Application of Non-Corrosive Acids in Three-Component, One-Pot Synthesis of Commercial Coumarin Dye

Authors

  • S. Norozy Department of Organic Colorants, Institute for Color Science and Technology
Abstract:

The efficiency of HZSM-5 Zeolite, tungestophosphoric acid (H3PW12O40) and tungestosililic acid (H4O40SiW12) were investigated in three-component, one-pot synthesis of coumarin dyes. These green and noncorrosive acids were highly efficient in synthesis of some coumarin dyes in excellent yield during concurrent formation of coumarin and benzimidazole or benzoxazole heterocycles (e.g. C. I. disperse yellow 232 as a commercial fluorescence dye was synthesized using tungestophosphoric acid in 45 minutes and %90 yield). Evaluations of the yields of products were studied in organic solvent (n-pentanol) and aqueous media and under solvent-free conditions considering the reaction times were studied as well. The results demonstrated that n-pentanol as an organic solvent was the best media for these preparations. Prog. Color Colorants Coat. 3(2010), 102-109. © Institute for Color Science and Technology.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

One-pot Three-component Synthesis of Phosphonate Derivatives

The stable phosphonate derivatives have easily synthesized by the reactions involving trialkyl(aryl) phosphites and dimethyl acetylenedicarboxylate in the presence of 4-nitrophenol and/or acid chlorides, dialkyl(aryl) phosphites and N-methylimidazole at 70 oC under solventfree conditions.

full text

One-Pot, Three-Component Arylalkynyl Sulfone Synthesis

A one-pot three-component protocol for the preparation of arylsulfonyl alkynes through the reaction of ethynyl-benziodoxolone (EBX) reagents, DABSO (DABCO·SO2), and either organomagnesium reagents or aryl iodides with a palladium catalyst is reported. A broad range of aryl and heteroarylalkynyl sulfones were obtained in 46-85% overall yield.

full text

An Efficient Synthesis of 4H-chromene Derivatives by a One-pot, Three-component Reaction

A facile and efficient one-pot, multicomponent synthesis of 4H-chromenes is reported, through the reaction of arylglyoxalmonohydrates with 1,3-diketones and malononitrile in eTEMPthanol in the presence of L-proline as a catalyst.

full text

One-Pot Three-Component Synthesis of Imidazo[1,5-a]pyridines

A one-pot three component condensation synthesis of imidazo[1,5-a]pyridines using of various aromatic aldehydes and dipyridil ketone with ammonium acetate in the presence of Lithium chloride as catalyst in good yields under microwave irradiation has been described.

full text

Three-component, one-pot sequential synthesis of glyco-hydantoin conjugates.

The development of new methods for linking sugars to heterocycles and peptides is an attractive area of research because glyco-conjugates play important roles in biology and medicine and are indispensable tools for probing several processes. Herein we report a one-pot, three-component sequential procedure for the synthesis of a novel class of glyco-conjugates, i.e. glyco-hydantoin conjugates, i...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 3  issue 2

pages  102- 109

publication date 2011-03-10

By following a journal you will be notified via email when a new issue of this journal is published.

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023