CAS: 5922-92-9; Tetrahexylazanium,Chloride

上下游产品

methanol1-hexene tri-n-hexylamine tetrahexylammonium hydroxide (S)-N-(3,5-dinitrobenzoyl)leucine

📜甲醇,以 二氯甲烷 作为反应溶剂,化学反应生成 四己基氯化铵
参考文献:Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions Studied By Ftir Spectroscopy.
标题:Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions Studied By Ftir Spectroscopy.
摘要:The Interaction Between Methanol And The Cl-,Br-,I-,No3-,Clo4-,Bf4-,So3Cf3-And Pf6-Anions In Dilute Dichloromethane Solutions Has Been Investigated. The Oh Stretching Vibration Was Used To Monitor The Hydrogen Bonds Formed Between The Anions And The Methanol Molecules,Providing A Direct Measure Of The Hydrogen-Bond Strength. Concentrations Of Free And Anion-Bonded Methanol Molecules Were Measured And The Equilibrium Constants Calculated. The Wavenumber Shift And The Free Energy Of Hydrogen-Bond Formation Was Found To Be Significantly Correlated. Far The Anions Studied It Was Found That The Hydrogen-Bond Strength Increases Hr The Order: Pf6-< Bf4-< Clo4-< So3Cf3-< No3-< Br-< Cl-.
DOI:10.3891/acta.Chem.Scand.51-0270

专利信息

专利号:US-4422970-A
优先权日:1982-05-20
标题 :Method of synthesis of 1-dodecylazacycloheptan-2-one
发明人：RAJADHYAKSHA VITHAL J; PECK JAMES V; MINASKANIAN GEVORK
权利人:NELSON RES & DEV
摘要:In a method of synthesis of 1-substituted azacycloalkan-2-ones with primary alkyl halides and aralkyl halides as alkylating agents, the improvement comprising carrying out the N-alkylation in the presence of a phase transfer catalyst having the structural formula where X is suitable anion; and R1, R2, R3 and R4 are each alkyl or aralkyl groups having 1-18 carbon atoms, or R2, R3 and R4 can form a part of a heterocyclic ring, with the proviso that the combined total of carbon atoms is between 16 and 40.

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-2008214386-A1
优先权日:2004-03-01
标题:Catalyst for Cyclic Carbonate Synthesis
发明人：TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
权利人:TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
摘要:Provided are a solid catalyst which gives a cyclic carbonate at a high yield and a high selectivity, which is stable and which may be readily separated after reaction; and a method of industrially advantageous, inexpensive and safe production of a cyclic carbonate by the use of the catalyst. The catalyst contains an inorganic solid substance having a surface modified with an ionic substance containing a Group 15 element; or contains an ionic substance containing a Group 15 element, and an inorganic solid substance. The modifying group for surface modification of an inorganic solid substance is an ionic substance containing a Group 15 element. The ionic substance containing a Group 15 element is at least one substance selected from organic phosphonium salts, organic ammonium salts, organic arsonium salts and organic antimonium salts.

专利号:US-4797427-A
优先权日:1987-04-25
标题:Aromatic diamines containing sulfonic acid aryl esters, a process for their production and their use in the production of polyurethane plastics
发明人：SANDERS JOSEF; REIFF HELMUT; BALLE GERHARD; DIETERICH DIETER
权利人:BAYER AG
摘要:The present invention is directed to new aromatic diamines containing sulfonic acid aryl esters corresponding to the formula wherein R1 represents hydrogen, an optionally branched C1-C6 alkyl radical (preferably a methyl group), a C1-C6 alkoxy radical or a halogen atom (preferably chlorine) and R2 and R3 which may be the same or different, represent hydrogen, an optionally branched C1-C20 (preferably C1-C6) alkyl radical, a C1-C6 alkoxy radical or a halogen atom (preferably chlorine). The present invention is also directed to a process for the production of the above aromatic diamines containing sulfonic acid esters by the reaction of optionally substituted sulfochlorides with optionally substituted phenols followed by hydrogenation. Finally, the present invention is directed to the use of aromatic diamines containing sulfonic acid aryl esters as a synthesis component for the production of polyurethane plastics by the isocyanate polyaddition process.

专利号:US-4172083-A
优先权日:1977-09-23
标 题 :Carbocyclic aryl compounds substituted with a tetrahydro-2H,4H-1,3,6-dioxazocino moiety
发明人：CINCOTTA LOUIS; FOLEY JAMES W; KAMPE MARCIS M
权利人:POLAROID CORP
摘要:This invention relates to carbocyclic aryl compounds substituted with a tetrahydro-2H,4H-1,3,6-dioxazocino moiety and to the preparation thereof. These compounds are useful as intermediates in the synthesis of certain 3,3-disubstituted-2,3-dihydrobenz[d]isothiazole-1,1-dioxide dyes which find utility as, for example, photographic optical filter agents and filter agent precursors.

专利号:KR-20180074695-A
优先权日:2015-10-26
标题 :Synthesis of 2-alkyl-4-trifluoromethyl-3-alkylsulfonylbenzoic acid