SYNTHESIS OF SOME NEW TYPES OF 3-COUMARINYL-SUBSTITUTED PYRAZOLOPYRIMIDINES AND IMIDAZOTHIAZOLES

Authors

  • V. Rajeswar Rao Department of Chemistry, National Institute of Technology, Warangal–506 004
  • V. Ravinder Reddy Department of Chemistry, National Institute of Technology, Warangal–506 004

DOI:

https://doi.org/10.1007/7011

Keywords:

3-acetylcoumarin, imidazothiazole, pyrazolopyrimidine

Abstract

The  treatment of 3-[3-(dimethylamino)-1-oxo-2-propenyl]chromen-2-ones with 3-amino-4-cyano-pyrazole gives 7-(2-oxo-2H-chromen-3-yl)pyrazolo[1,5-a]pyrimidine-3-carbonitriles.  The reaction of 3-(2-bromoacetyl)coumarins with  2-amino-4-(methoxycarbonylmethyl)thiazole and 2-amino-4-methyl-thiazole gives methyl 2-(6-(2-oxo-2H-chromen-3-yl)imidazo[2,1-b]thiazol-3-yl)acetate  and 3-(2-methyl-imidazo[2,1-b]thiazol-6-yl)-2H-chromen-2-ones, respectively.

How to Cite
Rajeswar Rao, V.; Ravinder Reddy, V.  Chem. Heterocycl. Compd. 2008, 44, 360. [Khim. Geterotsikl. Soedin. 2008, 465.]

For this article in the English edition see DOI 10.1007/s10593-008-0053-1

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Published

2022-08-22

Issue

No. 3 (2008)

Section

Original Papers