benzyl

This experiment filtrates the benzyl penicillin strain with high yield by mutagenesis the benzyl penicillin strain No. 232 which available and used for the manufacture.

本试验通过用化学诱变剂对现有青霉素生产菌株232~进行诱变育种，筛选高产菌株。

互联网摘选

What is the action of capsule of yellow easy of third of ammoniac benzyl Xilin?

氨苄西林丙黄舒胶囊的作用是什么?

互联网摘选

METHODS: The target compound was synthesized from N-benzyl protected aminoacetophenone through hydrogenation, benzoylation and reduction.

方法: 以氮 - 苄基保护胺基酮为原料,经氢化, 苯甲酰化,还原三步合成双苯甲酰沙丁胺醇酯.

互联网摘选

The method of catalytic synthesis of benzyl cinnamate with hexadecyl trimethyl ammonium chloride as phase transfer catalyst is studied. The factors influencing the reaction, such as amount of catalyst used, reaction temperature and time, molar ratio of sodium cinnamate to benzyl chloride are investigated.

以十六烷基三甲基氯化铵为相转移催化剂催化合成肉桂酸苄酯，考察了催化剂、温度、时间和物料配比等因素对反应的影响。

互联网摘选

Benzyl alcohol is the most important aromatic alcohol. Nowadays benzyl alcohol is synthesized by the hydrolysis of benzyl chloride in the presence of alkali, but with almost 10-20% benzyl ether, the by-product.

苯甲醇是最简单的，也是最重要的芳香醇，目前合成苯甲醇主要是通过氯化苄直接碱性水解，但是现有方法的副产物二苄醚含量达到10%～20%。

互联网摘选

Polystyrene-supported N-benzyl-N-alkyl-aminopyridine was prepared through chloromethylated polystyrene treated with 4-aminopyridine and alkylation agents.

本文以聚苯乙烯氯球为原料,通过与 4- 氨基吡啶及烷基化试剂反应,制成聚苯乙烯支载N - 烷基-N-苄基氨基吡啶催化剂.

互联网摘选

Benzyl cinnamate was synthesized by a two-step reaction: cinnamic acid reacted with thionyl chloride giving cinnamyl chloride and cinnamyl chloride was then reacted with benzyl alcohol giving benzyl cinnamate whose structure was characterized by IR, 1H NMR and MS.

第一步将肉桂酸制成肉桂酰氯，第二步将肉桂酰氯与苄醇反应制得肉桂酸苄酯。结构经IR，1H NMR和MS确证。

互联网摘选

This is a generally known method for obtaining phenylnitromethane from benzyl cyanide.

从苯乙腈制取苯基硝基甲烷就用这个方法.

词典精选例句

Tetrabromobisphenol A-di ( o-chloro benzyl ) ether is a novel efficient flame retardant.

四溴双酚A - 双 ( 邻氯苄基 ) 醚是一种新型高效阻燃剂.

互联网摘选

The coker gas oil was refined by benzyl alcohol extraction.

以苄醇为溶剂,用萃取方法提高了焦化柴油的质量.

互联网摘选

By using sodium hydrogen sulfate as the catalyst , benzyl alcohol and propionic acid reacted to propionate.

选用乙醇和水作为溶剂,实现亚硫酸氢钠对异氰酸酯的良好封闭.

互联网摘选

DNA filamentous fungi could be provided by the modified with benzyl chloride.

本文采用改进的氯化苄法,得到的DNA质量好、产量高,可以直接用于后续的基因操作.

互联网摘选

Under the optimum reaction conditions, the yield of benzyl propionate could reach 87.9 %.

在最佳反应条件下, 丙酸苄酯的收率可达87·9%.

互联网摘选

Penicillin of hydroxide ammonia benzyl: Action is stronger than ammoniac benzyl penicillin.

羟氨苄青霉素：作用比氨苄青霉素强。

互联网摘选

Using sodium cinnamate and benzyl chloride as raw material, diethylamine as catalyst, benzyl cinnamate is synthesized directly under normal pressure and microwave irradiation. The effects of amount of catalyst, power and time of microwave irradiation on yield are studied.

