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Compound 2 had allochroic processes in polar solvents such as methanol or DMF. Acids or alkali such as acetic acid or NaOC_2H_5 also showed apparent influence on the allochroic process.

并对化合物2的变色过程进行了研究,发现该化合物对极性溶剂如甲醇、N,N-二甲基甲酰胺和酸或碱如乙酸、乙醇钠等具有良好的变色过程。

Anodic oxidation ; alumite catalyst ; methanol decomposition ; treatment of automotive emission ; removal of VOC

阳极氧化;催化剂;甲醇分解;汽车尾气净化;微量有机化合物脱除

SA catalyzed the amidation of benzhydryl alcohol in good to excellent yields under solvent-free condition.

加热条件下磺氨酸可以催化磺酰胺和酰胺类化合物与二苯甲醇的取代反应,生成新的取代胺类化合物。

This thesis mainly studied on sulfamic acid catalyzed Cross-Aldol condensation, direct amidation of benzhydryl alcohol; solid base catalyzed synthesis of bisindoles was also discussed.

本论文主要讨论了磺氨酸催化下的Cross-Aldol反应;二苯甲醇的胺化反应;固体碱氟磷灰石催化的双吲哚甲烷衍生物的合成。

The general formulas of these compounds are as follows:The strobilurin derivatives were synthesized from substitutedβ-keto esters (2) as starting material which were prepared from substituted ketones (1) and dimethyl carbonate. The ester (2) and methyl hydrazine or substituted amidine were dissolved in methanol and the mixture was heated to reflux to obtain the substituted 5-hydroxy-1H-pyrazole (3) or 4-hydroxy-pyrimidine (4). The title compounds were prepared by reacting the intermediates (3 and 4) with substituted halomethylphenyls which contain four active group under basic conditions.

本论文所合成的strobilurin化合物均是以β-酮酸酯类化合物(2)为起始原料合成的,该中间体(2)是由酮类化合物(1)与碳酸二甲酯在碱性条件下反应生成的,中间体(2)与甲基肼或取代脒类化合物在甲醇中回流制得取代的1H-5-羟基吡唑(3)或4-羟基嘧啶(4),中间体(3和4)再与包含四种活性基的苄卤中间体在碱性条件下制得目标化合物。

The genera formulas of these compounds are as follows:The strobilurin derivatives were synthesized from substitutedβ-keto esters (2) as starting material which were prepared from substituted ketones (1) and dimethyl carbonate. The ester (2) and methyl hydrazine or substituted amidine were dissolved in methanol and the mixture was heated to reflux to obtain the substituted 5-hydroxy-1H-pyrazole (3) or 4-hydroxy-pyrimidine (4). The title compounds were prepared by reacting the intermediates (3 and 4) with substituted halomethylphenyls which contain four active group under basic conditions.

本论文所合成的strobilurin化合物均是以β-酮酸酯类化合物(2)为起始原料合成的,该中间体(2)是由酮类化合物(1)与碳酸二甲酯在碱性条件下反应生成的,中间体(2)与甲基肼或取代脒类化合物在甲醇中回流制得取代的1H-5-羟基吡唑(3)或4-羟基嘧啶(4),中间体(3和4)再与包含四种活性基的苄卤中间体在碱性条件下制得目标化合物。

In connection with the character of Boc L-Glutamic Acid and aminoacetic acid structures, the reaction of aminoacetic acid acylated via Boc Anhydride has been studied on the condition of CH3OH in the paper. The yield of the derivatives is characterized by the melting point, the content of carboxylgroup and the product purity. The results showed that the best experiment condition is followed.

本论文以甲醇作为均相反应介质,Boc酸酐与谷氨酸为原料,在碱性条件下,以产物的熔点,羧基含量以及产物纯度作为产物质量确定的指标,最终得出N-Boc-谷氨酸的合成最优条件。

D., 5m. The mobile phase consisted of a ternary gradient: methanol, 0.8% acetic acid and 0.01mol/L ammonic acid.

d。,5m上,以甲醇-0.8%乙酸-0.01mol/L乙酸铵溶液组成的三元流动相进行洗脱分离,紫外280nm检测。

It has good control effect, and its action mode has stomach poison, contact killing, antifeedant, fumigation and anesthetization.

发明人多年来对雷公藤根、茎、叶等植物组织用酸水提取法、乙醇提取法、氯仿热提甲醇沉淀法提取的浸提物进行了杀虫谱和杀虫效果的研究,发现雷公藤浸提物对众多农业害虫和园林树木害虫具有较好的防治效果,其对害虫的作用方式有胃毒作用、触杀作用、拒食作用、熏蒸作用、麻醉作用。

Under isocratic elution conditions with aquo _ methanol mobile phases, the plots of logarithmic capacity factor of porcine insulin versus the volume fraction of the organic solvent modifier are highly linear.

当以甲醇溶液为流动相时,猪胰岛素保留因子的对数值随流动相有机溶剂体积分数的变化呈现很好的线性关系。

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