2,3-diaminopyridine

2,3-Dimethylpyridine-N-oxide was synthesized by oxidation of 2,3-dimethylpyridine.

以2,3-二甲基吡啶为起始原料,经氧化合成2,3-二甲基-N-氧化吡啶。

A synthesis route including nine steps for the preparation of this compound from 2,3-dimethylpyridine was studied.

以2,3-二甲基吡啶为起始原料,经过9步反应,不对称合成了质子泵抑制剂的关键中间体:(S)-2-{[4-(3-甲氧基丙氧基)-3-甲基吡啶-2-基]甲基亚硫酰基}-1H-苯并咪唑。

Based on the summary review of the discovery process of pyridine and its derivations, the synthesis processes of 2,3-dimethylpyridine have been summarized in this thesis.

本文在简述了吡啶化合物的基础上,进一步综述了2,3-二甲基吡啶的合成路线,通过比较分析,选择了以丁酮,丙烯醇和氨气为原料,磷酸镉/活性白土为催化剂的气相催化合成方法。

The stable multi dentate Schiff base ligand was synthesized by condensing of 2,6 diaminopyridine with m nitrobenaldehyde in the solvent of alcohol.

由 2 ,6 二氨基吡啶和间硝基苯甲醛制得一种稳定的希夫碱配体 ,其结构经红外光谱、质谱及元素分析进行表征 。

Spectrophotometric Determination of Trace Cobalt with a New Reagent 5-(5,7-Dibromo-8-quinolylazo)-2,3-dihydroxypyridine(DBQADHP);

新显色剂5-(5,7-二溴-8-喹啉偶氮)-2,3-二羟基吡啶光度法测定痕量钴

Spectrophotometric determination of microamou-nts of cobalt with a new chromogenic reagent 5-(8-luinolyazo)-2, 3-dihydroxylpyridine;

新显色剂5-(8-喹啉偶氮)-2,3-二羟基吡啶分光光度法测定微量钴

Synthesis of 5-Chloro-2,3-difluoropyridine in Ionic Liquid;

室温离子液体中5-氯-2,3-二氟吡啶合成

Studies on the Structure of 1,4-Dipiperidinyl-2,3-bis(4-methylphenyl)-2,3-Butanediol(dl)

1,4-二哌啶基-2,3-二(4-甲基苯基)-2,3-丁二醇的结构研究

Studies on 5,6-Substituted Derivatives of 1,10-Phenanthroline and Metal Complexes of Chelidamic Acid;

5，6-二取代1，10-菲咯啉及4-羟基-2，6-吡啶二酸配合物的研究

Study on optimal synthesis and purification of poly{2,6-dimidazo[4,5-b:4',5'-e] pyridinylene-1,4(2,5-dihydroxy) phenylene}monomers

聚[2,5-二羟基-1,4-苯撑吡啶并二咪唑]单体的合成优化及提纯研究

The properties and applications of poly[2,6-diimidazo(4,5-b: 4',5'-e)pyridinylene-1,4(2,5-dihydroxy)phenylen] fiber

聚(2,5-二羟基-1,4-苯撑吡啶并二咪唑)纤维的性能与应用

Syntheses, Characterizations and Thermoanalyses of 3,5-dinitro-hydroxylpyridine Energetic Catalysts;

3，5-二硝基羟基吡啶含能催化剂的合成、表征及热分析研究

Study on the Synthesis and Application of Poly {2,6-Diimidazo[4,5:4'5'-E]Pyridinylene-1,4(2,5-Dihydroxy)Phenylene} Nanoparticles

聚（二羟基苯撑并吡啶双咪唑）纳米粒子的合成及其应用研究

Synthesis and Properties of OPV Pyridinium and Di-8-hydroxyquinoline Derivatives

OPV吡啶盐及二联8-羟基喹啉衍生物的合成及性质

litudinium molybdophosphate

二甲基吡啶　钼磷酸盐

Determination of Isoelectric Point and Dissociation Constant of 4-Hydroxy-pyridine

4-羟基吡啶等电点和离解常数的测定

Synthesis of pyridin-ylmethyl 3,5-bis(pyridin-ylmethoxy)benzoate

3,5-二(吡啶-甲氧基)苯甲酸吡啶-甲基酯的合成

Studies on the Synthesis and the Spectrum of 5-propyl-2, 3-Dimethylpyrazine;

5—戊基—2,3—二甲吡嗪的新合成方法及其谱图研究

Preparation and characterization of pyridine or 2-methylpyridine intercalated layered V_2O_5

吡啶,2-甲基吡啶插层五氧化二钒的制备及表征

Enzymatic biodegradation of 2,3-dihydroxybiphenyl and amplification of encoding enzyme gene

2,3-二羟基联苯酶促降解及编码酶基因扩增

Preparation and Characterization of 2,6-Diamino-3,5-dinitropyridine (DADNP)

2,6-二氨基-3,5-二硝基吡啶的制备及表征

Dinitration of 2,6-Diamino(4-amino)pyridines

2,6-二氨基(4-氨基)吡啶的二硝化反应