以肉桂酸钠和氯化苄为原料，二乙胺作催化剂，采用微波辐射技术，在常压下直接合成肉桂酸苄酯，考查了催化剂用量、微波辐射功率和辐射时间对酯产率的影响。

互联网摘选

Synthesized of benzyl oxide was using iodine catalyst dehydration for benzyl alcohol.

以单质碘为催化剂直接由苄醇催化脱水生产苄醚.

互联网摘选

The synthetic method of trichloromethyl-benzyl-alcohol and trichloromethyl-benzyl-alcohol-acetate were reviewed , and the application of rosone were introduced.

讨论了三 氯甲基 苄醇和三 氯甲基 苄醇乙酸酯的合成方法,介绍了结晶玫瑰的应用.

互联网摘选

The Benzyl acetate was prepared from benzyl chloride and sodium acetate by phase transfer catalysis.

实验以氯化苄、醋酸钠为原料,研究了在相转移催化剂的存在下,一步反应制得乙酸苄酯的合成工艺.

网络文摘精选

The yield of benzyl chloride based on toluene was 92 % under proper conditions.

在适宜条件下,甲苯生成氯化苄的收率可达92%.

互联网摘选

Benzyl Benzoate was directly synthesized from benzyl chloride and sodium benzoate under the condition of microwave irradiation and phase transfer catalyst without any organic solvent and inorganic carrier.

采用微波辐射反应技术，利用相转移催化剂，将苯甲酸转化为苯甲酸钠后，在无有机溶剂和无机载体的条件下与氯化苄直接酯化合成苯甲酸苄酯。

互联网摘选

Benzyl benzoate was synthesized by the esterification of sodium benzoate and benzyl chloride in the presence of water and triethylamine which was taken as the phase transfer catalyst.

研究了在有水存在下，利用相转移催化剂三乙胺催化苯甲酸钠和氯化苄的酯化反应。

互联网摘选

The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article.

由苯甲酸钠和氯化苄通过相转移催化法合成了苯（甲）酸苄酯，考察了几种季铵盐类相转移催化剂的亲核取代反应性能。

互联网摘选

The p-tolyl benzyl ether was synthesized by reaction ofp-cresol and benzyl chloride in95% ethanol as solvent and under microwave irradiation.

以95%的乙醇为溶剂，以氯化苄和对甲苯酚为原料利用微波辐射加热合成对甲苯基苄基醚。

互联网摘选

Under optimum condition the yield of benzyl acetate for 3 hours at boiling is over 96 %.

在最佳反应条件下乙酸苄酯的产率可达96%以上.

互联网摘选

The catalytic hydrolysis of benzal chloride and benzyl chloride mixture was studied, benzal chloride forming benzaldehyde in 95% yield, while the benzyl choride unreacted.

研究了亚苄基二氯和苄基氯混合物的催化水解反应，亚苄基二氯水解率达95%，而苄基氯不发生化学反应。

互联网摘选

Treatment with benzyl-penicillin are effective. Mutagenesis breeding of benzyl penicillin strain

青霉素治疗有效，未发现不良反应。青霉素产生菌的诱变育种

互联网摘选

The material with benzyl group as the linker shows higher catalytic activity and enantioselectivity than the material with propyl group as the linker, which is mainly due to the spacial rigidity and electron-withdrawing ability of the benzyl group.

研究表明以苄基作为环己二胺联结链的材料的催化活性和光学选择性高于相应的以丙基为联结链所得的材料，这主要归因于苄基的空间刚性和较强的吸电子性质。

互联网摘选

In this paper, benzyl acetate acid was produced from benzoic acid and benzyl alcohol under microwave radiation, using sodium acid sulfate, amino sulfonic acid and p-toluenesulfonic acid as catalysts.

本文采用微波辐射技术，选取硫酸氢钠、氨基磺酸、对甲苯磺酸等三种催化剂，以苯甲酸和苯甲醇为原料在微波辐射下催化合成苯甲酸苄酯。

互联网摘选

Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.

以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.

互联网摘选

Synthesis of ethyl iso nicotinate using BTEAC ( benzyl triethyl chloride ) as phase transfer catalyst was studied.

以BTEAC ( 苄基三乙基氯化铵 ) 为相转移催化剂合成了异烟酸乙酯.

互联网摘选