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Dehydrogenation reaction of triethylamine by an electrophilic terminal phosphinidene complex.

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Reaction of a transiently formed terminal phosphinidene complex with triethylamine resulted in the formation of an sp3 C-H insertion product, as revealed by 31P NMR spectroscopy, which was isolated as… Click to show full abstract

Reaction of a transiently formed terminal phosphinidene complex with triethylamine resulted in the formation of an sp3 C-H insertion product, as revealed by 31P NMR spectroscopy, which was isolated as semi-solid compound. However, if the reaction was continued for 24 h, a primary phosphane complex was obtained eventually. The compounds were characterised by NMR spectroscopy and mass spectrometry. Formation of the final products is explained by a mechanistic proposal based on DFT calculations.

Keywords: terminal phosphinidene; reaction; triethylamine; spectroscopy; phosphinidene complex

Journal Title: Dalton transactions
Year Published: 2023

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