CAS: 23488-38-2; 1,2,4,5-Tetrabromo-3,6-Dimethylbenzene

上下游产品

2-ethyl-1-methylcyclopentane para-xylene 2-ethyl-p-xylene 1,4 dimethylcyclohexane tetrabromoterephthalic acid

1,4-二甲基环己烷置于aluminum Tri-Bromide,溴体系中,化学反应生成2,3,5,6-四溴对二甲苯
参考文献:Zelinsky; Naumow,Chemische Berichte,1898,Vol. 31,P. 3206
标题:Zelinsky; Naumow,Chemische Berichte,1898,Vol. 31,P. 3206

专利信息

专利号:RU-2050368-C1
优先权日:1992-01-22
标题 :Method of synthesis of low-molecular polystyrene

专利号:US-7294732-B2
优先权日:2002-08-07
标 题:Silicon compound
发明人：OHNO KOHJI; TSUJII YOSHINOBU; FUKUDA TAKESHI
权利人:CHISSO CORP
摘要:A silicon compound represented by Formula (1). In Formula (1), R 1 is a group independently selected respectively from the group consisting of a hydrogen atom, alkyl, substituted or non-substituted aryl and substituted or non-substituted arylalkyl, and A 1 is an organic group substituted with a halogenated sulfonyl group and is preferably a group represented by Formula (2). In Formula (2), X is halogen; R 2 is alkyl; a is an integer of 0 to 2; and Z 1 is a single bond or alkylene having a carbon number of 1 to 10. n n n n n n n n n n The silicon compound provided by the present invention is a silsesquioxane derivative having an excellent living polymerizable radical polymerization initiating function. For example, it is possible to commence polymerization by allowing an acryl base monomer to coexist to form an acryl base polymer making use of one point of the structure of the silsesquioxane in the present invention as a starting point. Because a halogenated sulfonyl group has a strong electrophilicity, it is possible to synthesize various silsesquioxane derivatives by reacting the silicon compound provided by the present invention with various nucleophilic reagents, and it can actively be used as an intermediate useful for organic synthesis.