Summary
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1.
When arenechloroboronic esters are treated with organornagnesium compounds, diarylborinic esters are formed. In this way some unsymmetrical diarylborinic esters were obtained.
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2.
By the action of phosphorus pentachloride on unsymmetrical diarylborinic esters, unsymmetrical diarylchloroborines were prepared for the first time.
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3.
Diarylchloroborines react with organomagnesiurn compounds with formation of triarylborines. By this method triarylborines having three different aryl groups were prepared for the first time.
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4.
By the action of 1-naphthyllithiurn on unsymmetrical triarylborines, lithium tetraarylborates containing an asymmetric boron atom were obtained.
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Mikhailov, B.M., Kostroma, T.V. & Fedotov, N.S. Organoboron compounds Communication 15. organoboron compounds having an asymmetric boron atom. Russ Chem Bull 6, 603–610 (1957). https://doi.org/10.1007/BF01169277
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DOI: https://doi.org/10.1007/BF01169277