ja072425s_si_002.cif (28.19 kB)

An Isolable Silanoic Ester by Oxygenation of a Stable Silylene

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posted on 13.06.2007, 00:00 by Shenglai Yao, Yun Xiong, Markus Brym, Matthias Driess
The first silicon analogue of a carbonic ester, compound 2, and the novel cyclodisiloxane 4 have been synthesized by remarkably clean mono- and dioxygenation reactions of the stable siloxysilylene 1 with N2O (CO2) and O2, respectively. Ester 2 represents a unique donor-supported SiO complex with an intriguing thermal stability up to 200 °C. The addition of MeOH at the SiO bond in 2 furnishes the corresponding adduct 3.