Unsaturated 1,5-diketones and their halogen-substituted derivatives — Preparation and use in the synthesis of heterocycles

Abstract

Published data and the results of the authors' own research on methods for the production of unsaturated 1,5-diketones and halogen-substituted 2-pentene-1,5-diones and their use in the synthesis of difficulty obtainable pyrylium, 3,5-dichloropyrylium, and 3-chlorothiopyrylium salts, aroylfurans, 40-chloroaroylfurans, isoxazolines, pyrazolines, 3,5-dichloropyridines, 1,4-tetramethylenebispyridines, and others are summarized. Aspects of the structure of 2-pentene-1,5-diones and their 2,4-dichloro-substituted analogs and features of their heterocyclization are discussed in comparison with pentane-1,5-diones and their 2,4-dichloro-substituted derivatives.

How to Cite
Kharchenko, V. G.; Pchelintseva, N. V. Chem. Heterocycl. Compd. 1996, 32, 1113. [Khim. Geterotsikl. Soedin. 1996, 1299.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01169220