CAS: 452-58-4; 2,3-Diaminopyridine

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3,3'-Dinitro-2,2'-Hydrazobipyridine置于镍 氢气体系中,用 乙醇 作为反应溶剂,化学反应 3.0H,以92%的收率获得产物2,3-二氨基吡啶
参考文献:制备2,3-和3,4-二氨基吡啶的一些新方法
标题:制备2,3-和3,4-二氨基吡啶的一些新方法
摘要:探索了由2-氯-3-硝基吡啶(11)制备2,3-二氨基吡啶(13)和由4-乙氧基-3-硝基吡啶盐酸盐(5)制备3,4-二氨基吡啶(8)的新方法,并评估.
DOI:10.1002/jhet.5570230306

专利信息

专利号:WO-2009018504-A1
优先权日:2007-08-01
标题 :Process for the synthesis of diaminopyridine and related compounds
发明人：RITTER JOACHIM C
权利人:DU PONT; RITTER JOACHIM C
摘要:A process is provided for the synthesis of a diaminopyridine, such as 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a chlorine-ammonia displacement in the presence of a copper source.

专利号:US-8084569-B2
优先权日:2006-12-21
标 题 :Process for the synthesis of diaminopyridines from glutarimidines
发明人：MINTER AARON; STOKES BERLIN
权利人:MINTER AARON; STOKES BERLIN; DU PONT
摘要:A liquid-phase process is provided for the synthesis from glutarimidines of diaminopyridines and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.

专利号:WO-2009018502-A3
优先权日:2007-08-01
标 题:Process for the synthesis of diaminopyridine and related compounds
发明人：RITTER JOACHIM C
权利人:DU PONT; RITTER JOACHIM C
摘要:A process is provided for the synthesis of a diaminopyridine, such as 2, 6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a chlorine-ammonia displacement in the presence of a copper source.

专利号:US-8022167-B2
优先权日:2006-12-21
标 题 :Process for the synthesis of diaminopyridines from glutaronitriles
发明人：MINTER AARON; STOKES BERLIN
权利人:MINTER AARON; STOKES BERLIN
摘要:A liquid-phase process is provided for the manufacture from glutaronitriles and related compounds of 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.

专利号:US-7999057-B2
优先权日:2008-07-08
标 题:Gas-phase process for the synthesis of diaminopyridines from glutaronitriles
发明人：HUTCHENSON KEITH W; MINTER AARON; SUNSHINE GREGG
权利人:DU PONT
摘要:A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.

专利号:US-9708317-B2
优先权日:2013-11-25
标 题 :Process for the preparation of 8-(4-aminophenoxy)-4H-pyrido[2,3-B]pyrazin-3-one derivatives
发明人：ZAMBON ALFONSO; NICULESCU-DUVAZ DAN; CHUBB RICHARD; SPRINGER CAROLINE JOY
权利人:CANCER RES TECH LTD; INST OF CANCER RESEARCH: ROYAL CANCER HOSPITAL (THE); OXY SCIENT LTD; THE INST OF CANCER RESEARCH: ROYAL CANCER HOSPITAL
摘要:The present invention pertains generally to the field of organic chemical synthesis, and in particular to certain methods for the synthesis of 8-(4-aminophenyoxy)-4H-pyrido[2,3-b]pyrazin-3-one and related compounds (denoted herein as (3)) from 4-(4-aminophenyoxy)pyridine-2,3-diamine and related compounds (denoted herein as (1)), by reaction with glyoxylic acid (denoted herein as (2)). The compounds (3) are useful in the synthesis of known anti-cancer agents, such as 1-(5-tert-butyl-2-(4-methyl-phenyl)-pyrazol-3-yl)-3-[2-fluoro-4-[(3-oxo-4H-pyrido[2,3-b]pyrazin-8-yl)oxy]phenyl]urea.