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An Isolable Bis(Silanone-Borane) Adduct.


ABSTRACT: The reaction of bis(silylenyl)-substituted ferrocene 1 with two molar equivalents of BPh3 yields the corresponding bis(silylene-borane) Lewis adduct 2. The latter is capable to activate CO2 to furnish the borane-stabilized bis(silanone) 3 through mono-oxygenation of the dative SiII ?B silicon centers under release of CO. Removal of BPh3 from 3 with PMe3 affords the corresponding 1,3,2,4-cyclodisiloxane and the Me3 P-BPh3 adduct. All isolated new compounds were characterized and their molecular structures were determined by single-crystal X-ray diffraction analyses.

SUBMITTER: Luecke MP 

PROVIDER: S-EPMC7187440 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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An Isolable Bis(Silanone-Borane) Adduct.

Luecke Marcel-Philip MP   Pens Elron E   Yao Shenglai S   Driess Matthias M  

Chemistry (Weinheim an der Bergstrasse, Germany) 20200311 20


The reaction of bis(silylenyl)-substituted ferrocene 1 with two molar equivalents of BPh<sub>3</sub> yields the corresponding bis(silylene-borane) Lewis adduct 2. The latter is capable to activate CO<sub>2</sub> to furnish the borane-stabilized bis(silanone) 3 through mono-oxygenation of the dative Si<sup>II</sup> →B silicon centers under release of CO. Removal of BPh<sub>3</sub> from 3 with PMe<sub>3</sub> affords the corresponding 1,3,2,4-cyclodisiloxane and the Me<sub>3</sub> P-BPh<sub>3</sub  ...[more]

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