Events The 12th International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 12th International Electronic Conference on Synthetic Organic Chemistry

Published date

23 Nov, 2008

Citation

Ali Gharib, Manouchehr Jahangir, Mina Roshani, Catalytic Synthesis of Ethyl ß-arylamino Crotonates and 2-methyl-4-quinolone using Preyssler Heteropolyacid, H14[NaP5W30O110] and its supported as Catalysts, in Proceedings of The 12th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2008, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-12-01213

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Catalytic Synthesis of Ethyl ß-arylamino Crotonates and 2-methyl-4-quinolone using Preyssler Heteropolyacid, H14[NaP5W30O110] and its supported as Catalysts

Ali Gharib ^1,2

Manouchehr Jahangir ¹

Mina Roshani ¹

1. Department of Chemistry, Islamic Azad University, Mashhad, IRAN

2. Agricultural Researches and Services Center, Mashhad, IRAN

Abstract

A variety of aromatic anilines react with methyl acetoacetate in the presence of catalytic amount of Preyssler’s and molybdenum substituted Preyssler heteropolyacid, H14[NaP5W30O110], H14[NaP5W29MoO110] and silica supported Preyssler, H14[NaP5W30O110]/SiO2, to afford the corresponding ethyl ß-arylamino crotonates, in excellent yields. The catalyst can be recovered and reused. Synthesis of 4-quinolones from the cyclization of ethyl ß-arylamino crotonates in the presence of diphenyl ether under reflux conditions is reported.

Keywords

ethyl ß-arylamino crotonates

4-quinolone

Preyssler

heteropolyacid

catalyst

Asymmetric Synthesis of (+)-Coniine,(-)-Coniceine, (+)-b-Conhydrine,(+)-Sedamine and(+)-Allosedamine by a Strategic Combination of RCM with Nucleophilic 1,2-Addition on SAMP-Hydrazones

Catalytic Oxidation of Alcohols, Phenols using Vanadium Substituted Keggin Heteropolyacids and Preyssler catalysts in Green conditions