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Polymerization of norbornene was carried out in the presence of a catalyst system consisting of amidogen substituted mono(η~5-cyclopentadienyl)titanium/methyl aluminoxane.

采用胺基取代单茂钛{Cp~*TiCl_2N[Si(CH_3)_3]_2}与甲基铝氧烷组成催化体系催化降冰片烯聚合,得到有一定结晶结构的、可溶的聚降冰片烯。

The progress in the catalytic amination of bifunctional alcohols to diamines or cyclic amines is reviewed in this paper.

以乙醇和哌嗪催化胺化合成N-乙基哌嗪的反应为模型,对分子间醇的催化胺化反应进行了研究。

ZSM-5 molecular sieve is widely used as catalyst for aromatization, catalytic cracking and isomerization.

ZSM-5分子筛是应用广泛的催化体系,常用于烷烃的芳构化、催化裂化及异构化。

ZSM-5 molecular sieve was widely used as catalysts for aromatization, catalytic cracking and isomerization.

ZSM-5分子筛是应用广泛的催化体系,常用于烷烃的芳构化、催化裂化及异构化。

It was used to simulate the catalytic distillation column of methyl acetate and methanol azeotrope hydrolysis combined with the macro-dynamic equation of methyl acetate hydrolysis.

应用该方法结合实验测定的醋酸甲酯催化水解动力学数据对醋酸甲酯与甲醇共沸物催化精馏水解小试过程进行了模拟计算,得到了满意的结果。

The catalytic effects of 16a-e on the asymmetric addition of diethylzinc to benzaldehyde were evaluated, and it was found that they could promote the reaction with up to 63% yield and 27% ee.

研究了化合物16a-e催化二乙基锌对苯甲醛的不对称加成,发现16b-e可以催化该反应的进行,最高产率为63%,ee值27%。

The ability of the chiral bis-imidazolium salt for asymmetric catalytic benzoin condensation has been probed. It has shown good catalytic activity for benzoin condensation, but no enantioselectivity has been detected.

探讨了手性双咪唑鎓盐不对称催化苯偶姻缩合反应的性能,结果表明其对苯偶姻缩合反应具有高的催化活性,但未能显示对映选择性。

The epoxidation of of various olefins was carried out using LDH-F with Mg/Al=5 as the catalyst and H2O2 and benzonitrile as the oxidants. This catalytic system has excellent catalytic activity. The conversion and selectivity are both above 95% when using styrene, indene, allyl alcohol, and allyl chloride as the substrates.

以Mg/Al=5的LDH-F为催化剂,H2O2和苯甲腈为氧化剂对不同官能团化烯烃进行环氧化反应,结果表明,此催化体系具有良好的催化性能,在苯乙烯、茚、丙烯醇和烯丙基氯环氧化反应中转化率和选择性均在95%以上。

Polyketone STCO, a special Ecomaterial, poly (1-oxo-2-phentrimethylene), was prepared by the precipitation copolymerization of CO with ST in the presence of catalysts composed of palladium acetate, bident ligand of 2, 2′-bipyridine, strong acid, p-benzoquinone etc.

利用乙酸钯、含氮双齿配体、强酸、对苯二醌等组成的催化体系催化苯乙烯和一氧化碳的沉淀共聚反应,合成出环境友好材料聚酮STCO—聚(1-氧代-2-苯基丙撑)。

The method is based on the catalytic effect of trace formaldehyde on the reaction between potassium bromate and Azur A .

研究了在H2SO4介质中,微量甲醛对KBrO3氧化天青A 有较强的催化作用,建立了催化光度法测定微量甲醛的新方法。

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