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Updated: Nov 20, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
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Published on: April 9, 2018

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Preparation, structure elucidation, and antioxidant activity of new bis(thiosemicarbazone) derivatives

Hasan Yakan1

  • 1Department of Mathematics and Science Education, Faculty of Education, Ondokuz Mayis University, Samsun Turkey.

Turkish Journal of Chemistry
|January 25, 2021
PubMed

Keywords:
DPPHSchiff basesThiosemicarbazidesspectroscopic methodsstructure–activity relationship

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Preparation and Reactions of Thiols02:33

Preparation and Reactions of Thiols

Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
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One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
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