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4.4.21.12 Method 12: Preparation and Reaction of Stable Cyclic Bis(amino)silylenes

DOI: 10.1055/sos-SD-004-00484

Tamao, K.; Kawachi, A.Science of Synthesis, (20024470.

Several kinds of bis(amino)silylenes having cyclic skeletons can be prepared by reduction of the corresponding bis(amino)dichlorosilanes with potassium (Scheme 29).[‌52‌,‌53‌] These silylenes are thermally stable and may be isolated under an inert gas atmosphere. Bis(diisopropylamino)silylene is generated photochemically in hexane at room temperature.[‌54‌,‌55‌]

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Reaction of the bis(amino)silylene 67 with trityl azide results in the rapid evolution of nitrogen and the clean formation of a silanimine 68, which is stabilized by a tetrahydrofuran molecule coordinated to silicon (Scheme 29).[‌56‌]

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References


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