catalysts has been investigated. It has been established that depending upon the reaction conditions trienone 2,1 -methyltrienone3, dienone 4, diacetoxyketone5 or dione 6 are formed as the major products. Dienone 4 and dione 6 are the main compounds of the reactions of tosyloxyketone 10 with KHSO4 and HBraq, respectively. The reaction of acetoxyketone 8 with HBraq furnishes epimeric 3-bromoketones 12 and 13
已经研究了用选定的酸性催化剂将标题化合物芳构化。已经确定,根据反应条件,形成
三烯酮2,1-甲基
三烯酮3,二烯酮4,
二乙酰氧基酮5或二酮6作为主要产物。二烯酮4和二酮6分别是
甲苯磺酰氧基酮10与KHSO 4和HBr
水溶液反应的主要化合物。乙酰氧基酮8与HBr
水溶液的反应提供了差向异构的3-
溴代酮12和13 比例约为1:1。