CAS: 2050-23-9; Diethyl Octanedioate

相似化合物

14113-01-0 764-89-6 629-41-4

上下游产品

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📜1,8-二辛酰氯置于salcomine,磷化氢,溴体系中,化学反应 13.0H,反应生成辛二酸二乙酯
参考文献:以钴(II)salen配合物为介体的离子液体中开链和环状二溴化物的电催化脱溴
标题:以钴(II)salen配合物为介体的离子液体中开链和环状二溴化物的电催化脱溴
摘要:研究了钴(II)salen介导的离子液体中开链和环状二溴化物的电催化还原.在未分割的电池中进行大规模恒电位电解,可以中等至非常好的收率获得相应的脱溴产物.电解后的后处理过程在离子液体中比在有机溶剂中要简单得多.证明了重复使用离子液体的可能性.
Doi:10.1007/s11164-012-0634-6

专利信息

专利号:US-2003089435-A1
优先权日:2000-03-23
标题:Method of synthesizing diglycerol tetranitrate, and solid rocket motor propellant containing the same
发明人：SANDERSON ANDREW J; MARTINS LAURA J
摘要:Diglyercol tetranitrate is an energetic nitrate ester plasticizer having no freezing point, making the nitrate ester plasticizer especially suited for use in solid rocket motor propellants that are subjected to low temperature storage and operational environments, which can reach as low as −54° C. in temperature. In order to avoid problems associated with fume-off that characterize the conventional synthesis method of making diglycerol tetranitrate, synthesis is performed in a medium including a mixed acid phase and an inert organic phase. The mixed acid phase contains, as ingredients, at least one nitronium ion source and at least one acid having sufficient strength to generate nitronium ions from the nitronium ion source. The nitronium ions in the mixed acid nitrate diglycerol to form diglycerol tetranitrate, which is then received into the organic liquid. The organic liquid, which preferably is a chlorocarbon such as dichloromethane, is insoluble with diglycerol but soluble with diglycerol tetranitrate. The inert organic phase is then treated to neutralize any acid contained in the inert organic phase, and the diglycerol tetranitrate is separated from the inert organic phase.

专利号:US-4511573-A
优先权日:1983-05-17
标题:3-Substituted-2-(heteroaryl) indoles
发明人：RENFROE HARRIS B
权利人:CIBA GEIGY CORP
摘要:Disclosed as thromboxane synthetase inhibitors are the compounds of formula (I) wherein R1 represents hydrogen or lower alkyl; Ar represents 3-pyridyl or 1-imidazolyl, each unsubstituted or substituted by lower alkyl, carboxy, lower alkoxycarbonyl or carbamoyl; R2 and R3 independently represent hydrogen, lower alkyl, halogen, trifluoromethyl, hydroxy, lower alkoxy, carboxy lower alkyl, lower alkoxycarbonyl lower alkyl, carboxy, lower alkoxycarbonyl, or lower alkyl-(thio, sulfinyl or sulfonyl), or R2 and R3 together on adjacent carbon atoms represent lower alkylenedioxy; A represents straight chain or branched alkylene of 3 to 12 carbon atoms in which the number of the carbon atoms separating the indole nucleus from group B is 3 to 12, straight chain or branched alkenylene of 2 to 12 carbon atoms, straight chain or branched alkynylene of 2 to 12 carbon atoms, lower alkylenephenylene-lower (alkylene or alkenylene), lower alkylenephenylene, lower alkylene-(thio or oxy)-lower alkylene, lower alkylene-(thio or oxy)-phenylene, or lower alkylene-phenylene-(thio or oxy)-lower alkylene; B represents carboxy, esterified carboxy, carbamoyl, mono- or di-lower alkylcarbamoyl, hydroxymethyl, cyano, hydroxycarbamoyl, 5-tetrazolyl or formyl; the imidazolyl and pyridyl N-oxide thereof; or a pharmaceutically acceptable salt thereof; as well as their synthesis, pharmaceutical compositions thereof, and methods of treatment utilizing such compounds.