Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates

A reliable synthesis of C5-unsubstituted 1,3,4-thiadiazole-2-thiolates is described that avoids potentially explosive or laborious steps. This work presents a reliable method for preparing the starting material dithioformate from carbon disulfide and potassium or sodium tri-<i>sec</i>-bu...

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Main Authors: Sean Ray Kahnert, Andreas Schmidt
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Molbank
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Online Access:https://www.mdpi.com/1422-8599/2025/2/M2010
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author Sean Ray Kahnert
Andreas Schmidt
author_facet Sean Ray Kahnert
Andreas Schmidt
author_sort Sean Ray Kahnert
collection DOAJ
description A reliable synthesis of C5-unsubstituted 1,3,4-thiadiazole-2-thiolates is described that avoids potentially explosive or laborious steps. This work presents a reliable method for preparing the starting material dithioformate from carbon disulfide and potassium or sodium tri-<i>sec</i>-butylhydroborates for the preparation of the mesoionic title compounds with potassium hydrazinecarbodithioates. New 1,3,4-thiadiazole-2-thiolates are presented, and missing structural analysis data of known derivatives are added (1D- and 2D-NMR, HR-ESI-MS, IR).
format Article
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institution Kabale University
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spelling doaj-art-b1a43d0f7f844ba3a67a4dd25829d1722025-08-20T03:27:35ZengMDPI AGMolbank1422-85992025-05-0120252M201010.3390/M2010Synthesis of Mesoionic 1,3,4-Thiadiazole-2-ThiolatesSean Ray Kahnert0Andreas Schmidt1Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, GermanyInstitute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, GermanyA reliable synthesis of C5-unsubstituted 1,3,4-thiadiazole-2-thiolates is described that avoids potentially explosive or laborious steps. This work presents a reliable method for preparing the starting material dithioformate from carbon disulfide and potassium or sodium tri-<i>sec</i>-butylhydroborates for the preparation of the mesoionic title compounds with potassium hydrazinecarbodithioates. New 1,3,4-thiadiazole-2-thiolates are presented, and missing structural analysis data of known derivatives are added (1D- and 2D-NMR, HR-ESI-MS, IR).https://www.mdpi.com/1422-8599/2025/2/M2010mesoionic compoundpotassium dithioformatepotassium methanedithioatemesomeric betainehydrazinesselectride
spellingShingle Sean Ray Kahnert
Andreas Schmidt
Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
Molbank
mesoionic compound
potassium dithioformate
potassium methanedithioate
mesomeric betaine
hydrazines
selectride
title Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
title_full Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
title_fullStr Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
title_full_unstemmed Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
title_short Synthesis of Mesoionic 1,3,4-Thiadiazole-2-Thiolates
title_sort synthesis of mesoionic 1 3 4 thiadiazole 2 thiolates
topic mesoionic compound
potassium dithioformate
potassium methanedithioate
mesomeric betaine
hydrazines
selectride
url https://www.mdpi.com/1422-8599/2025/2/M2010
work_keys_str_mv AT seanraykahnert synthesisofmesoionic134thiadiazole2thiolates
AT andreasschmidt synthesisofmesoionic134thiadiazole2thiolates