Synthesis of new polysubstituted (pyrazoles, pyrimidines and quinolines) five and six-membered heterocycles: reaction of α,α-dioxoketene dithioacetals with nucleophiles

Ebraheem, M. A and Rai, K. M. Lokanatha and Kudva.N, N. U and Bahjat, A. S (2010) Synthesis of new polysubstituted (pyrazoles, pyrimidines and quinolines) five and six-membered heterocycles: reaction of α,α-dioxoketene dithioacetals with nucleophiles. Tetrahedron Letters, 51 (27). 3486 - 3492. ISSN 0040-4039

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Abstract

A novel synthesis of polysubstituted pyrazoles 3a–d, pyrimidines 4a–f and quinolines 5a–c via the reaction of α,α-oxoketene dithioacetals 2a–c with hydrazine hydrate, malonohydrazide, urea, thiourea and aniline is reported and the synthetic potential of the method is demonstrated. The structure of the new compounds was established upon their elemental analysis, IR, 1H NMR and 13C NMR.

Item Type:	Article
Uncontrolled Keywords:	α,α-Oxoketene dithioacetals, Polysubstituted pyrazole, Pyrimidines and quinolines
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	LA manjunath user
Date Deposited:	09 Jul 2019 05:53
Last Modified:	09 Jul 2019 05:53
URI:	http://eprints.uni-mysore.ac.in/id/eprint/4969

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