查询词典 catalysts

Xylene isomerized catalyst:3814 series of catalysts have 3814,3851,3884,3884B etc.

四、二甲苯异构化催化剂：3814系列催化剂有3814、3851、3864、3864B等品种。

A novel route for synthesis of methyl acetoacetate from acetone and dimethyl carbonate over solid base catalysts was proposed.

以碳酸二甲酯与丙酮为原料，在固体碱上合成乙酰乙酸甲酯，并考察了反应温度、反应时间、催化剂用量和原料摩尔比等因素对反应结果的影响。

Supported 12-Phosphotungstic Acid and Its Salts as Catalysts for the Synthesis of Fructone and Fructone-B;2. Their catalytic activities were measured by synthesis of fructone-B from ethyl acetoacetate and 1,2-propanediol.

制备了一系列以脱铝超稳Y沸石为载体的磷钨酸及其铯盐催化剂，考察了催化剂在以乙酰乙酸乙酯和1，2-丙二醇为原料催化合成草莓酯反应过程中的性能。

These new ionic liquid-supported acetylacetone catalysts were used for the oxidation of the intermediates of Vitamin E (2,3,5-trimethylphenol and 3,5,5-trimethylcyclohex-3-en-l-one). It not only checked the rationality of the design, but also established the base for the green oxidation of corresponding reactions.

论文进一步将此类离子液体支载乙酰丙酮金属催化剂应用于维生素E中间体三甲基苯酚和β—异佛尔酮的氧化过程，一方面检验了催化剂设计过程及结果的可靠性，另一方面为相关氧化反应的绿色化改造提供相关的基础。

In chapter three,we investigated a new Baylis-Hillman-type reaction,organozinc speciesCF_3COOZnEt can react withα,β-acetylenic ketones and N-tosylated imines providing Baylis-Hillman adducts in good yield in the absence of any catalysts.

有机锌试剂CF_3COOZnEt可以与各种类型的α，β-炔酮及亚胺发生偶联反应，高产率的得到β-取代的Morita-Baylis-Hillman反应加合物，这类反应不需要任何的催化剂，产物具有立体单一型，完全是Z式结构。

Relative role of catalysts and reductants in the formation of metmyoglobin in aerobically stored beef. Meat Sci.

在这个研究中所得的数据，在120 小时贮藏过程中牛肉的变色，可能是Mb的氧化速率大於met-Mb的还原速率所造成。

Third, Polymerization behaviors of alkenyl substituted Cp Lanthanide complexes as Methyl Methacrylate polymerization catalysts were also studied.

最后，本文还分别考察了烯丁基和烯丙基取代茂的稀土络合物对甲基丙烯酸甲酯的催化聚合反应。

During the course of our recent investigation on a new generation of dihydroxylation catalysts,we had had the pleasure of preparing DMAP-derived benzylic alcohol 1 and desired to use its sodium alkoxide ion for an intended nucleophilic substitution event.

在我们对催化剂的羟化新一代最近的调查过程中，我们不得不编写DMAP的乐趣衍生苄醇1和期望使用的预定活动的亲核取代醇钠离子。

This finding shows that all allotropic carbon forms known up to date can be produced in nature, and high temperature, pressure, catalysts particles seem to play an important role in producing carbon nanotubes.

该发现表明迄今为止所有碳的同素异形体均可产于自然界，并且高温、压力、催化剂颗粒在产生纳米碳管的过程中起到了非常重要的作用。

Yoo and Li communicated the successful oxidative amidation of aldehydes with amine hydrochloride salts and Cu/Ag catalysts J.

柳、李沟通成功的醛胺氧化酰胺盐酸盐、铜/银催化剂 J时。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。