CAS: 351003-59-3; 4-Bromo-2-Chlorobenzenesulfonamide

上下游产品

CAS号701-34-8 4-溴苯磺酰胺

4-溴苯磺酰胺置于n-氯代丁二酰亚胺,三氟甲磺酸,Palladium Diacetate体系中,用 1,2-二氯乙烷 作为反应溶剂,化学反应 3.5H,以35%的收率获得产物4-溴-2-氯苯磺胺
参考文献:区域和化学选择性c 弱配位的h氯化/缺电子芳烃的溴化和相对方向基团能力的研究
标题:区域和化学选择性c 弱配位的h氯化/缺电子芳烃的溴化和相对方向基团能力的研究
摘要:都是相对的:已经开发了一种实用而有效的pd Ii催化的区域和化学选择性氯化/溴化反应,可轻松合成各种芳族氯化物.该反应显示出优异的反应活性,非常好的官能团耐受性和高收率.进行了一项初步研究,以评估各种功能的相对指导能力.
DOI:10.1002/anie.201300176

专利信息

专利号:US-2007275968-A1
优先权日:2004-09-07
标 题 :Substituted Biphenyl Derivative
发明人：KURATA HITOSHI; NISHIMATA TOYOKI; WATANABE YUKIKO; EBISAWA MASAYUKI; FUJIMOTO TEPPEI; KOBAYASHI HIDEKI
权利人:KURATA HITOSHI; NISHIMATA TOYOKI; WATANABE YUKIKO; EBISAWA MASAYUKI; FUJIMOTO TEPPEI; KOBAYASHI HIDEKI
摘要:The present invention relates to a biaryl derivative or a pharmacologically acceptable salt thereof having an excellent collagen-synthesis inhibition activity. A biaryl derivative having a structure represented by the following General Formula (I) or a pharmacologically acceptable salt thereof: n nwherein n R 1 represents a C 6 -C 10 aryl group which is substituted with one to three group(s) each independently selected from the group consisting of a group defined by formula R-L-, a di-(C 1 -C 6 alkyl)amino group, a di-(C 1 -C 6 alkyl)aminosulfonyl group, a hydroxyaminocarbonyl group, and a halogen atom, and so on; R represents a C 1 -C 6 alkyl group, and so on; L represents a sulfonyl group, an aminosulfonyl group, or a sulfonylamino group, and so on; R 2 represents a hydrogen atom, and so on; A represents a group defined by formula (II), (III), or (IV); R 3 represents a C 1 -C 6 alkyl group, and so on; and R 4 represents a C 1 -C 6 alkyl group, and so on.