Bora-aromatic systems. Part 10. Aromatic stabilization of the triarylborirene ring system by tricoordinate boron and facile ring-opening with tetracoordinate boron

…, B Shafii, JD Odom, AL Rheingold

Index: Eisch, John J.; Shafii, Babak; Odom, Jerome D.; Rheingold, Arnold L. Journal of the American Chemical Society, 1990 , vol. 112, # 5 p. 1847 - 1853

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Citation Number: 108

Abstract

Abstract: To remove uncertainties in the apparent C= C and BC bond lengths of the borirene ring, as previously estimated from an X-ray crystallographic analysis of trimesitylborirene, the unsymmetrically substituted 2-(2, 6-dimethylphenyI)-1, 3-dimesitylborirene was prepared by the photorearrangement of ((2, 6-dimethylphenyl) ethynyl) dimesitylborane. With such an unsymmetrical borirene there was no disorder in the identity of the ring atoms, and all ...

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