CAS: 1738-25-6; Dimethylaminopropionitrile

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CAS号124-40-3 二甲胺 | CAS号107-13-1 丙烯腈 | CAS号109-78-4 3-羟基丙腈 | CAS号51822-55-0 2-(dimethylamin... | CAS号372-09-8 氰基乙酸 | CAS号25368-52-9 1-dimethylamino... | CAS号110-67-8 3-甲氧基丙腈 | CAS号3506-36-3 3-(二甲氨基)苯丙酮盐酸盐 | CAS号14068-78-1 5-[2-(二甲基氨基)乙基]... | CAS号82-38-2 1-(甲氨基)蒽醌 | CAS号5960-55-4 1-(dimethylamin... | CAS号3314-35-0 3-氨基-4,5-二氢-1-苯基吡唑 | CAS号3088-41-3 1-(2-氰乙基)哌啶 | CAS号17815-99-5 4-chloro-N,N-di... | CAS号18076-02-3 hydr°Chloride o... | CAS号107-13-1 丙烯腈 | CAS号77976-79-5 4-N,N-dimethyla...

Dimethylaminopropionitrile-Sulfur Dioxide Adduct置于sodium Hydroxide体系中,用 乙醚,水 用作溶剂,化学反应生成二甲氨基丙腈
参考文献:Bodrikov,I. V.; Krasnov,V. L.; Samodurov,I. N.,Journal Of Organic Chemistry Ussr (English Translation),1985,Vol. 21,# 5,P. 923-928
标题:Bodrikov,I. V.; Krasnov,V. L.; Samodurov,I. N.,Journal Of Organic Chemistry Ussr (English Translation),1985,Vol. 21,# 5,P. 923-928

专利信息

专利号:US-4579946-A
优先权日:1985-01-10
标 题:Process for synthesis of 2-vinyl-4,6-diamino-S-triazine
发明人：SAWA NATSUO; MASUDA TAKESHI
权利人:SHIKOKU CHEM
摘要:Disclosed is a process for the synthesis of 2-vinyl-4,6-diamino-S-triazine having the following structural formula: ##STR1## which comprises heating an imidazolyl-S-triazine compound represented by the following general formula: ##STR2## wherein R 1 stands for a hydrogen atom, a methyl group or an ethyl group, and R 2 stands for a hydrogen atom or a methyl group, or an isocyanuric acid-addition product thereof under reduced pressure in the presence of a polymerization inhibitor. n According to this process, 2-vinyl-4,6-diamino-S-triazine can be manufactured at a low cost on an industrial scale.

专利号:WO-2023237381-A1
优先权日:2022-06-09
标题:Process for the synthesis of polyethylenes or copolymers of ethylene and 1,3-diene having a terminal ketone function
发明人：BOISSON CHRISTOPHE; D'AGOSTO FRANCK; DESGRANGES ARIANE; NGO ROBERT; JEAN-BAPTISTE-DIT-DOMINIQUE FRANÇOIS
权利人:MICHELIN & CIE; CENTRE NAT RECH SCIENT; ECOLE SUPERIEURE DE CHIMIE PHYSIQUE ELECTRONIQUE LYON; UNIV CLAUDE BERNARD LYON
摘要:The invention relates to a method for preparing a polyethylene having a terminal ketone function or a copolymer of ethylene and a 1,3-diene and optionally a vinyl aromatic compound which contains more than 50 mol% of ethylene and has a terminal ketone function; said method comprises a polymerization reaction of the monomers in the presence of a borohydrido-neodymocene complex and an organo-magnesium compound, followed by a coupling reaction with a compound having a nitrile function, and then a hydrolysis reaction.

