噻啶

In this dissertation, the stable radical cation salts ofphenothiazine and 10 - alkylphenothiazine alky=〓(〓 hexachloroantimonate,perchlorate and iodide were prepared by one- electron oxidationwith 2,2,6,6-tetramethyl - 4 -acetyloxypiperidine oxoammoniumhexachloroantimonate, perchloric acid/hydrogen peroxide andmolecular iodine respectively, and they were characteried by UV -Vis spectroscopy and ESR spectroscopy.

本文的主要内容有：吩噻嗪和10-烃基吩噻嗪分别被碘、高氯酸／过氧化氢，2，2，6，6-四甲基-4-乙酰氧基哌啶氧铵六氯锑酸盐氧化为相应的正离子自由基碘盐、高氯酸盐、六氯锑酸盐，并用UV-Vis光谱和ESR波谱进行了鉴定和研究。

Our chief products include as follows: 5-Nitro-8-hydroxy Quinoline, 8-Aminoquinaldine, 8-Hydroxyquinoline Sulfate, 5,7-Dichloro-8-hydroxyquinaldine, 5-Nitro-0-cresol, 6-Nitro-m-cresol, 2'-Chloroacetophenone, 4-Methyl-5-thiazole ethanol, 4-Aminophenethyl alsohol.

主要产品有：硝羟喹啉，8-氨基喹啉，8-羟基喹啉硫酸盐，8-羟基喹哪啶，5，7-二氯-8-羟基喹哪啶，5-硝基邻甲酚，6-硝基间甲酚，邻氯笨乙酮，4-氨基笨乙醇，4-甲基-5-噻唑乙醇，3-羟基吡啶等。

Object: A specific and sensitive liquid chromatography tandem mass spectrometry method was developed for the multiresidue determination of sulfisomidine, sulfapyridine, sulfamerazine, sulfamethoxazole, sulfisoxazole, sulfadiazine, sulfamethizole, sulfachlorpyridazine, sulfamethoxypyridazine, sulfadimethoxine, sulfamonomethoxine, sulfathiazole, sulfadoxine, sulfaquinoxaline, sulfanilamide, sulfaguanidine, sulfamoxole, sulfameter, sulfadimidine, sulfacetamide, sulfaphenazole, sulfanitran, sulfabenzamide and a potentiator, trimethoprim, in meat.

目的：建立猪肉中磺胺及其增效剂多残留检测的液相色谱-串联质谱法，包括磺胺二甲异嘧啶、磺胺吡啶、磺胺甲基嘧啶、磺胺甲基异噁唑、磺胺二甲异噁唑、磺胺嘧啶、磺胺甲噻二唑、磺胺氯哒嗪、磺胺甲氧哒嗪、磺胺间二甲氧嘧啶、磺胺-6-甲氧嘧啶、磺胺噻唑、磺胺邻二甲氧嘧啶、磺胺喹噁啉、磺胺、磺胺脒、磺胺噁唑、磺胺甲氧嘧啶、磺胺二甲嘧啶、磺胺醋酰、磺胺苯吡唑、磺胺硝苯、磺胺苯酰和甲氧苄氨嘧啶。

Imino-1, 3-thiazetidines is the basic structure of a kind ofbioactive herbicide and insecticide. Our method has advantage in synthesis highly substituted2-imino-1, 3-thiazetidines, therefore it has practical value to some extent. We also researched the reactions catalyze by active zinc dust.

提供了成四员噻吖丁啶杂环衍生物的方法。2-亚胺基-1，3-噻吖丁啶是一类具有生物活性的除草剂及杀虫剂的核心结构，我们的方法在合成多取代的2-亚胺基-1，3-噻吖丁啶方面有一定的优越性，从而具有一定的实用价值本文另一部分的工作是探讨锌粉催化的反应。

5H-Thiazolo[3,2-a]pyrimidine can be efficiently prepared by the reaction of dihydropyrimidine-2-thione withα-bromoacetone,in water media.

在此反应体系中，2-氨基-5-芳氧亚甲基-1，3，4-噻二唑与丙烯酸酯反应，意外的得到环合产物—5H，6H-[1，3，4]噻二唑并[1，2-a]嘧啶-7-酮类衍生物。

Phenothiazines were also oxidized byiodine and 2, 2, 6, 6- tetramethyl - 4 - acetyloxypiperidineoxoammonium hexachloroantimonate to radical cations in the cavityof β-cyclodextrins in aqueous solution.

以吩噻嗪衍生物为底物，2，2，6，6-四甲基-4-乙酰氧基哌啶氧铵六氯锑酸盐、碘为氧化剂，二者在水相中β-环糊精腔内发生了单电子转移反应，产生了吩噻嗪衍生物正离子自由基。

Piperidine oxoammonium salts oxidize aromatic amines and N, S-containing heterocycles to the corresponding radical cations, and the isotope effects in electron transfer reactions between thianthrene and N-methylphenothiazine radical cations and their respective neutral parent molecules have been reported for the first time.

哌啶氧铵盐氧化芳香胺和含氮、硫芳杂环为相应的自由基正离子，首次报道了噻蒽及甲基吩噻嗪自由基正离子与其中性母体之间电子转移的同位素效应。

A general novel synthetic method to Symmetrically or unsymmetrically 2,3,6,7- substituted thieno[2,3-d:5,4-d\']dipyrimidine-4,5(3H,6H)-diones and 2-substituted benzothieno[3,2-d] pyrimidin-4(3H)-dione by utilizing aza-Wittig reaction was proposed firstly. This synthetic method has the advantage of easily accessible starting material, mild condition and good yields.

具体研究内容如下：1、首次研究了应用aza-Wittig反应方法合成2，3，6，7-对称与不对称四取代噻吩并[2，3-d；5，4-d\']双嘧啶-4，5(3H，6H)-二酮以及2-取代苯并噻吩并[3，2-d]嘧啶-4(3H)-酮衍生物的通用新方法，该方法原料易得，条件温和，收率较高。

The best of them were 4c and 8d which exhibited 87% and 89% inhibition of Penicilium digitatum . And benzothieno[3,2-d]imidazol[1,2-a]pyrimidin-2,5(1H, 3H)-diones or benzothieno[3,2-d][1,2,4]triazol[1,5-a]pyrimidin-10(3H)-one only exhibited moderate inhibition.

而苯并噻吩并[3，2-d]嘧啶-4(3H)-酮和苯并噻吩并[3，2-d]咪唑并[1，2-a]嘧啶-2，5(1H，3H)-二酮以及苯并噻吩并[3，2-d][1，2，4]三唑[1，5-a]嘧啶-10(3H)-酮衍生物以及三唑醇衍生物均只表现出中等的抑制率。

And benzothieno[3,2-d]imidazol[1,2-a]pyrimidin-2,5(1H, 3H)-diones or benzothieno[3,2-d][1,2,4]triazol[1,5-a]pyrimidin-10(3H)-one only exhibited moderate inhibition.

而苯并噻吩并[3，2-d]嘧啶-4(3H)-酮和苯并噻吩并[3，2-d]咪唑并[1，2-a]嘧啶-2，5(1H，3H)-二酮以及苯并噻吩并[3，2-d][1，2，4]三唑[1，5-a]嘧啶-10(3H)-酮衍生物以及三唑醇衍生物均只表现出中等的抑制率。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