Multi-Talented Gallaphosphene for Ga-P-Ga Heteroallyl Cation Generation, CO2 Storage, and C(sp3)-H Bond Activation

Gallaphosphene L(Cl)GaPGaL (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 LiBAr4F yields [LGaPGaL][BAr4F] (4; BAr4F=B(C6F5)(4)). 4 represents a heteronuclear analog of the allyl cation according to quantum chemical calculations. Remarkably, 2 reversibly reacts with CO2 to yield L(Cl)Ga-P[mu-C(O)O](2)GaL (5), while reactions with acetophenone and acetone selectively give compounds 6 and 7 by C(sp(3))-H bond activation.

Automated summary

The synthesized Gallaphosphene displayed diverse chemical properties during reactions, including different reaction pathways and products with different substrates.