CAS: 5197-95-5; Benzyltriethylammonium Bromide

上下游产品

CAS号74-96-4 溴乙烷 | CAS号772-54-3 N-苄基二乙胺 | CAS号100-39-0 溴化苄 | CAS号121-44-8 三乙胺 | CAS号554-70-1 三乙基膦 | CAS号103-82-2 苯乙酸 | CAS号77771-03-0 3-溴-4-氟苄胺盐酸盐 | CAS号834-25-3 Benzene,1-methy... | CAS号622-60-6 4-甲基苯乙醚 | CAS号772-54-3 N-苄基二乙胺 | CAS号1145-76-2 1-苄氧基-4-硝基苯 | CAS号142885-91-4 5-甲氧基-2-(((3,5-... | CAS号3591-45-5 2-溴甲基-1 1-二氯环丙烷 | CAS号62653-99-0 3,5-bis(chlorom...

溴乙烷,N,N-二乙基苄胺置于苯体系中,化学反应生成 苄基三乙基溴化铵
参考文献:Hager; Marvel,Journal Of The American Chemical Society,1926,Vol. 48,P. 2695
标题:Hager; Marvel,Journal Of The American Chemical Society,1926,Vol. 48,P. 2695

专利信息

专利号:WO-2014080341-A1
优先权日:2012-11-21
标题 :New process for the synthesis of trichloropyrimidine-amine derivatives
发明人：Czibula László; Dobay László; SZAVICSKÓ KRISZTINA; KISS-BARTOS DOROTTYA; Nagyné Bagdy Judit
权利人:RICHTER GEDEON NYRT
摘要:The invention relates to a new process for the synthesis of 2-(N-methyl)-amino-4,5,6- trichloro-l,3-pyrimidine, which is more economical than the known process, as well as the new compounds synthesized as intermediates in the process: 2-(N',N'-dimethylamino- methylene)-amino-4,5,6-trichloro-l,3-pyrimidine and 2-(N-formyl)-amino-4,5,6-trichloro-l,3- pyrimidine.

专利号:US-2009253746-A1
优先权日:2005-11-14
标题 :Synthesis and Preparations of Intermediates and New Polymorphs Thereof Useful For The Preparation Of Donepezil Hydrochlcoride
发明人：SOLDEVILLA MADRID NURIA
权利人:SOLDEVILLA MADRID NURIA
摘要:The invention relates to an improved process for preparing 2-(1-benzylpiperidin-4-ylmethyliden)-5,6-dimethoxyin-dan- 1 -one (a key intermediate in the synthesis of donepezil hydrochloride), crystalline polymorph forms of this key intermediate and their use thereof for producing donepezil hydrochloride. In particular, the invention provides an improved method for producing the intermediate 2-(1-benzylpiperidin-4-ylmethyliden)-5,6-dimethoxyindan-1-one. The process includes reacting 5,6-dimethoxyin-dan- 1 -one with 1-benzylpiperidine-4-carbaldehyde using potassium hydroxide in an aqueous solvent. The aqueous solvent can be a mixture of an organic solvent and water Where the organic solvent is not miscible with water, the reaction may be performed in the presence of a phase transfer catalyst.

专利号:US-8927739-B2
优先权日:2011-05-18
标 题 :Processes for the preparation of 5-azaspiro[2.4]heptane-6-carboxylic acid and its derivatives
发明人：QIU YAO-LING; PENG XIAOWEN; KIM IN JONG; CAO HUI; TANG DATONG; OR YAT SUN; WANG GUOQIANG; XU GUOYOU
权利人:ENANTA PHARM INC
摘要:The present invention relates generally to an improved process for the preparation of 5-azaspiro[2.4]heptane-6-carboxylic acid and its derivatives which are useful intermediates in the synthesis of biologically active molecules, especially in the synthesis of hepatits C virus NS5A inhibitors. In particular, the present invention relates to processes and intermediates for the preparation of compounds of formulae (Ia), (Ib) and (Ic):

专利号:WO-2006038223-A1
优先权日:2004-10-06
标题:A process for preparation of 2-n-butyl -4-chloro - 1 - {[2`- (2-triphenylmethyl - 2h - tetrazole - 5- yl) - 1, 1’ - biphenyl-4-yl] methyl}-lh- imidazoie-5-methanol (intermediate of losartan)
发明人：CHAVA SATYANARYANA; VASIREDDY UMAMAHESWAR RAO; VELLANKI SIVA RAM PRASAD; BALUSU RAJABABU
权利人:MATRIX LAB LTD; CHAVA SATYANARYANA; VASIREDDY UMAMAHESWAR RAO; VELLANKI SIVA RAM PRASAD; BALUSU RAJABABU
摘要:The present invention relates to a process for preparation of N-substituted heterocyclic derivative,2-n-Butyl-4-chloro- 1 - { [2' -(2-triphenylmethyl-2H-tetrazole-5-yl)- 1,1' -biphenyl -4-yl] methyl} -lH-imidazole-5-methanol, an important intermediate in the synthesis of Losartan and its pharmaceutically acceptable salts using phase transfer catalyst and minimal number of solvents with improved yield.

专利号:US-4806687-A
优先权日:1986-04-02
标题 :Catalytic hydrodesulfurization of ortho-aminobenzylsulfides
发明人：BALTHAZOR TERRY M; TREMONT SAMUEL J
权利人:MONSANTO CO
摘要:Ortho-alkylanilines are prepared by catalytic hydrodesulfurization of ortho-aminobenzyl sulfides using a cobalt-molybdenum oxide catalyst. For example, 2-methyl-6-trifluoromethylaniline is prepared by catalytic hydrodesulfurization of 3-trifluoromethyl-2-aminobenzyl sulfides. The substituted anilines prepared by the method of this invention are useful as intermediates in the synthesis of compounds shown to have herbicidal activity.

专利号:US-4967007-A
优先权日:1989-05-10
标 题 :Improved process for the preparation of 1-substituted amino-1-substituted thio-2-nitro alkenes
发明人：DESHMUKH ABDUL R A S; BHAWAL BABURAO M; SHIRALKAR VASUDEO P; RAJAPPA SRINIVASACHARI
权利人:COUNCIL SCIENT IND RES
摘要:A process is disclosed for the manufacture of 1-substituted amino-1-substituted thio-2 nitro alkenes of the general formula: (R1NH) (R2S) Câ•?CR3 (NO2) wherein R1, R2, R3, may be same or different and may consist of hydrogen, alkyl, aryl or arylalkyl groups or combinations thereof. These alkenes are prepared by reacting a primary amine with a compound of sulfur in the presence of a primary catalyst to obtain a carbonimidodithioic acid salt which is converted to a corresponding ester which is thereafter reacted with a nitro compound in the presence of a secondary catalyst. 1-methylamino-1-methylthio-2-nitroethene is an important intermediate in the synthesis of Rantitidine and Nizatidine which are used as effective drugs in the treatment of peptic ulcers and associated gastrointestinal disorders.