Investigation of heterocycles containing nitrogen or sulfur. 48. Derivatives of 1-morpholinooxalyl-1,2-dihydrothiazolo-[5,4-b]pyridine, their structure, and reactions

Autor:	Solov'eva, N. P., Anisimova, O. S., Peresleni, E. M., Turchin, K. F., Sheinker, Yu. N., Levkovskaya, L. G., Serochkina, L. A., Safonova, T. S.
Zdroj:	Chemistry of Heterocyclic Compounds; August 1993, Vol. 29 Issue: 8 p966-971, 6p
Abstrakt:	The structures of the products of reactions of 1-N-morpholinooxahi-1,2-dihydrothiazolo-[5,4-b]pyridine have been studied by IR, NMR, UV, and mass spectroscopy. Geometric (cis-anti) and rotational (about the CO-N amide bond) isomers of 1-N-morpholinooxalyl-2-propionyi-5-chloro-1,2-dihydrothiazolo-[5,4-b]pyridine oxime have been observed and studied. Treatment of 1-N-morpholinooxalyl-2-propionyl-5-chloro-1,2-dihydrothiazolo[5,4-b]pyridine with ethanolic alkali gave 2-propionyl-5-chlorothiazolo-[5,4-b]pyridine, while treatment with concentrated H2SO4 gave 1,2-dioxo-ethylidene-7-chloroxazolidino[3,2-f]pyrido[2,3-b]1,4-thiazine.
Databáze:	Supplemental Index
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