CAS: 120077-69-2; 4-Bromo-3-Chlorobenzaldehyde

相似化合物

25118-59-6 117738-74-6 57418-97-0

上下游产品

CAS号25118-59-6 4-溴-3-氯苯甲酸

4-溴-3-硝基苯甲醛置于sodium Dithionite,水体系中,化学反应生成4-溴-3-氯-苯甲醛
参考文献:Hodgson; Beard,Journal Of The Chemical Society,1927,P. 25
标题:Hodgson; Beard,Journal Of The Chemical Society,1927,P. 25

专利信息

专利号:US-8853410-B2
优先权日:2009-04-30
标 题:Process for preparing substituted isoxazoline compounds and their precursors
发明人：RACK MICHAEL; KOERBER KARSTEN; KAISER FLORIAN
权利人:RACK MICHAEL; KOERBER KARSTEN; KAISER FLORIAN; BASF SE
摘要:The present invention relates to a new method of preparing halogenated styrene compounds of formula (VIII) n nwhich are precursors in the process of synthesis of substituted isoxazoline compounds of formula (I)n n nwherein R 1 to R 5 , R 8 and R 9 are described as in the description.n n The present invention relates further to the synthesis of compounds of formula (I) starting from acetophenones. The desired styrenes of formula are prepared from the appropriate substituted acetophenone. Asides bromo anilines react with formoxime. Obtained oximes undergo a cycloaddition with the styrenes and give isoxazolines. Compounds of formula (I) can then be prepared in a palladium catalyzed carbonylative amination reaction of the isoxazolines.