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heterocyclic adj.【化學】雜環型的。

heterocyst

Heterocyclic quinoxalin and its derivatives are useful as highly active benzopyrazine compounds . this article introduced recent progress of these important intermediates as medicine , fungicide , pesticide , herbicide , growing inhibitors of plants , new fluororescent probes and dyestuff intermediates . the structural - activity relationships of different quinoxalin derivatives were also illustrated 喹喔啉類化合物具有眾多生物活性,可用于殺菌劑、殺蟲劑、除草劑、植物生長調節劑、熒光探針以及染料中間體等領域,是一類重要的雜環化合物.本文綜述了喹喔啉類化合物的生物活性研究進展,探討了不同喹喔啉衍生物的構效關系

A review with 44 references is given on recent development of heterocyclic azo compounds ' application in spectrophotometric analysis of copper , zinc , and iron in biological sample including three kinds of heterocyclic azo compounds : pyridylazo compound , imidazolylazo compound , and triazolylazo compound 摘要綜述了近年來應用偶氮類顯色劑測定生物樣品中銅、鋅、鐵的光度分析發展狀況,從吡啶偶氮類試劑、咪唑偶氮類試劑以及三氮唑偶氮類試劑加以歸納,引用文獻44篇。

This course requests students to know well the structure , name , the property , the organic functions groups compound converts each other and law , stereoscopic chemistry characteristic of the organic compound ( do not contain the heterocyclic compounds , sugar , terpenoids and the steroids ) , to acquaint with that the organic chemistry of the typical reaction process and the general method of study organic chemistry ; understand each kind of representative ' s organic compound and its application 本課程要求學生掌握有機化合物(不含雜環、糖類、萜類及甾體化合物)的結構、命名、性質、官能團化合物之間的相互轉換及其規律和立體化學特征;熟悉典型的有機化學反應歷程及有機化學研究的一般方法;了解各類代表性有機化合物及其應用。

By using sterically hindered , electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ) , this process has encompassed a broad range of substrates including ketones , aldehydes , esters , amides , malonates , nitrocompounds , nitriles and sulfones 隨著大位阻、富電子烷基膦和氮雜環卡賓( nhc )為配體的催化體系的出現,該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、砜等。

The pyrazoles ramification containing dithioether is synthesized by one - step method and characterized by h - nmr , ir and uv - vis spectra . the heterocyclic compound can be applied in the field of pesticide 摘要本文通過對反應的優化,采用一步法合成出含有連二醚的吡唑衍生物。并采用氫核磁共振,紅外光譜和紫外吸收光譜等手段進行了表征。這類化合物有可能應用于農藥領域。

Jointly initiated by china academy of engineering physics and russian academy of science in 1993 , lier chemical is a china foreign joint venture mainly engaged in the r & d , application and marketing of various heterocyclic chemical products 利爾化學是1993年由中國工程物理研究院和俄羅斯科學院發起,以研發、生產、應用和銷售雜環類化學品為主的中外合資企業。

The application of microwave irradiation in the synthesis of six - member heterocyclic compounds are reviewed through two sections : 1 ) oxygen - bearing six - member heterocyclic compounds ; 2 ) nitrogen - bearing six - member heterocyclic compounds 摘要對微波技術在合成六元雜環化合物中的應用作了概述,主要論及: 1 )含氧六元雜環化合物; 2 )含氮六元雜環化合物。

Recently , the enaminones were widely used as intermediates , and the article mainly reviews the synthesis of enaminones and the usage as intermediates in organic synthesis , especially heterocyclic synthesis 摘要烯胺酮是目前應用較為廣泛的有機合成中間體,對其合成及其作為中間體在有機化合物特別是雜環化合物的合成中的應用進行了綜述。

Manufactures a range of brominated aromatics , phenylhydrazine and hydrazide derivatives , heterocyclic compounds , and a series of other intermediate chemicals . also imports and trades in several organic chemicals - d -對羥基苯甘氨酸, d -對羥基苯甘氨酸鄧鉀鹽,雌莫司汀磷酸鈉,雌二醇氨芥磷酸鈉的生產廠家。

Procedures for the preparation of isothiocyanates were synthesized in this paper . the applications of isothiocyanates in the heterocyclic synthesis and biotechnology were introduced 摘要本文綜述了異硫氰酸酯的實驗室制備方法,并介紹了其在雜環化合物合成及生物技術等方面的應用。

Research from the nci has shown that overcooking meat creates chemicals called heterocyclic amines , which have been linked to cancer in animals . 3 . eating like a cow 國家癌癥中心的報告指出燒焦的肉類會產生一種雜環狀胺類的化學物質,此一物質在實驗的動物身上產生癌癥。

Many constituents are mutagens and carcinogenic such as alkenes , nitrosamines , polynuclear aromatic and heterocyclic hydrocarbons , amines 煙草的很多成分都會引起有機體突變以及致癌,如烯烴化合物,亞硝胺,多核芳香烴以及多環碳氫化合物和銨

A total of 102 compounds including esters , alcohols , acids , aldehydes , phenols and o - heterocyclic conpounds , were isolated and identified 采用氣相色譜法對古井貢酒和其他濃香型名優酒的微量香味成分含量進行了測定,并進行了對比分析。

There appear the most promising pharmaceutical intermediates such as vitamin intermediates , heterocyclic fluoride and chiral intermediate 最具前景的中間體品種有維生素類中間體、含氟、雜環類中間體、手性中間體。

Synthesis of polystyrene - supported 2 - amino - 5 - methylthio - 1 , 3 , 4 - thiadizole heterocyclic functional chelating resin and its adsorption properties 噻二唑螯合樹脂的合成及吸附性能

Q represents the nonmetallic atoms necessary to complete a heterocyclic nucleus containing 5 atoms in the heterocyclic ring Q是形成5個原子雜環核所必須的非金屬原子。

And the other in linhai , zhejiang will mainly develop heterocyclic chemicals 另一個設在浙江臨海,以雜環化學品研發和產品工業化開發為主。

Electron impact mass spectra of heterocyclic derivatives bearing 1 - aryl - 5 - methyl - 1 , 2 , 3 - triazole 三唑的雜環衍生物的電子轟擊質譜

Lnspection of 9 organic heterocyclic pesticides in tea for import and export 進出口茶葉中9種有機雜環類農藥殘留量的檢驗方法