CAS: 1193-72-2; 1-Bromo-2,4-Dichlorobenzene

相似化合物

19393-96-5 19393-92-1 694-80-4

上下游产品

2,4-Dichloro-benzenediazonium 5-bromo-2,4-dichloro-aniline 2,4-Dichloroaniline methanesulfonyl chloride 2,4-dichlorophenol 2-Bromo-5-chlorophenol 1-bromo-2,4-dichloro-3,5-dinitro-benzene 2,4-Dichlor-4'-trifluormethylbenzophenon

1,3-二氯苯置于甲烷磺酸,Monobromoisocynaurate体系中,用 乙醚 用作溶剂,化学反应 6.0H,以65%的收率获得2,4-二氯溴苯
参考文献:通过单溴异氰尿酸钠(smbi)进行溴化.
标题:通过单溴异氰尿酸钠(smbi)进行溴化.
摘要:用一溴异氰尿酸钠(smbi)1溴化具有激活和失活取代基的各种芳族化合物,将二乙醚,二乙醚-甲磺酸,三氟乙酸或硫酸用作溶剂.因此,硝基苯在硫酸中方便地被溴化,苯在乙醚-甲磺酸中很容易被单溴化,并且苯酚在回流条件下在温和条件下在邻位选择性溴化.对于容易质子化的取代基,在与1的反应中可以使用三氟乙酸作用作溶剂,相反,Nbs在三氟乙酸中无效.相对于nbs,这提供了一种更好的试剂.除芳族化合物外,烯烃,酮和酯也用1溴化.
Doi:10.1039/b302738D

专利信息

专利号:EP-0058173-B1
优先权日:1980-08-26
标 题:Process for the synthesis of aryloxy derivatives
摘要:Process for the synthesis of compounds of formula I (FORMULA) wherein O, is a substituted or unsubstituted aryl or heteroaryl group and U and V may be chosen from a range of substituents including hydrogen, halogen, alkyl and alkoxy; the process comprising reacting a sulfate ester of formula II, wherein Q is a cation, with a compound of formula III, wherein L is a leaving group (FORMULA) and hydrolysing the sulfate ester formed. Preferably the sulfate ester of formula II is prepared by the oxidation of a phenol of formula IV with a persulfate.

专利号:WO-8200638-A1
优先权日:1980-08-26
标 题 :Process for the synthesis of aryloxy derivatives

专利号:EP-0058173-A1
优先权日:1980-08-26
标 题:PROCESS FOR THE SYNTHESIS OF ARYLOXY DERIVATIVES.

专利号:CN-116535298-B
优先权日:2023-07-06
标 题:A kind of synthesis method of 3',5'-dichloro-2,2,2-trifluoroacetophenone