THE REACTIONS OF α-METHOXYAMIDES WITH MALONONITRILE IN THE PRESENCE OF TiCl4 AS A CATALYST

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THE REACTIONS OF α-METHOXYAMIDES WITH MALONONITRILE IN THE PRESENCE OF TiCl4 AS A CATALYST

Journal Title: Azerbaijan Chemical Journal - Year 2017, Vol 0, Issue 1

Abstract

By using Asinger reaction 2,5-dihydro-1,3-thiazoles obtained in high yields. Treating these heterocyclic imines with acid chlorides followed by methanolysis of formed N-acyliminium chlorides led to a large number of α-methoxyamides. It was determined that the nucleophilic substitution of methoxy group in these α-methoxyamides by malononitrile in the presence of AlCl3, ZnCl2 as well as in the absence of catalyst did not proceed. The reaction proceeds by using TiCl4 as a catalyst. Yields were: 42–47%. Obtained products were purified by column chromatography

Authors and Affiliations

K. E. Hajiyeva, A. I. Ismiyev, A. M. Maharramov

Keywords

2 5-dihydro-1 3-thiazoles α-methoxyamide malononitrile titan(IV) chloride

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EP ID EP417647
DOI -
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