A Facile Synthesis of Xanthene-1,8(2H)-dione Derivatives by Using Tetrapropylammonium Bromide as Catalyst

作者：Marjani Ahmad Poursattar^*; Abdollahi Sima; Ezzati Mahnaz; Nemati Kande Ebrahim

来源：Journal of Heterocyclic Chemistry, 2018, 55(6): 1324-1330.

DOI：10.1002/jhet.3164

Several new derivatives of 9-aroyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione have been synthesized in yields varying from high to excellent by the condensation reaction of arylglyoxals with 1,3-diketones (cyclohexane-1,3-dione or dimedone) and TPAB as an inexpensive, recoverable, and non-toxic catalyst in the presence of ethanol/water under reflux conditions.

• 出版日期2018-6