CAS: 37026-88-3; N,N-Dibutyl-N-Methylbutan-1-Aminium Bromide

相似化合物

1643-19-2 866-97-7 56375-79-2

上下游产品

methyl bromide tributyl-amine1-butylene tributyl-amine methane N-methyldibutylamine

溴甲烷,三正丁胺 反应生成甲基三正丁基溴化铵
参考文献:基于季phospho阳离子的室温双氰胺离子液体的物理和电化学性质
标题:基于季phospho阳离子的室温双氰胺离子液体的物理和电化学性质
摘要:本报告介绍了基于季phospho阳离子和双氰胺阴离子的室温离子液体的物理化学和电化学性质.所制备的大多数基于双氰胺的phospho离子液体是亲水的,除了在膦鎓阳离子中包含长烷基链的离子液体.发现不对称的nium阳离子与双氰胺阴离子结合产生低熔点的盐.与相应的铵离子液体相比,基于双氰胺的phospho离子液体表现出相对较低的粘度和较高的电导率.特别地,在phospho阳离子中含有甲氧基的离子液体显示出非常低的粘度.通过伏安法测量证实了基于双氰胺的phospho离子液体的相对较好的电化学稳定性.热重分析表明,基于双氰胺的phospho离子液体显示出比相应的铵离子液体更高的热稳定性,表明the阳离子对热稳定性的改善作用.
Doi:10.1016/j.Electacta.2010.08.106

专利信息

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-2002058824-A1
优先权日:2000-11-15
标题:Solventless synthesis of hydrophilic phenol ester derivatives
发明人：MAJERCZAK VICTORIA ANN; GIBSON MICHAEL STEVEN; ORLANDO ROBERT JAMES
摘要:Process for preparing benzenesulfonate salts from an appropriately substituted acid chloride and a hydroxybenzenesulfonic acid is conducted in the absence of solvent, in a molar excess of acid chloride and in the presence of a phase transfer catalyst selected from quaternary ammonium and quaternary phosphonium salts and the target reaction product. The molar excess of the acid chloride is used to reduce the occurrence of gelation in the product.

专利号:EP-3567040-B1
优先权日:2013-06-24
标 题 :Method for the preparation of intermediates useful for the synthesis of [1,2,4]-triazolo[4,3-a]pyridines

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:DE-102009001758-A1
优先权日:2009-03-23
标题 :Process for the synthesis of 1,3-bis (aminoalkyl) disiloxanes

专利号:EP-3567040-A1
优先权日:2013-06-24
标题 :Method for the preparation of intermediates useful for the synthesis of [1,2,4]-triazolo[4,3-a]pyridines