Three-Component Diazaphospholium Synthesis Enables P(V)-to-P(III) Conversion and Ylide-Mediated CO ₂ and CS ₂ Activation

Linwei Huang; Jannis Fidelius; Kai Schwedtmann; Philipp Royla; Rosa Maria Gomila; Antonio Frontera; Jan J. Weigand

doi:10.1039/d6qi01242f

January 1, 2026Inorganic Chemistry FrontiersOpen Access

Three-Component Diazaphospholium Synthesis Enables P(V)-to-P(III) Conversion and Ylide-Mediated CO ₂ and CS ₂ Activation

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Key Points

The research aims to develop a synthesis method for diazaphospholium salts that facilitates the conversion of P(V) to P(III) and allows for effective CO2 and CS2 activation.
Synthesis involved a three-component cycloaddition of an imidazoliumyl-substituted phosphenium surrogate with nitriles and N-benzylideneaniline.
Target compounds were characterized and their reactivity evaluated based on base-dependence.
Successful synthesis resulted in diazaphospholium triflate salts with significant base-dependent activation capabilities.
Demonstrated efficient P(V) to P(III) conversion through the synthesized heterocycles.

Implication

Demonstrates enhanced CO2 and CS2 activation in diazaphospholium synthesis, indicating efficient conversion methods.

Abstract

Diazaphospholium triflate salts 3 [OTf] 2 were synthesized through a three-component (1+2+2)-cycloaddition of the imidazoliumyl-subsituted phosphenium surrogate [ L C ‑P(OTf)Ph] + cation ( L C = 4,5-dimethyl-1,3-diisopropylimidazolium) with nitriles and N -benzylideneaniline. These P(V) heterocycles display pronounced base-dependent...

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Cite This Study

Huang et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf701faef96ed7f0589cb https://doi.org/10.1039/d6qi01242f

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Three-Component Diazaphospholium Synthesis Enables P(V)-to-P(III) Conversion and Ylide-Mediated CO ₂ and CS ₂ Activation

Key Points

Implication

Abstract

Discussion

Cite This Study

Three-Component Diazaphospholium Synthesis Enables P(V)-to-P(III) Conversion and Ylide-Mediated CO ₂ and CS ₂ Activation

Key Points

Implication

Abstract

Discussion

Cite This Study

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