1,3-Dibromo-5,5-dimethylhydantoin (DBH) as a cheap and efficient catalyst for the synthesis of polyhydroquinolines and 12-aryl-8,9,10,12-tetrahydro [a] xanthene-11-ones

Authors

Farhad Shirini Department of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.

Gholam Hossein Imanzadeh Department of Chemistry, College of Science, University of Mohaghegh Ardabili, Ardabil, Iran.

Masoumeh Abedini Department of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.

Parisa Ghods Ghasemabadi Department of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran. Department of Chemistry, College of Science, University of Mohaghegh Ardabili, Ardabil, Iran.

Abstract:

1,3-Dibromo-5,5-dimethylhydantoin (DBH), as a cheap and commercially available reagent, is efficiently able to catalyze the synthesis of polyhydroquinoline derivatives and 12-aryl-8,9,10,12-tetrahydro[a] xanthene-11-ones via one-pot multi-component reactions. This novel synthetic method has the advantages of low cost and availability of the catalyst, short reaction times, high to excellent yields, simple and easy work-up and purification of the products compared to the conventional methods reported in the literature.

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1,3-dibromo-5,5-dimethylhydantoin (dbh) as a cheap and efficient catalyst for the synthesis of polyhydroquinolines and 12-aryl-8,9,10,12-tetrahydro [a] xanthene-11-ones

1,3-dibromo-5,5-dimethylhydantoin (dbh), as a cheap and commercially available reagent, is efficiently able to catalyze the synthesis of polyhydroquinoline derivatives and 12-aryl-8,9,10,12-tetrahydro[a] xanthene-11-ones via one-pot multi-component reactions. this novel synthetic method has the advantages of low cost and availability of the catalyst, short reaction times, high to excellent yiel...

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triethylamine-bonded sulfonic acid {[et3n-so3h]cl} as an efficient and homogeneous catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones

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Journal title

Iranian Journal of Catalysis

volume 3 issue 2

pages 57- 65

publication date 2013-06-01

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Keywords

Multi-component reactions 1 3-Dibromo-5 5-dimethylhydantoin Aldehydes 12-Aryl-8 9 10 12-tetrahydro[a] xanthene-11-ones Polyhydroquinoline

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