CAS: 139653-55-7; Tetrahexadecylammonium Bromide

专利信息

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-6160181-A
优先权日:1998-09-01
标题 :Tetraene derivative and process for producing the same
发明人：SEKO SHINZO; KONYA NAOTO; TAKAHASHI TOSHIYA; FURUTANI ATSUSHI
权利人:SUMITOMO CHEMICAL CO
摘要:A tetraene derivative of the formula (1): ##STR1## wherein Ar represents an aryl group which may be optionally substituted with at least one substituent, and R 1 and R 2 are identical or different and represent a hydrogen atom, a lower alkyl group or a protective group of a hydroxyl group; synthesis methods therefor and synthesis methods using the same.

专利号:CN-115087647-A
优先权日:2018-12-07
标 题:For the preparation of 4-(2-Chloro-4-methoxy-5-methylphenyl)-N-[(1S)-2-cyclopropyl-1-(3-fluoro-4-methylphenyl) ) ethyl]-5-methyl-N-prop-2-ynyl-1,3-thiazol-2-amine synthesis method