甲基

By using efficient padding, fusel oil was exactly distilled twice after being preliminarily dealt with. And then we got highly pure 2-methyl -1-butanol and--2-methyl -1-butanol.

采用高效填料，通过对预处理后的杂醇油进行两次精密精馏，得到了高纯度的2-甲基-1-丁醇和--2-甲基-1-丁醇。

Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.

依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。

The effects of sodium starch glycolate as binder onthe disintegration and dissolution of the tablets of SD and Aspirin were inves-tigated compared with those binders such as HPMC,gelatin and starch.

实验考查了羧甲基淀粉钠作为粘合剂对磺胺嘧啶、阿司匹林片剂的崩解和溶出度的影响，并与羟丙基甲基纤维素、明胶和淀粉浆做了比较。

On average, the more often you see or hear something, the less likely it is to be dangerous. If it were deadly, it would have killed you on the first or second go-round.

你对于购买一种名为1-[3-(6，7-二氢-1-甲基-7-氧代-3-丙基-1H比唑并[4，3-d]嘧啶-5-基)-4-乙氧苯基璜基-4-甲基柠檬酸盐的药物能有多大的热情呢？

Four kinds of hapten with the similar structure of parathion-methyl were designed and synthesized. These four haptens were coupled with different length and structural spacer arms through nitro-group or methoxyphosphate group of parathion-methyl. Then six kinds of hapten-protein conjugates were synthesized by different methods.

根据甲基对硫磷的结构特征，分别从甲基对硫磷的硝基一端或磷酸酯基甲氧基一端引入一定长度的间隔臂和活性基团，设计并合成了 4种结构的半抗原；针对各种半抗原所带活性基团的性质，通过多种方法制备了与不同的载体蛋白偶联的人工抗原。

A novel carbonyl transposition led by anilines'nucleophilic addition to methyl 2-keto α-D-glucopyranoside was discovered. And the mechanism of the reaction concerned to an enol rearrangment was provided through tracing the change of 〓H-NMR and 〓C-NMR of a hemiacetal intermediate which was obtained in the reaction of o-phenylene diamine with 2-keto glycoside. Both the intermediate and the converting product were identified by 〓H-NMR,〓C-NMR,〓H-〓H COSY and HMQC.

一、发现了2-位氧化α-甲基D-葡萄糖苷的芳胺亲核加成引起羰基转位的新方法，利用核磁共振氢谱及碳谱对邻苯二胺与2-位氧化α-甲基D-葡萄糖苷加成生成的稳定中间体半缩酮化合物在氘代丙酮中的变化进行跟踪，结合对转化产物的氢氢相关谱和HMQC结构确证，提出了该反应中2-位羰基通过烯醇化互变而转至3-位的机理并得到了验证。

In the part two, we reported the classical Knoevenagel condensation between aromatic aldehydes and acyclic active methylene compounds or cyclic active methylene compounds containing heteroatom such as (2-thio)barbituric acid, Meldrum's acid using ionic liquids as reaction medium.

在第二部分中我们研究了离子液体中开链活性亚甲基化合物、杂环类活性亚甲基化合物如(2-硫代)巴比妥酸、Meldrum's酸与芳香醛之间的Knoevenagel缩合反应。

Using Hexamethylenetetramine as the catalyst and P-Hydroxyanisole as the inhibitor, glycidyl methacrylate were prepared by two-step method successfully.

本论文以六次甲基四胺为催化剂，对羟基苯甲醚为阻聚剂，采用酯化闭环两步法制备出甲基丙烯酸缩水甘油酯。

Chloro-2-methyl-4-acetoxy-2-butene was treated with hexamethylenetetramine, followed by hydrolysis to yield 4-acetoxy-2-methyl-2-butenal, a key intermediate for vitamin A .

1-氯-2-甲基-4-乙酰氧基-2-丁烯与乌洛托品成盐后水解，得到合成维生素 A的重要中间体4-乙酰氧基-2-甲基-2-丁烯-1-醛，用微波辐射可促进水解，反应0.5h收率可达77%。

Methods 4-Hydroxybenzonitrile (2) as the starting material was transformed to 4-hydroxy-thiobenzamide (3) via thioformylation. And ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate (4), which was synthesized via cyclization from 3, was treated with hexamethylenetetramine to generate the intermediate ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate (5). The target compound febuxostat (1) was obtained from 5 by etherification, cyanidation, hydrolysis.

以羟基苯腈为原料，经硫代甲酰化得到对羟基硫代苯甲酰胺(3)，3经环合得到2-（4-羟基苯基）－4-甲基－噻唑－5-羧酸乙酯(4)，4与乌洛托品反应，得到中间体2-（3-甲酰基－4-羟基苯基）－4-甲基－噻唑－5-羧酸乙酯(5)，之后再经醚化、氰化、水解得到目标产物(1)。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？