • Tadahito NoboriShinji KiyonoTakaomi HayashiUsaji Takaki
    • Tadahito NoboriShinji KiyonoTakaomi HayashiUsaji Takaki
    • C08G63/82C08G65/26C08G69/20C08G77/08C08G63/08
    • C08G69/20C08G63/823C08G65/2675C08G77/08
    • A preparation process of a polymer comprising conducting ring-opening polymerization of a 4- to 10-membered ring-opening polymerizable cyclic monomer in the presence of a phosphazenium salt of an active hydrogen compound represented by the chemical formula (1): ##STR1## wherein n is an integer of 1 to 8 and indicates the number of phosphazenium cations, Z.sup.n- is an anion of a n-valent active hydrogen compound derived by releasing n protons from an active hydrogen compound having a maximum of 8 active hydrogen atoms, a, b, c and d are individually a positive integer or 0 and are not all 0 at the same time, R's are the same or different hydrocarbons having 1 to 10 carbon atoms, and two R's located on each common nitrogen atom may be coupled together to form a ring structure; or in the presence of the phosphazenium salt of the active hydrogen compound and the active hydrogen compound is disclosed. The process can prepare polymer by ring-opening polymerization of a 4- to 10-membered ring-opening polymerizable cyclic monomer in the presence of an initiator which causes no specific problem or preparation and handling, contains quite no installic ingredient and has no residual odor.
    • 一种聚合物的制备方法,包括在由化学式(1)表示的活性氢化合物的磷氮烯基鏻盐的存在下进行4-至10-元可开环聚合的环状单体的开环聚合:其中n为 1〜8的整数,表示磷氮烯基鏻阳离子的数量,Zn-是通过从具有最多8个活性氢原子的活性氢化合物释放n个质子得到的n价活性氢化合物的阴离子,a,b, c和d分别为正整数或0并且同时不全部为0,R为相同或不同的碳原子数为1〜10的烃,并且位于每个常见氮原子上的两个R可以连接在一起形成 环结构; 或在活性氢化合物的磷腈鎓盐和活性氢化合物的存在下进行。 该方法可以通过在不引起特定问题或制备和处理的引发剂的存在下开环聚合4-至10-元可开环聚合的环状单体来制备聚合物,其中不含安装成分并且没有残留气味 。