Notes

One-pot synthesis of 3-(5’-subsituted-benzoxazol-2’-yl)-7-diethylamino-chromen-2-one catalyzed with ZSM-5

  • Jiang Shaoliang ,
  • Han Liang
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  • a College of Pharmaceutical Science, Industial Catalysis Subjects, Zhejiang University of Technology, Hangzhou 310032;
    b College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032

Received date: 2012-01-29

  Revised date: 2012-03-05

  Online published: 2012-03-31

Supported by

Project supported by the Natural Science Foundation of Zhejiang Province (No. Y12B030037) and the Foundation of Department of Education of Zhejiang Province (No. Y201018410).

Abstract

3-(5’-subsituted-benzooxazol-2’-yl)-7-diethylamino-chromen-2-ones were prepared by one pot three-component reaction of 4-diethylaminosalicylaldehydes, ethyl cyanoacetate and o-aminophenols in refluxing n-butanol catalyzed with ZSM-5. This method has advantages of better yields and more environment-friendly process compared with that catalyzed with liquid catalysts.

Cite this article

Jiang Shaoliang , Han Liang . One-pot synthesis of 3-(5’-subsituted-benzoxazol-2’-yl)-7-diethylamino-chromen-2-one catalyzed with ZSM-5[J]. Chinese Journal of Organic Chemistry, 2012 , 32(05) : 930 -933 . DOI: 10.6023/cjoc1111173

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