类化

This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

本文综述了光气下游精细化学品开发及产进展,包括苯甲酮类、氯代甲酯类、异氰酸酯类、酰氯类、碳酸酯类化合。

Dibenzofuran(DF) is one of the model compounds for the study of biodegradation of dioxin-like pollutants.

苯并呋喃(DF)是研究英类化合降解模式化合之一。

Three novel malononitrile derivatives have been synthesized by the solid state reaction at room temperature.

固相反应合成了新腈类化合。

Continued research on the Podophyllum lignans is currently focused on structure optimization to generate deriv...

优化结构、寻找新鬼臼毒素类化合资源替代品,已成为当前进一步研究主要方向。

Objective To separate flavonol and flavanonol by the column chromatography of polyamide.

目采用聚酰胺柱色谱分离黄酮醇氢黄酮醇类化合。

This paper discussed three methods of producting vinyl etherspreparation from acetylene,dehydrohalogenation and acetals.

论述了乙烯基醚类化合三种主要制备方法乙炔法、脱卤化氢法和缩醛热分解法。

In this gaper, the developments md study on biologically activeisoxazole derivatives and their applications in pesticide and medicine were reviewed.

许多异恶唑衍显示良好活性，并被开发成为农用化学品和医用化学品。本文对这类化合研究开发动态进行了概述。

This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.

本文主要介绍了以30%浓度双氧水作为氧化剂氧化硫脲、氨基硫脲来制备相应脲和氨基脲类化合。

The standards of polyphenols were used to identify the phenolic compounds in napiergrass and their changes due to growth period and season.

另外，利用十种酚类化合为标准品，测定不同长期季节之狼尾草中酚类化合之变化。

In order to get polyaryloxyphosphazene, polyphosphazene's side chlorines are directly substituted by aryloxy of phenol using triethylamine as the bind acid agent.

然后以三乙胺为缚酸剂，使高聚氯化磷腈直接酚类化合进行取代反应，合成了标题高聚。

More and more attention is being paid to their functions in anti-cancer, analgesia, regulating cholesterol level in the human body，preventing atheroma，deinsectization and other aspects.

柠檬苦素类化合在抗癌、镇痛、调节体内胆固醇水平、防止动脉粥样化和除虫等方面作用，越来越受到人们重视。

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

芳基甲烷在有机溶剂介质中、碱催化下氧化缩合反应,是合成苯乙烯(烷)类化合重要途径.

Finally, we gained four esterifiable quinolone analogues (compounds 22 to 25) by modifying the structures of compound 3, 14 and 16 on 3 position.

同时利用所合成化合3，14，16为模板，对它们3位羧基进行了酯化反应合成了4个喹诺酮酯类化合：化合22—25。

The structure of neostellerin, which was elucidated by NMR, especially 2D NMR analysis, was different from other daphnane type diterpenes isolated from this plant.

其中新狼毒素其它从该种植中所分离得到瑞香烷萜类化合有不同之处。

Aqueous titanium trichloride promoted intermolecular reductive cyclization of 1,2 -diketone and o-nitroaniline in basic media provides a convenient method for the synthesis of quinoxaline derivatives.

本文研究了三氯化钛水溶液作用下,邻硝基苯胺1,2-酮在碱性介质中分子间成环反应,提供了一个方便地合成取代喹喔啉类化合方法。

Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind.

摘要链状冠醚芳醛在酸性条件下氨基硫脲反应，合成了链状冠醚芳醛缩氨硫脲类化合。

Four compounds of phosphite ester and phosphoramide containing azido groups were synthesized. The molecular structure of the products has been confirmed by IR，1HNMR，FAB-MS and elemental analysis.

首次合成了叠氮亚磷酸酯及叠氮磷酰胺类化合，并用IR、1HNMR、FAB-MS及元素分析对化合结构进行了鉴定。

Chromene and its derivatives are a large class of natural product.A lot of Chromene and its derivatives have biological activity.A natural chromene was separated in 1986.

苯并吡喃类化合及其衍是一大类天然产,很多都都具有活性,苯并吡喃天然产1#在1986年被分离得到。