查询词典 butyl

ConclusionThe extracts of Phrynium capitatum Willd flower with butyl alcohol and with water have excitatory effects on the non-pregnant or diethylstilbestrol-injected animal uterus in vitro ,which is more potent than that of Herba Leonuri fluid extract.

结论棕叶花正丁醇、水溶性组分对家兔、豚鼠、大鼠、小鼠离体子宫有明显兴奋作用。对离体子宫兴奋作用比益母草流浸膏显著。

ConclusionThe extracts of Phrynium capitatum Willd flower with butyl alcohol and with water have excitatory effects on the non-pregnant or diethylstilbestrol-injected animal uterus in vitro ,which is more potent than that of Herba Leonuri fluid extract.

结论棕叶花正丁醇、水溶性组分对家兔、豚鼠、大鼠、小鼠离体子宫有明显兴奋作用。对离体子宫兴奋作用比益母*流浸膏显著。

In this paper,we have reported the regularities of graft copolymerization of butyl acrylate onto potato starch using ceric ammonium nitrate as an initiator.

本文以硝酸铈铵为引发剂，研究了丙烯酸丁酯与土豆淀粉接枝共聚的反应规律。

The synthesis of butyl acetate with acetic acid and butanol as reactants and ammonium ceric sulfate as catalyst was studied.

研究了以硫酸铈铵为催化剂，乙酸和正丁醇为原料合成乙酸正丁酯，通过试验确定了最佳合成条件，结果表明，在适宜条件下其酯化率可达 93.4 %。

The catalyst prepared by impregnating SBA-15 in solution of 0.1 mol/L ceric sulfate and being calcined at 300℃ for 3h showed best catalytic activity in synthesis of n-butyl acetate.

用0.1 mol/L的硫酸高铈浸渍SBA-15，焙烧温度为300℃，焙烧时间3h，通过乙酸正丁酯的合成反应考察催化剂Ce-SBA-15的制备，酯化率为95.7%。

Compared with the unloaded cerous sulfate, the multiple- walled carbon nanotube loaded cerous sulfate possessed some obvious advantages of higher catalytic activity, less use level and higher yield of n-butyl propionate.

与未担载硫酸铈相比，碳纳米管担载硫酸铈具有催化活性高、催化剂用量少、重复使用率好和丙酸丁酯得率高等显著优点。

Then, inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles and quaternary ammonium salts are studied from microscope through quantum chemistry calculation, and according to the results, theory predicting and proof testing of a benzene nitrile (2-benzo butyl nitrile) are made.

利用Hansch关系的研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀效率，可用苯腈类化合物氰基氮原子的净电荷密度和分子最高占据轨道能量或分子最低空轨道能量构成的表达式表达。量子化学计算研究结果表明：1、苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀机理可能是：苯腈类化合物分子以其氰基氮原子上的电子提供给铁的3d空轨道，形成配位键；同时铁的3d轨道上的电子提供给苯腈类化合物分子的能量最低空轨道，形成&反馈键&。

Synthesis process Molecular Formula:〓 Molecular Weight: 394 Chemicla name: N-(2, 3-dihydro-2, 7-dimethyl-benzofuran-1-acyl)-N'-tert-butylN'-(3, 5-dimethyl benzoyl) hydrazine Structural formula:〓 This article define a synthesis method of JS118 with (2, 3-dihydro-2, 7-dimethylbenzofuranyl)-6-formic acid, tert-butyl hydrazine hydrochloride acid and 3, 5-dimethyl benzoic acid as main intermediate through four steps of reaction involving, acyl chloridation condensation and so on.

本文主要的研究工作内容：(1)以N-特丁基双酰肼为先导结构，利用分子等排原理和类同合成法进行先导设计，有目的、有选择地重点改变R〓、R〓基团，将具有不同取代基的苯环以及呋喃环、苯并呋喃环、吡咯环、吡啶环等杂环、稠杂环与先导结构进行有机的组合。

Synthesis of n-butyl chloroacetate from chloroacetic acid and n-butanol in the presence of stannic chloride pentahydrate was studied.

在五水四氯化锡存在下，由氯乙酸和正丁醇合成氯乙酸正丁酯。

The synthesis conditions of n-butyl chloroacetate were studied applied solid superacid SO42-/TiO2 as catalyst under microwave irradiation.

在微波辐射下，以SO42-/TiO2固体超强酸为催化剂合成氯乙酸正丁酯。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。