Novel and chemoselective one-pot synthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones starting from benzyl alcohols promoted by [(C14H24N4)2W10O32]-[bmim]NO3
AbstractA new and practical promoter system for one-pot, efficient, chemoselectivesynthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones using [(C14H24N4)2W10O32]-[bmim]NO3 under solvent-free conditions is described. The present work opens up a new and ecofriendly synthetic route to Erlenmeyer–Plöchl adductsfrom primary benzyl alcohols in a one-pot operation. Graphical abstract
摘要一种新型实用的促进剂体系,可使用[(C 14 H 24 N 4)2 W 10 O 32 ]-[bmim进行一锅高效化学选择合成4-亚芳基-2-苯基-5(4 H)-恶唑酮描述了在无溶剂条件下的] NO 3。目前的工作为一锅操作从伯苄醇到Erlenmeyer-Plöchl加合物的合成开辟了一条新的环保途径。 图形概要
Khan, Saadia Razi; Ghouri, Nida; Karim, Aneela, Journal of the Chemical Society of Pakistan, 2015, vol. 37, # 5, p. 980 - 985
作者:Khan, Saadia Razi、Ghouri, Nida、Karim, Aneela、Naz, Farzana、Fakhri, Muhammad Imran、Perveen, Shahnaz、Khan, Khalid Mohammed、Taha, Muhammad、Choudhary, Muhammad Iqbal
DOI:——
日期:——
[C6(MIm)2]2W10O32. 2H2O: A novel and powerful catalyst for the synthesis of 4-arylidene-2-phenyl-5(4)-oxazolones under ultrasonic condition
作者:Mahboubeh Rostami、Ahmad R. Khosropour、Valiollah Mirkhani、Iraj Mohammadpoor-Baltork、Majid Moghadam、Shahram Tangestaninejad
DOI:10.1016/j.crci.2011.02.003
日期:2011.10
Résumé Di[1,6-bis(3-methylimidazolium-1-yl)hexane] decatungstate dihydrate ([C6(MIm)2]2W10O32. 2H2O) as a new family of polyoxometalate-based dicationic ionic liquids (POM-DIL) is synthesized and employed as a novel and powerful heterogeneous catalyst in the synthesis of 4-arylidene-2-phenyl-5(4)-oxazolones (azlactones) under ultrasound-assisted solvent-free condition. On the basis of the results, the products were obtained in excellent yields under mild condition. Utilization of easy work-up and purification make it very interesting from an economic perspective. Moreover, a recycling study confirmed that the catalyst can be reused multiple times without significant loss of its activity.