College of Chemistry and Environmental Science, Hebei University, Baoding 071002, PR China.
Ultrason Sonochem. 2012 Jan;19(1):1-4. doi: 10.1016/j.ultsonch.2011.05.001. Epub 2011 May 8.
Synthesis of 2,2'-arylmethylene bis(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) derivatives catalyzed by urea via the condensation of aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione was carried out in 80-98% yields at 50 °C in aqueous media under ultrasound. This method provides several advantages such as environment friendliness, high yields and simple work-up procedure.
在超声条件下，以水为介质，于 50°C 下，通过芳香醛和 5,5-二甲基-1,3-环己二酮的缩合反应，脲催化合成了 2,2'-芳基亚甲基双(3-羟基-5,5-二甲基-2-环己烯-1-酮)衍生物，产率为 80-98%。该方法具有环境友好、产率高、操作简单等优点。
