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Updated: Oct 4, 2025
Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
An ortho-rhom-bic polymorph of 2-(1,3,5-di-thia-zinan-5-yl)ethanol or MEA-di-thia-zine
Nate Schultheiss1, Jeremy Holtsclaw2, Matthias Zeller3
1Davidson School of Chemical Engineering, Purdue University, 480 W. Stadium Ave., West Lafayette, IN 47907, USA.
Abstract:
Substituted triazines are a class of compounds utilized for scavenging and sequestering hydrogen sulfide in oil and gas production operations. The reaction of one of these triazines under field conditions resulted in the formation of the title compound, 2-(1,3,5-di-thia-zinan-5-yl)ethanol, C5H11NOS2, or MEA-di-thia-zine. Polymorphic form I, in space group I41/a, was first reported in 2004 and its extended structure displays one-dimensional, helical strands connected through O-H⋯O hydrogen bonds. We describe here the form II polymorph of the title compound, which crystallizes in the ortho-rhom-bic space group Pbca as centrosymmetric dimers through pairwise O-H⋯N hydrogen bonds from the hydroxyl moiety to the nitro-gen atom of an adjacent mol-ecule.
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