CAS: 329944-72-1; 3-Bromo-5-Chlorotoluene

上下游产品

CAS号30273-42-8 4-溴-2-氯-6-甲基苯胺 | CAS号1611-92-3 3,5-二溴甲苯 | CAS号502630-89-9 2-(3-氯-5-甲基苯基)-... | CAS号135340-78-2 2-bromo-6-chlor... | CAS号615-65-6 2-氯-4-甲基苯胺 | CAS号614-83-5 2'-溴-4'-甲基乙酰苯胺 | CAS号24106-05-6 4'-溴-2'-甲基乙酰苯胺 | CAS号866998-75-6 3-bromo-5-chlor... | CAS号95-69-2 4-氯-2-甲基苯胺 | CAS号146948-68-7 2-溴-4-氯-6-甲基苯胺 | CAS号42860-02-6 3-溴-5-氯苯甲酸 | CAS号21900-27-6 3-Bromo-5-chlor... | CAS号146948-68-7 2-溴-4-氯-6-甲基苯胺 | CAS号189161-09-9 3-氯-5-甲基苯腈 | CAS号762292-63-7 1-溴-3-(溴甲基)-5-氯苯

2'-溴-4'-甲基乙酰苯胺置于盐酸,Potassium Chlorate体系中,化学反应生成3-溴-5-氯甲苯
参考文献:Cohen; Raper,Journal Of The Chemical Society,1904,Vol. 85,P. 1269
标题:Cohen; Raper,Journal Of The Chemical Society,1904,Vol. 85,P. 1269

专利信息

专利号:US-2015336866-A1
优先权日:2013-01-01
标题:Synthesis of difluoromethyl ethers and sulfides
发明人：HARTWIG JOHN; FIER PATRICK
权利人:UNIV CALIFORNIA
摘要:The synthesis of difluoromethyl ethers and sulfides with a simple, non-ozone-depleting reagent is described. The difluoromethylation of phenols with this reagent occurs at room temperature within minutes with exceptional functional group tolerance. The mild conditions makes possible tandem processes for the conversion of aryl boronic acids, aryl halides and arenes to difluoromethyl ethers. Mechanistic studies support a reaction pathway involving nucleophilic attack of the phenolate to difluorocarbene.

专利号:US-5922866-A
优先权日:1995-08-30
标题:Process for preparing quinazolin-4-one derivatives
发明人：MIYATA KAZUYOSHI; KUROGI YASUHISA; SAKAI YASUHIRO; TSUDA YOSHIHIKO
权利人:OTSUKA PHARMA CO LTD
摘要:The present invention provides a novel process for preparing a series of quinazolin-4-one derivatives in high yields with reduced amounts of byproducts, the process comprising reacting, in the presence of a base, a trialkylsilyl halide with a compound represented by the formula ##STR1## wherein; R 5 is a phenyl group which may have 1 to 3 substituents each selected from a lower alkyl group, a lower alkoxy group or a halogen atom, a lower alkyl group, a phenyl-lower alkyl group which may have a halogen atom as a substituent on the phenyl ring, a lower alkenyl group, a lower alkoxy-lower alkyl group or a lower alkynyl group; R 6 is a lower alkyl group, a halogen-substituted lower alkyl group, a lower alkoxycarbonyl group or a phenyl group which may have, as a substituent, a lower alkyl group or a group of the formula ##STR2## wherein A is an oxygen atom or a single bond, Z is a lower alkylene group, R 7 is a lower alkyl group and R 8 is a lower alkoxy group, a phenyl group or a phenyl-lower alkoxy group which may have a halogen atom on the phenyl ring; n to produce the quinazolin-4-one derivatives which is valuable as pharmaceuticals or intermediates for synthesis thereof and represented by the formula ##STR3## wherein R 1 ,R 2 , R 3 , R 4 , R 5 , and R 6 are as defined above.

专利号:CN-114163399-B
优先权日:2021-12-14
标题 :Synthesis method of 2H-benzothiazole C2 benzylation derivative

专利号:CN-114163399-A
优先权日:2021-12-14
标题 :Synthesis method of 2H-benzothiazole C2 benzylated derivative