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- W4387440396 abstract "We present here a joint experimental and computational study on the formation of benzothiazoles. Our investigation reveals a green protocol for accessing benzothiazoles from acyl chlorides using either water alongside a reducing agent as the reaction medium or in combination with stoichiometric amounts of a weak acid, instead of the harsh conditions and catalysts previously reported. Specifically, we show that a protic solvent, particularly water, enables the formation of 2‐substituted benzothiazoles from N‐acyl 1,2‐aminothiophenols already at room temperature, without the need for strong acids or metal catalysts. DFT Molecular Dynamics simulations coupled with advanced enhanced sampling techniques provide a clear understanding of the catalytic role of water. We demonstrate how bulk water – due to its extended network of hydrogen bonds and an efficient Grotthus mechanism – provides a reaction path that strongly reduces the reaction barriers compared to aprotic environments, namely more than 80 kJ/mol for the first reaction step and 250 kJ/mol for the second. Finally, we discuss the influence of different aliphatic and aromatic substituents with varying electronic properties on chemical reactivity. Besides providing in‐depth mechanistic insights, we believe that our findings pave the way for a greener route toward an important class of bioactive molecules." @default.
- W4387440396 created "2023-10-10" @default.
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- W4387440396 date "2023-10-09" @default.
- W4387440396 modified "2023-10-14" @default.
- W4387440396 title "Revealing the unique role of water in the formation of benzothiazoles: an experimental and computational study" @default.
- W4387440396 doi "https://doi.org/10.1002/chem.202302596" @default.
- W4387440396 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37812133" @default.
- W4387440396 hasPublicationYear "2023" @default.
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