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Boron Analogue of Vinylidene Dication Supported by Phosphines
W. Lu, Y. Li, , R. Kinjo
Published in American Chemical Society
PMID: 29338203
Volume: 140
Issue: 4
Pages: 1255 - 1258
In the presence of a catalytic amount of heavier tetrylene dichlorides, an allenic diborene 1 undergoes a 1,3-hydrogen shift to afford a terminal diborene 2, which can be deemed a boron analogue of vinylidene dication stabilized by Lewis bases. X-ray diffraction analysis and computational studies revealed that 2 involves a conjugative interaction between the C=C and B=B π-orbitals. The reaction of 2 with ZnBr2 afforded the corresponding isolable complex 3, in which two boon centers coordinate to the Zn atom asymmetrically. © 2018 American Chemical Society.
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Published in American Chemical Society
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