查询词典 catalyzed

Assisted with ultrasonic radialization, the optimized conditions for biodiesel production catalyzed by calcined Zn-Mg-Al hydrotalcite were obtained.

以纳米Zn-Mg-Al高温煅烧物为催化剂，高酸值小桐子油为原料，超声波反应器中连续生产生物柴油，并系统研究超声波辐射协同纳米催化剂催化制备生物柴油的最优条件。

This Palladacycle catalyzed Heck reaction was characterized by a wide variety of substrates, mildness of reaction conditions, freedom from protection of inert gases and high catalytic activity retainable after repeated uses.

二茂铁亚胺环钯化合物催化的Heck反应具有底物范围较广，反应条件温和，不需要惰性气体保护，催化活性高且催化剂可重复使用仍能保持活性的优点。

Salicylaldehyde; Palladium-catalyzed Reaction; Crystal Structure; Hydrogen Bonding

水杨醛；钯催化反应；晶体结构；氢键

To achieve this, further fundamental studies on the optical resolutions of the selected target carboxylic acids and neutral amino acids have been carried out in organic solvents respectively with acidic, basic, and esters of tartaric acid resolving agents, along with the racemization of the neutral amino acids catalyzed by salicylaldehyde.

为此，分别选择代表性的有机酸和中性氨基酸在有机溶剂中与酸性、碱性和酯类拆分剂分别进行光学拆分的深入研究，同时研究了水杨醛催化下L-型中性氨基酸的销旋催化研究。

One of the Chai Xiaohua's work named Space vs Quantum was catalyzed purely by his own mood. By transforming objects into a souled world with his aesthetic consciousness of space, the artist brought about the naissance of the spaces in his work.

来自蔡小华的&星空间与量的关系&是纯粹个人的心理情绪的催化，画家的画面空间的诞生，是蔡小华在美学空间里体现出来由物象转为心灵的世界。

Using thienyl stannane and palladium-catalyzed, 1,4-di(5'-carbaldehyde-thiophen-2'-yl)-2,5-dioctyloxy-benzene was synthesized by four steps, the structure was determined by NMR, IR and elemental analysis.

由于目标产物(5)本身具有多芳环共轭体系，其荧光效应相当强烈，在氯仿溶液中紫外-可见吸收和荧光发射的最大波长分别为413nm和477nm，固态荧光发射波长为504nm

Synthesis of poly catalyzed with stannous oxalate ;2. The thermal decomposition of stannous oxalate was investigated by differential scanning calorimetry.

以草酸和氧化亚锡为原料，用室温固相一步反应法合成了草酸亚锡，用红外光谱和热重技术对产物进行了表征。

The ligand of the chiral Schiff base and acetylacetone vanadium are subjected to complexation in situ, hydrogen peroxide is taken as an oxidant, aryl alkyl thioether asymmetric oxidation reaction is catalyzed in a toluene or dichloromethane solution under low temperature or room temperature, enantioselectivity of chiral sulphoxide is 72 percent to 95 percent ee, and yield is 42 percent to 83 percent.

将上述手性西佛碱配体与乙酰丙酮氧钒原位络合，采用双氧水为氧化剂，在甲苯或二氯甲烷溶液中低温至室温下催化芳基烷基硫醚不对称氧化反应，手性亚砜的对映选择性为72％-95％ee，产率为42％-83％。

The preparation of borneolacetate catalyzed by nanometer solid superacid and its reaction kinetics were studied.

比较系统地研究了纳米固体超强酸催化合成乙酸冰片酯的反应，并对反应的动力学进行了初探。

The Limit Oxygen Index also can be raised from 16.5 to 22 and 23 respectively.The Octaphenyl POSS is synthesized via the hydrolysis and condensation of phenyltrichlorosilane (PhSiCl_3) and the subsequent rearrangement reaction catalyzed by tetramethylammonium hydroxide. Poly are easily synthesized from Ph-POSS via bromination with Br_2/Fe system.

以苯基三氯硅烷为起始原料，通过水解缩合、催化重排的办法制备了八聚苯基笼型倍半硅氧烷，在Fe粉催化条件下将溴元素引入Ph-POSS的苯环得到Br-POSS；使用该种Br-POSS和Sb_2O_3的混合物(3∶1，质量比)作为聚苯乙烯树脂的添加剂，采用熔融共混法制备(Br-POSS+Sb_2O_3)／PS复合材料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。