专利号:US-7939027-B2
优先权日:2005-11-03
标题:Process for the synthesis of DMAPA
发明人：ERNST MARTIN; OEHLENSCHLAEGER STEFFEN; KUHNKE FRANK; ROβ KARL-HEINZ; DEEG ROLAND; MELDER JOHANN-PETER
权利人:BASF SE
摘要:The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the stepsn (a) reaction of the alkenyl nitrile with a corresponding monoamine in a first reactor so that the monoamine adds exothermically onto the at least one double bond to form an aminoalkyl nitrile, with the monoamine and water being charged initially and the alkenyl nitrile being fed in; (b) evaporation of unreacted alkenyl nitrile and monoamine to increase the concentration of the aminoalkyl nitrile product in the bottoms of the first reactor; (c) transfer of the aminoalkyl nitrile bottom product from step (b) to a second reactor; (d) batchwise catalytic hydrogenation of the aminoalkyl nitrile transferred in step (c) to the diamine in the second reactor, with each batch being obtained by initially charging a catalyst suitable for the hydrogenation of nitriles to amines and also water, the desired diamine and a base, introducing hydrogen into the second reactor and feeding in the aminoalkyl nitrile transferred in step (c); and (e) isolation of the diamine and, if appropriate, repetition of the steps (a) to (e). nn The invention further relates to an apparatus for preparing these diamines and the use of the apparatuses. A preferred diamine is 3-dimethylaminopropylamine (DMAPA).

专利号:US-7723547-B2
优先权日:2005-11-03
标题 :Process for the synthesis of DMAPA
发明人：ERNST MARTIN; OEHLENSCHLAEGER STEFFEN; KUHNKE FRANK; RO BGR KARL-HEINZ; DEEG RONALD; MELDER JOHANN-PETER
权利人:BASF SE
摘要:The present invention relates to a process for the industrial preparation of a diamine starting from a corresponding alkenyl nitrile comprising at least one C—C double bond, which comprises the stepsn (a) reaction of the alkenyl nitrile with a corresponding monoamine in a first reactor so that the monoamine adds exothermically onto the at least one double bond to form an aminoalkyl nitrile, with the monoamine and water being charged initially and the alkenyl nitrile being fed in; (b) evaporation of unreacted alkenyl nitrile and monoamine to increase the concentration of the aminoalkyl nitrile product in the bottoms of the first reactor; (c) transfer of the aminoalkyl nitrile bottom product from step (b) to a second reactor; (d) batchwise catalytic hydrogenation of the aminoalkyl nitrile transferred in step (c) to the diamine in the second reactor, with each batch being obtained by initially charging a catalyst suitable for the hydrogenation of nitriles to amines and also water, the desired diamine and a base, introducing hydrogen into the second reactor and feeding in the aminoalkyl nitrile transferred in step (c); and (e) isolation of the diamine and, if appropriate, repetition of the steps (a) to (e). nn The invention further relates to an apparatus for preparing these diamines and the use of the apparatuses. A preferred diamine is 3-dimethylaminopropylamine (DMAPA).

专利号:US-4340672-A
优先权日:1979-09-19
标 题:Enzymatic synthesis of β-lactam antibacterials
发明人：KONDO EIJI; MITSUGI TAKASHI; FUJIWARA TAMIO; MUNEYUKI RYONOSUKE
权利人:SHIONOGI & CO
摘要:Penicillins and cephalosporins can be synthesized by the action of an acylase on a penicillin or cephalosporin nucleus amine as substrate and an ester (I) of the following formula as the acyl source: (I) (wherein RCO is an acyl group in penicillin or cephalosporin side chains; X is a hydrogen atom, lower alkyl group or hydroxy-lower alkyl group; Y is a hydrogen atom or a lower alkyl group; and n is a positive integer). The novel acyl source (I) is also disclosed.

专利号:US-3853946-A
优先权日:1971-11-11
标题 :Process for the preparation of aminomethylene malononitrile
发明人：LEIMGRUBER W; WEIGELE M
权利人:HOFFMANN LA ROCHE
摘要:This invention is directed to a process for the preparation of aminomethylene malononitrile from dialkyl aminoacylonitrile including intermediates therein. Aminomethylene malononitrile is a known compound which is a valuable intermediate in the synthesis of thiamine.