Lewis base-free thiophosphonium ion: a cationic sulfur atom transfer reagent?
Chemical Communications Pub Date: 2021-04-16 DOI: 10.1039/D1CC01273H
Abstract
Phosphorus(V) sulfide and Lawesson's reagent are commonly used thionating reagents which are considered to operate after dissociation into highly reactive dithiophosphorane fragments. We report the synthesis and properties of a monomeric thiophosphonium ion [R2P![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
S]+. The highly electrophilic species reacts with carbonyls in oxo-for-sulfido exchange reactions at room temperature and undergoes phosphorus–chalcogen bond metathesis reactions with phosphine chalcogenides.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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