CAS: 14190-16-0; Tetramethylammoniumsulfate

相似化合物

75-57-0 64-20-0 75-58-1

碳酸二甲酯置于1-Ethyl-3-Methylimidazolium Bromide,Nh4So4体系中,化学反应 8.0H,以70.4%的收率获得四甲基硫酸铵
参考文献:咪唑基离子液体催化剂催化铵盐的烷基化
标题:咪唑基离子液体催化剂催化铵盐的烷基化
摘要:在咪唑鎓离子液体催化剂上由铵盐和碳酸二烷基酯合成季铵盐.该反应产生了几乎化学计量的用于卤化物和硝酸盐的季铵盐.发现铵阳离子的烷基部分的供电子性,碳酸盐烷基的亲电子性质,铵盐的阴离子所对应的酸的酸度以及铵的空间位阻.盐和碳酸二烷基酯是影响季铵盐收率的关键因素.铵盐氮原子上的强供电子烷基,碳酸二烷基酯的亚甲基碳上的吸电子基团,
Doi:10.1002/adsc.200600451

专利信息

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: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:JP-2004513937-A
优先权日:2000-11-15
标 题:Solvent-free synthesis of hydrophilic phenol ester derivatives

专利号:WO-0240447-A2
优先权日:2000-11-15
标 题:Solventless synthesis of hydrophilic phenol ester derivatives

专利号:EP-1351927-A2
优先权日:2000-11-15
标 题:Solventless synthesis of hydrophilic phenol ester derivatives

专利号:CA-2424717-A1
优先权日:2000-11-15
标 题 :Solventless synthesis of hydrophilic phenol ester derivatives