Application of 3179-31-5, New Advances in Chemical Research in 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 3179-31-5, name is 1H-1,2,4-Triazole-3-thiol, molecular formula is C2H3N3S, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.
Step B–Cyclopentylmethyl 1,2,4-Triazol-3-yl Sulfide 1,2,4-Triazole-3-thiol (49.0 g; 0.484 mol) and 86% potassium hydroxide (32.0 g; 0.484 mol) were dissolved in methanol (500 ml) and refluxed for 1 h. The solution was then evaporated to dryness, and the residue redissolved in methanol (500 ml). Cyclopentylmethyl methanesulfonate (86.0 g; 0.484 mol) was added, the solution stirred under reflux for 8 h, and at room temperature overnight. The solution was evaporated and the residue dissolved in ether (500 ml) and water (1 1). The aqueous layer was separated and extracted with another portion of ether (500 ml). The ether solutions were combined, washed with saturated brine (500 ml), dried (MgSO4), filtered and evaporated, to afford cyclopentylmethyl 1,2,4-triazol-3-yl sulfide (85.0 g; 96%) as a waxy, white solid. NMR – d(CDCl3; 60 MHz) 1.0-2.4 (10H, m), 3.2 (2H, d, J=7 Hz), 8.1 (1H, s) and 13.4 (1H, br s).
The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.I hope my blog about 1H-1,2,4-Triazole-3-thiol is helpful to your research.
Reference:
Patent; Rohm and Haas Company; US5308830; (1994); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics