查询词典 acylation

Aminobenzoic acid was used to synthesize 4'-methyl-2-cyanobiphenyl, which was one of medicine intermediates, by diazotization, acylation, substitution, and dehydration.

以邻氨基苯甲酸为起始原料，经重氮化、芳基化、取代和脱水等步骤合成药物中间体4'-甲基－2-腈基联苯。

The final section is an outlook for hydrazones in the areas of constructing chiral configurations and certain specific skeletons, based on their halogenation and acylation.

最后，在归纳腙类化合物的酰化、卤化等反应的基础上，对近年来有关腙用于有机合成构筑手性中心及环状骨架等研究成果进行了较完整的总结。

Reaction Chemistry of Aromatic Compounds - Electrophilic Aromatic Substitution: Halogenation, Nitration, Sulfonylation and Friedel-Crafts Alkylation and Acylation.

芳香化合物的化学反应--亲电芳香取代反应：卤化，硝基化，磺基化和Friedel-Crafts 烷基化和醯基化。

METHODS The target compound was synthesized from 3,4-dimethoxyphenylacetic acid via halogenation, acylation, cyclization, alkylation and iodine substitution reaction.

以3，4-二甲氧基苯乙酸为原料，经卤化、酰化、环合、烷基化、碘取代等反应制得目标化合物。

Methods:The target compounds were synthesized from acylation of polyethylene glycol to hydroxy group of ursolic acid by polymer polycondensation method.

通过高分子缩合的方法，将酰化的聚乙二醇接枝到熊果酸的羟基上，得到目标产物。

Highly selective acylation at C-5 of indole was realized and a new method was established in the synthesis of TIMs.

采用三氟乙酰基作为吲哚C-3的保护基团，在路易酸催化下使吲哚的酰化反应高选择性地发生在5-位。

Many risk,hazard and environmental factors are existing in the acylation process of N-formylmorpholine from morpholine.

吗啉酰化合成甲酰吗啉过程存在诸多安全与环保的危险、有害因素。

In this paper six carbazole oxime ester derivatives were synthesized through Friedel-Crafts acylation, oximation and esterification from N-alkyl-carbazole.

以N-烃基咔唑为原料，经Friedel-Crafts 酰化、成肟和酯化反应，合成了6种咔唑肟酯衍生物。

X-ray photoelectron spectroscopy was employed to analyze the surface chemical properties of specimens of acid treatment and acylation reaction.

利用X射线光电子能谱对酸氧化及酰氯化处理后的样品进行了表面化学性质分析。

A new method for synthesizing rosin allyl alcohol ester was studied. p-Toluenesulfonic acid allyl alcohol ester was first synthesized by O-acylation of allyl alcohol with p-toluene sulfonyl chloride, using NaOH as catalyst. Then rosin allyl alcohol ester was synthesized from sodium resinate and p-toluenesulfonic acid allyl alcohol ester.

探索了一种两步合成松香烯丙醇酯的新方法，即先以烯丙醇和时甲苯磺酰氯为原料，以NaOH为催化剂，通过O-酰化反应合成中间体对甲笨磺酸烯丙醇酯，再与松香钠皂发生亲核取代反应合成目标产物松香烯丙醇酯。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。