Reaction of trans-1,2-di-t-butyl-1,2-dimesityldisilaethylene in solution with dioxygen at –78 °C produces the disiloxirane (7) and a compound believed to be the 1,2-disiladioxetane (8a); the latter compound rearranges quantitatively to the known 1,3-cyclodisiloxane (5) above 0 °C.
M. J. Michalczyk, R. West and J. Michl, J. Chem. Soc., Chem. Commun., 1984, 1525 DOI: 10.1039/C39840001525
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