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An Efficient and Green One-pot Synthesis of 12-Aryl-8,9,10,12-tetra hyd robenzo[a]xanthen-11 -one Deriva- tives Promoted by Sulfamic Acid in [BMIM]BF4 Ionic Liquid
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作者 Zang,Hongjun Zhang,Yong +3 位作者 Cheng,Bowen Zhang,Weiwei xu,xianlin Ren,Yuanlin 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2012年第2期362-366,共5页
An efficient and green procedure for the synthesis of novel 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen- 11- one derivatives has been described through one-pot condensation of 2-naphthol, arylaldehyde and 5,5-dimethyl... An efficient and green procedure for the synthesis of novel 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen- 11- one derivatives has been described through one-pot condensation of 2-naphthol, arylaldehyde and 5,5-dimethyl- cyclohexane-l,3-dione in the presence of sulfamic acid (NH2SO3H) in ionic liquid 1-n-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4). These reactions proceed with good yields under short reaction time. Furthermore, the green catalytic system can be recycled specific times with no decreases in yields and reaction rates. 展开更多
关键词 one-pot reaction XANTHENES ionic liquid sulfamic acid
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