查询词典 benzyl

The effects of catalyst amount, mole ratio of sodium benzoate and benzyl chloride, reaction time on the esterification rate were studied.

考察了催化剂用量、釜残液与氯化苄的物质的量的比和反应时间对收率的影响。

Cu complex of the surfactant have water soluble ability and surface activity, can catalyze the air oxidation of benzyl alcohol or Benzoin not only in DMF solution but also in alkali water solution.

表面活性剂铜配合物具有较好的水溶性和表面活性，不但在DMF溶剂中有效催化苯甲醇、安息香的空气氧化反应，而且在稀碱溶液中形成的金属胶束也可催化氧化苯甲醇。

Ophenyl phenol,ophenyl phenol sodium salt tetrahydrate,7ADCA,2ethyl phenyl hydrazine hydrochloride,2,3dihydrofuran,7ethyl3(2hydroxy ethyl)indole,methyl ester of etodolac; 1,8diethyl1,3,4,9tetrahydropyrano[3.4b] indole1acetic acid methyl ester,5chloro2methoxy benzoic acid,4(2aminoethyl)benzene sulfonamide,5cyano phthalide,phthalhydrazide,9thioxanthenone,n[(1,4benzodioxane2yl)carboxyl]piperazine HCL,2chloro4amino6,7dimethoxyquinazoline,2chloro benzimidazole,1(4fluorobenzyl)2chlorobenzimidazole,2methylthio4pyrimidone,5amino4imidazole carboxamide HCL,6chloro2hexanone,11oxo6.11hydrodibenzothiepin,6,11dihydrodibenzooxepin11one,10,11dihydrodibenzocyclohepten5one;dibenzosuberone,dibenzo cyclohepten5one;dibenzosuberenone,3,5dihydroxy benzoic acid,3,5dihydroxy benzyl alcohol,2mercapto benzimidazole,3,4dihydroxy benzaldehyde,3,4dihydroxy benzonitrile,2amino5chloro benzonitrile,2(4chlorophenoxy)ethyl chloride,2(4chloro phenoxy)tert,butane,ditrimethylol propane;DTMP,2,2bis(4hydroxyphenyl)butane; bisphenol B,1,1'bis(4hydroxyphenyl)cyclohexane;bisphenol Z,tetrabromobisphenolS,3,5ditertbutyl salicylic acid,3,4,5trihydroxy benzoic acid stearyl ester,1,2,4trimethoxybenzene.

华业公司产品：邻苯基苯酚，邻苯基苯酚钠盐，7氨基3去乙酰氧基头孢烷酸，邻乙基苯肼盐酸盐，2，3二氢呋喃，7乙基色氨醇，依托度酸甲酯，5氯2甲氧基苯甲酸，4(2氨乙基)苯磺酰胺，5氰基苯酞，双酮酞嗪，9噻吨酮，N〔(1，4苯并二恶烷2基)羰基〕哌嗪盐酸盐，2氯4氨基6，7一二甲氧基喹唑啉，2氯苯并咪唑，1(4氟苄基)2氯苯并咪唑，2甲硫基4嘧啶酮，5氨基咪唑4 甲酰胺盐酸盐，6氯2已酮，11氧6.11二氢苯并〔b.c〕虑平，11氧代6，11二氢二苯并氧杂卓，10，11二氢二苯并环庚烯5酮，二苯并环庚烯5酮，3，5二羟基苯甲酸，3，5二羟基苯甲醇，2巯基苯并咪唑，3，4二羟基苯甲醛，3，4二羟基苯腈，2氨基5氯苯腈，2(4氯苯氧基)1氯乙烷，2(4氯苯氧基)叔丁烷，双丙烷，2，2二(4羟基苯基)丁烷；双酚B，1，1'双(4羟基苯基)环己烷；双酚Z，2[3，5二溴4(2，3二溴丙氧基)]苯砜，3，5二叔丁基水杨酸，3，4，5三羟基苯甲酸十八烷基脂，1，2，4三甲基氧基苯。

The experiment showed that this separation method is feasible and benzyl benzoate with purity about 90% and fluorenone products with purity of more than 85% were obtained. Furthermore the effects of tower top pressure, temperatures of tower top and bottom, reflux ratio on product purity were analyzed.

试验表明该方法是切实可行的，并获得了纯度为90%左右的苯甲酸苄酯产品和85%以上的苏酮产品；同时探讨了塔顶压强、塔顶和塔釜温度、回流比变化对产品纯度的影响，获得了试验条件下的最佳操作条件。

Of the total volatile substances detected; the major volatile compounds were borneol, isoborneol and benzyl benzoate.

主要挥发性组分是冰片、异冰片和苯甲酸苄酯。

Benzyl p amino benzoate ; PTC ; synthesis ; orthogonal design.

对氨基苯甲酸苄酯；合成；相转移催化；正交设计

To be studied the preparation technology of benzylalcohol from benzyl benzoate in high yield, The relation of the amount of NaoH, the amount of water, the time, the temprature on the yield of benzylalcohol are discussed, The method of improving benzylalcohol yield were determinded, The highest yield of the benzylalcohol is 90%.

利用甲苯氧化生产苯甲酸装置苯甲醛塔底物料制备苯甲醇的方法，讨论了碱量、水量、反应时间、反应温度与苯甲醇收率的关系，探讨了提高苯甲醇收率的方法，苯甲醇收率基本达到90%以上。

After enriched by flash, benzoic acid-containing fraction was obtained below 210 ℃ and benzyl benzoate -fluorenone-containing fraction was between 220 and 260 ℃,then these fractions were separated by vacuum distillation respectively.

废料通过闪蒸，在210℃以下得到了富集苯甲酸馏分，在220—260℃之间得到了富集苯甲酸苄酯和芴酮馏分；之后对各馏分进行高真空减压精馏，得到了苯甲酸、苯甲酸苄酯和芴酮等产品，纯度分别可达95%，91%和92%。

Methods: A Diamonsil C18 column was used with the mobile phase of 0.1% ammonium acetate solution-methanol (10:90) at the detection wavelength of 240 nm. The flow rate was 1.0 mL/min. Benzyl benzoate was used as internal standard.

采用Diamonsil C18柱，流动相为0.1%乙酸铵溶液：甲醇(10：90)，流速1.0 mL/min，检测波长240 nm，以苯甲酸苄酯为内标。

TheSaudi king Abdullah gave Cheney the most benzyl benzoate on the list,which is required to make public under US law --a55,000-dollar,18-karatwhite gold,ruby and Bipolar Radio Frequency System .

沙特阿拉伯国王阿卜杜拉送给副总统切尼的一套18克拉的白金、红宝石和钻石首饰是" ADSENSE报告"中最名贵的礼物，按照美国法律规定，这套价值5.5万美元的礼品得上交政府。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。