Coordination of a stibine oxide to a Lewis acidic stiborane at the upper rim of the biphenylene backbone

Our interest in bifunctional antimony Lewis acids has led us to synthesize 1,8-bis(diphenylstibino)biphenylene (2) by reaction of 1,8-bis(trimethylstannyl)biphenylene (1) with Ph2SbCl. Oxidation of this distibine with o-chloranil, followed by work-up in air afforded a biphenylene derivative (3) feat...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2018, Vol.47 (35), p.12075-12078
Main Authors: Chen, Chang-Hong, Gabbaï, François P
Format: Article
Language:English
Subjects:
Acidic oxides
Antimony
Chemical synthesis
Oxidation
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Summary:Our interest in bifunctional antimony Lewis acids has led us to synthesize 1,8-bis(diphenylstibino)biphenylene (2) by reaction of 1,8-bis(trimethylstannyl)biphenylene (1) with Ph2SbCl. Oxidation of this distibine with o-chloranil, followed by work-up in air afforded a biphenylene derivative (3) featuring a triarylstibine oxide connected via an Sb[double bond, length as m-dash]O → Sb bridge to the neighbouring antimony(v) center.
ISSN:1477-9226
1477-9234
DOI:10.1039/c8dt02872a