Synthesis of an NHC-Coordinated Dialkyldisilavinylidene and Its Oxidation Providing a Silicon Analog of an Acetolactone

Although isolable silicon analogs of acetylene have been extensively studied, the silicon analogs of vinylidene, which is a short-lived isomer of acetylene, remain scarce. Herein, we report isolable NHC-coordinated dialkyldisilavinylidene 1 synthesized by the reduction of a tetrabromodisilane featuring a bulky alkyl protecting group. 1 was fully characterized by a combination of multinuclear NMR spectroscopy, high-resolution mass spectrometry,...