DIRECTION OF ISOMERIZATION OF 5-HYDROXY-3-PROPARGYLTHIO-1,2,4-TRIAZINES ACCORDING TO <sup>1</sup>H/<sup>15</sup>N HETERONUCLEAR MULTIPLE BOND CORRELATION (HMBC) SPECTRA

Authors

  • В. Ю. Смутин Scientific-Research Institute of Chemistry, St. Petersburg State University, Petrodvorets, St. Petersburg 198504
  • В. А. Гиндин Scientific-Research Institute of Chemistry, St. Petersburg State University, Petrodvorets, St. Petersburg 198504
  • Н. О. Саблина Scientific-Research Institute of Chemistry, St. Petersburg State University, Petrodvorets, St. Petersburg 198504

DOI:

https://doi.org/10.1007/8038

Keywords:

5-hydroxy-3-propargyl-1, 2, 4-triazine, 3-methyl-7H-thiazolo[3, 2-b]-1, 4-triazin-7-ones, rearrangement, regioisomer, 1H/15N HMBC spectra

Abstract

We have studied isomerization  of  6-substituted  5-hydroxy-3-propargylthio-1,2,4-triazines using base catalysis. We have used NMR correlation spectroscopy (1H/15N HMBC spectra) to prove the structure of the  regioisomer formed. The type of regioisomer formed (3,6-dimethylthiazolo[3,2-b]-1,2,4-triazin-7-one) allows us to say that isomerization occurs as a direct propynyl rearrangement.

How to Cite
Smutin, V. Yu.; Gindin, V. A.; Sablina, N. O.  Chem. Heterocycl. Compd. 2006, 42, 403. [Khim. Geterotsikl. Soedin. 2006, 453.]

For this article in the English edition, see DOI 10.1007/s10593-006-0100-8

 

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Published

2023-09-12

Issue

No. 3 (2006)

Section

Original Papers