© 2016 American Chemical Society. The synthesis of donor-stabilized silacyclobutanone 2 was successfully realized by the reaction of silacyclopropylidene 1 with benzaldehyde in the presence of a Lewis acid catalyst. Of particular interest, silacyclobutanone 2 evolves at room temperature via a retro-[2 + 2]-cycloaddition reaction, leading to an original NHC-stabilized 1-silaketene 4 and cis-stilbene.
Troadec, T., Lopez Reyes, M., Rodriguez, R., Baceiredo, A., Saffon-Merceron, N., Branchadell, V., & Kato, T. (2016). Donor-Stabilized Silacyclobutanone: A Precursor of 1-Silaketene via Retro-[2 + 2]-Cycloaddition Reaction at Room Temperature. Journal of the American Chemical Society, 138(9), 2965-2968. https://doi.org/10.1021/jacs.6b00631