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.
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Yao et al. (2007) studied this question.
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