Nitrogen-, oxygen-, and sulfur-containing heterocycles. 43. Synthesis and properties of 6-oxo-5H-pyrido[2,3-b][1,4]thiazines
Article
Received:
- 37 Downloads
- 1 Citations
Abstract
It has previously been observed that the carbamide residue in 2-phenacyl-3-ureido- and 2-cyanomethylpyridine is readily cleaved on cyclization to pyridothiazines [1–4]. It was of interest to establish whether a similar process occurs when the carbonyl component is an α-halo- or unsaturated acid. If this were the case, this reaction could be used to obtain 6-oxopyrido[2,3-b][1,4]thiazines.
Keywords
Oxygen Nitrogen Carbamide Organic Chemistry Carbonyl
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
Literature cited
- 1.L. G. Levkovskaya and T. S. Safonova, Khim. Geterotsikl. Soedin., No. 1, 68 (1971).Google Scholar
- 2.L. G. Levkovskaya and T. S. Safonova, Khim. Geterotsikl. Soedin., No. 6, 970 (1969).Google Scholar
- 3.T. S. Safonova, V. A. Chernov, and N. I. Traven', Inventor's Certificate No. 323405; Byull. Izobret., No. 1 (1972).Google Scholar
- 4.N. I. Traven' and T. S. Safonova, Khim. Geterotsikl. Soedin., No. 6, 787 (1980).Google Scholar
- 5.T. Takahashi and J. Maki, Pharm. Bull. Jpn., 3, 92 (1955); Chem. Abstr., 50, 10 101 (1956).Google Scholar
- 6.L. G. Levkovskaya, N. V. Sazonov, N. A. Grineva, I. E. Mamaeva, L. A. Serochkina, and T. S. Safonova, Khim. Geterotsikl. Soedin., No. 1, 122 (1985).Google Scholar
Copyright information
© Plenum Publishing Corporation 1985