Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
3 years ago

Multi‐talented gallaphosphene for Ga–P–Ga heteroallyl cation generation, CO2 storage and C(sp3)–H bond activation

Stephan Schulz, Mahendra K. Sharma, Christoph Wölper, Gebhard Haberhauer
Gallaphosphene LGa(Cl)PGaL 2 (L = HC[C(Me)N(2,6‐i‐Pr2C6H3)]2), which is synthesized by reaction of LGa(Cl)PCO 1 with LGa, reacts with [Na(OCP)(dioxane)2.5] to LGa(OCP)PGaL 3, whereas chloride abstraction with LiBArF4 yields [LGaPGaL][BArF4] (BArF4 = B(C6F5)4) 4. 4 represents a heteronuclear analogue of the allyl cation according to quantum chemical calculations. Remarkably, 2 reversibly reacts with CO2 to yield L(Cl)Ga‐P[μ‐C(O)O]2GaL 5, while reactions with acetophenone and acetone selectively give compounds 6 and 7 by C(sp3)‒H bond activation.

Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202014381

DOI: 10.1002/anie.202014381

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