Palladium-catalyzed coupling of aryl sulfonium salts with [TBA][P(SiCl3)2] for the construction of tertiary phosphines†
Xi-Cun
Wang 
*a
and
Zheng-Jun
Quan
*a
*a
and
Zheng-Jun
Quan
*a
Abstract
We present a strategy for the synthesis of triarylphosphines via palladium-catalyzed C–P cross-coupling reactions of aryl sulfonium salts with [TBA][P(SiCl3)2]. This method utilizes [TBA][P(SiCl3)2], a phosphorus derivative of phosphoric acid, as the phosphorus source. This approach circumvents the hazards and intricate pathways associated with white phosphorus.
![Graphical abstract: Palladium-catalyzed coupling of aryl sulfonium salts with [TBA][P(SiCl3)2] for the construction of tertiary phosphines](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D5CC00716J&imageInfo.ImageIdentifier.Year=2025)
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