查询词典 methyl chloride

Simetryne was synthesized from cyanuric chloride, ethylamine, and sodium methyl mercaptide in a 50% isopropanol + water solution.

以三聚氯氰、乙胺和甲硫醇钠为原料，以50%异丙醇＋50%水为溶剂制备了西草净。

β-Methylhydrogen itaconate was prepared from itaconic acid and methyl alcohol with benzoyl chloride as catalyst.

摘 要：以衣康酸和无水甲醇为原料，酸性催化下酯化合成β-衣康酸单甲酯。

Carboxymethyl dimethyl sulfonium chloride as a novel aquatic feed attractant was synthesized with chloroacetic acid, methyl sulfide and in solvent free system.

运用无溶剂合成方法，利用较低成本的氯乙酸为原料与二甲硫醚反应，合成新型水产动物诱食剂——氯化羧甲基二甲基锍。

The results show that the yield of compound 5 reached a maximum of 65% under the optimum reaction conditions, where the pH of the reaction medium was 3.8~4.0, the reaction temperature was 85~90 ℃, and the molar ratio of zinc powder to compound 1 was 2.6:1. The optimum oxidant for the selective oxidation of α-methyl on compound 5 was sulfuryl chloride, and the yield of the product was 52.5%.

结果表明，合成化合物5的最佳反应条件为：反应介质pH值为3.8~4.0，反应温度85~90℃，锌粉与反应物1之间的摩尔比2.6：1，产物收率达到65%；化合物5中α-甲基选择性氧化反应的最佳氧化剂为硫酰氯，产物收率达到52.5%。

Treatment of 3-amino-4-chlorobenzoic acid with trimethoxymethane generated methyl 3-amino-4-chlorobenzoate in 80.0% yield.2-ethyl pivalate was oxidized by sulfuryl chloride,an...

所得中间体2-乙基特戊酸酯低温下经磺酰氯氧化，与中间体3-氨基-4-氯苯甲酸甲酯反应，所得产物经重排、水解和酰化反应得到目标化合物，总产率25.8%。

The influentical factors on the synthesis of L-serine methyl ester hydrochloride with thionyl chloride were studied and optimized.

对亚硫酰氯法制备L-丝氨酸甲酯盐酸盐的影响因素进行试验及优化，较佳工艺条件下酯化收率可达85.0%以上，产品含量≥98.0%。

Eleven molecular tweezer artificial receptors based on deoxycholic acid have been synthesized by using solid K2CO3 as supporter through the reaction of methyl deoxycholate with aroyl chloride in solvent-free conditions under microwave irradiation, five of which are new compounds. The structures of all the molecular tweezers were characterized by 1H NMR, IR, MS spectra and elemental analysis.

在微波辐射无溶剂条件下，以固体K2CO3为载体，脱氧胆酸甲酯与芳酰氯反应合成了11个脱氧胆酸分子钳人工受体，其中5个为新化合物，所有化合物的结构均经1H NMR， IR， MS及元素分析所确证。

The spectral characteristics and photolysis quantum yields of ACRM composed of vinylidene chloride-methyl acrylate(VdCl2-MA) copolymer and pentamethoxyl red were measured.

本文研究了由偏二氯乙烯-丙烯酸甲酯共聚合物(VdCl2-MA)和五甲氧基红指示剂组成的酸敏变色记录材料的光谱特性，测定了其光分解量子产率。

After the diazotization ,2-aminophenol-4-(2-'carboxy)sulfanil phenylamine was coupled with acetoacetanilide,2-naphthol,1-phenyl-3-methyl-5-pyrazolone,1-naphthol-4-sulfonic acid,separately to get the different diazotized compounds,then complexed with potassium chromium sulfate or cobaltous chloride to obtain the yellow,orange,red,purple,blue and other colour dyestuffs.

2-氨基苯酚-4-(2'-羧基)磺酰苯胺重氮化，分别与乙酰乙酰苯胺、2—萘酚、1-苯基-3-甲基-5-吡唑啉酮、尼文酸、1-乙酰氨基-7-萘酚等偶合，得到不同的偶氮化合物，然后分别与硫酸铬或氯化钴进行络合反应，得到黄、橙、红、紫、蓝多种颜色染料，并进行了毛织品的染色实验。

Methods Compound 3 was got via the formation of the amide from 2-chloro-3-amino-4-methyl pyridine and 2-chloronicotinoyl chloride, and then nevirapine was acquired by the aminolysis of 3 with cyclopropylamine in an autoclave, followed by the intramolecular nucleophilic substitution.

以2-氯－3-氨基－4-甲基吡啶为原料，依次与2-氯烟酰氯缩合成化合物3、再与环丙胺高压氨解、最后发生分子内亲核取代反应，成功合成了奈韦拉平。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。