The isomerization of 2-methyl 1-butylene(2MB1) to 2- methyl 2-butylene(2MB2) was carried out over a resin catalyst.
在酸性树脂催化剂上进行了2甲基1丁烯（2MB1）的异构化，得到了高2 甲基2 丁烯含量的异戊烯产品。
Objective To explore the curative effects of 1 (3 fluorophenyl) 5 methyl 2 (1H) pyridone (FMP) on renal fibrosis in rats.
目的：探讨1 （3氟苯基）5甲基2 （1H）吡啶酮对鼠肾纤维化的治疗作用。
The enzymes in question are histone acetyltransferase (which adds acetyl groups to proteins) and methylated DNA-binding protein-2 (which removes methyl groups from DNA).
这两种酶是组蛋白乙酰转移酶(它能给蛋白质添加乙酰基)和甲基化dna结合蛋白- 2(它能把DNA上的甲基去除)。
Around midnight on Dec. 2, 1984, an accident at a Union Carbide pesticide plant in Bhopal, India, resulted in 45 tons of poisonous methyl isocyanate escaping from the facility.
1984年12月2日午夜，位于印度博帕尔的联合碳化物公司的农药厂发生事故，导致45吨的有毒异氰酸甲酯从设备中泄露。
The preparation of 2 methyl 6 tert butylphenol was introduced and the effects of catalyst, time and temperature of reaction on yield of product were discussed.
介绍了2 -甲基-6 -特丁基苯酚的制备方法，探讨了催化剂、反应温度和反应时间对产品收率的影响。
Imazethapyr is synthesized from 3 - methyl - 2 - butanone. Butyraldehyde, nucochloric acid or diethyl oxalate by eight steps reaction.
咪草烟的合成可以用3-甲基-2-丁酮、正丁醛、 粘氯酸或草酸二乙酯等原料，经八步反应制得。
A method was established for determining two intermediates in synthesis of imidacloprid, 2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC.
建立了用高效液相色谱法同时测定农药吡虫啉中间体2 -氯-5 -甲基吡啶和2 -氯- 5 -氯甲基吡啶含量的方法。
The synthetic method of perfume 2 - methyl - 3 - methoxy pyrazine was investigated and better reaction conditions have been found.
利用相转移催化法合成香料2-甲基-3 甲氧基吡嗪，并对其反应条件进行探讨，找到较佳的反应条件。
Using the new method, 2 hydroxy 3 cyanmethyl 5 methyl acetophenone was synthesized in a short reaction period, and the yield was good.
采用新方法合成了鲜见文献报道的新化合物2 -羟基-3-氰甲基-5 -甲基苯乙酮。该方法具有反应时间短、操作简便、收率好等优点。
Application of oleanane-28-carboxylic methyl ether-2, 11, 13 (18) -triene in preparing medicament for treating skin diseases.
齐墩果烷- 28 -羧酸甲酯- 2,11,13(18)-三烯在制备治疗皮肤疾病药物中的应用。
METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.
方法：以5 氯2 羟基苯甲酸甲酯为原料，经硝化、还原等九步反应合成。
A new method of synthesis of 2 (nitroimino) imidazolidine from methyl thiocyanate with the recovery of 56.5% is presented.
报道了以硫氰酸甲酯为原料合成咪唑烷的方法， 总收率为56-5 ％ 。
Oxyquinoline and methyl-2(1H)-quinolinone were the intermediate degradation products of quinoline and methyl quinoline respectively.
喹啉和甲基喹啉的降解可生成羟基喹啉和甲基2（1H）喹啉酮中间产物。
The quantitative relationships between the catalytic ability of Rh-complex of 2-vinyl pyridine-methyl methacrylate copolymer and the sequence structures of the copolymer ligands have been determined.
本工作定量测定了2-乙烯基吡啶-甲基丙烯酸甲酯-铑络合物的烯烃催化加氢性能与共聚物配体序列结构的关系。
With kBrO3 to oxidize 2- methyl naphthalene in acidic solution to produce 2- methyl naphthoquinone.
用溴酸钾在酸性溶剂下氧化2-甲基萘制备2-甲基萘醌。
Results showed 2-methyl butyric acid was the characteristic product of C. difficile and was wrong identified as isovaleric acid by others.
结果表明2-甲基丁酸是艰难梭菌的特征性产物，以前曾被其他作者错误地鉴定为异戊酸。
From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
二氢-2-甲基-4-苯基-1，5-苯并硫氮杂卓与重氮乙酸乙酯反应，得到非预期的分子内重排的开环产物。
The experimental results of adsorption spectroelectrochemistry indicate that the electrochemical reductive product of VK3 is 2-methyl -1,4-naphthylenediol.
吸收光谱电化学实验结果表明维生素K_3电化学还原产物为2-甲基1，4-萘酚。
A new polymeric surfactant using for acrylic acid waterborne coatings was prepared from the methyl acrylic acid, styrene, hydroxyethyl acrylate and 2-ethylhexyl acrylate.
以甲基丙烯酸、苯乙烯、丙烯酸羟乙酯和丙烯酸- 2 -乙基己酯为主要原料，通过溶液共聚法合成了用于丙烯酸酯水性涂料的高分子表面活性剂。
Experiments demonstrated that Anti-2- nonyl olefin aldehyde, furan aldehyde and 2-methyl aldehyde etc. had direct relation with aging flavor.
经实验证明反-2-壬烯醛、呋喃醛、2-甲基醛等与老化味存在着直接关系。
Objective To establish a efficient, applicable, rapid method for determination of 2- Propenoic acid methyl ester etc 6 kinds of hazardous substance in air of workplace at one time.
目的建立一种高效实用快速的工作场所空气中丙烯酸甲酯等6种有害物质气质联用同时测定方法。
Methods: 2 methyl aniline as the material, quinazolines were designed and synthesized;
方法：以邻甲苯胺为原料设计并合成喹唑啉类化合物；
Objective: To study the synthesis of methyl 4-aryl-thiophene-2-carboxylate derivatives.
目的：研究2 -甲氧羰基- 4 -芳基噻吩衍生物的合成工艺。
The mechanism and kinetics for the decomposition of 3-hydroxy-3-methyl-2-butanone and methyl benzoylformate have been studied by using the ab initio RHF/6 - 31G method.
用从头算的方法在6-31G水平上研究了3-羟基-3-甲基-2-丁酮（1）和苯甲酰甲酸甲酯（2）热分解反应的机理。
A new optically active monomer of 4(S)—2—Methyl—4—Methoxycarbony1—2—Oxazoline has been synthesized from L—serine.
以L—丝氨酸为原料，合成了旋光纯度很高的4（S）—2—甲基—4—甲氧羰基—2—恶唑啉单体。
This paper describes the application of N-methyl-2-bromo-pyridium halide as a condensing reagent in peptide synthesis.
本文介绍了N-甲基-2-溴代吡啶卤化盐在多肽合成中应用的研究结果。
The fruity type flue-cured tobacco essence mainly consists of trans-2-hexenal, hexenyl formate, methyl acetate, red date tincture, hawthorn tincture and the like.
该果香型烤烟香精主要由反-2-己烯醛、甲酸叶醇酯、乙酸薄荷酯、枣子酊、山楂酊等组分组成。
The fruity type flue-cured tobacco essence mainly consists of trans-2-hexenal, hexenyl formate, methyl acetate, red date tincture, hawthorn tincture and the like.
该果香型烤烟香精主要由反-2-己烯醛、甲酸叶醇酯、乙酸薄荷酯、枣子酊、山楂酊等组分组成。
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