Iminophosphonamido Stannylenes Enable Quantitative CO₂ Conversion to Isocyanates

Iminophosphonamido-supported silylaminostannylenes activate CO₂ to afford siloxystannylene and isocyanates via carbamatostannylene intermediates. DFT calculations support a two-step rearrangement involving nucleophilic attack and silyl migration, offering a rare example of a...