作者:Tetsuo Nozoe、Kimio Shindo、Hidetsugu Wakabayashi、Teruo Kurihara、Jun Uzawa
DOI:10.1246/cl.1995.687
日期:1995.8
the reaction of guaiazulene and its 3-bromo compound with 1 equivalent of bromine in hexane at −20 °C. The former compound afforded in methanol a mixture of guaiazulene, 3,3′-biguaiazulene, and oligomers, and gave 3-bromoguaiazulene quantitatively with alkali. Dibromoguaiazulenium bromide afforded with further moles of bromine in aqueous THF a mixture of guaiazulenequinone, 3-bromo-1-hydroxyguaiazulen-5-one
3-Bromoguaiazulenium bromide 和 3,3-dibromo guaiazulenium bromide 分别由愈创甘油醚及其 3-溴化合物与 1 当量溴在 -20°C 的己烷中反应得到。前一种化合物在甲醇中得到愈创甘油醚、3,3'-双愈创甘油醚和低聚物的混合物,并用碱定量得到3-溴愈创甘油醚。Dibromoguaiazulenium bromide 与其他摩尔数的溴在 THF 水溶液中得到愈创甘油醚、3-bromo-1-hydroxyguaiazulen-5-one 和深蓝色固体 A 的混合物,其比例取决于反应条件。