New Route to Synthesis of Unexpected Pyridoin Derivatives: Their Structure Determination with Spectroscopic and X-Ray Methods

Abstract

The new 1,2,4-triazine-3-thione derivatives were obtained by a new route using a one-step process. The structure of the compounds was determined with infrared (IR), ¹H NMR, and ¹³C NMR spectroscopic methods and elemental analysis. A representative x-ray crystallographic analysis of 3 was given, and its x-ray data are discussed in detail. This is a facile procedure and shorter than earlier methods.

Keywords:

• Cyclization
• pyridoin
• triazine-3-thione

ACKNOWLEDGMENTS

I express my sincere thanks to Prof. Muharrem Dincer, Faculty of Arts and Sciences, Physics Department, Ondokuz Mayis University (Samsun, Turkey), for preparing the crystal structure analysis utilized in this article. I also express my sincere thanks to Prof. Emine Kilic, Faculty of Arts and Sciences, Chemistry Department, Ankara University (Ankara, Turkey), and Assoc. Prof. Suleyman Servi, Faculty of Arts and Sciences, Chemistry Department, Firat University (Elazig, Turkey), for preparing the reaction mechanism proposed in this article.

Notes

Symmetry codes: (i) 1 − x, 1 − y,−z; (ii) −x,−y, 1 − z; (iii) 1 − x, 1 − y, 1 − z.