1992
DOI: 10.1002/ange.19921040826
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Bis(trisyl)oxadiboriran

Abstract: Unerwartet wenig reaktiv ist das Oxadiboriran 1, dessen nahezu lineare C‐B‐B‐C‐Kette und dessen sehr kurze B‐B‐Abstand mit den Voraussagen von ab‐initio‐Rechnungen übereinstimmen und nahelegen,I als ein Diboran(2) RBBR mit side ‐ on‐koordiniertem O‐Atom zu verstehen,I entsteht gemäß Gleichung (a) in 54% Gesamtausbeute. MNa/K‐Legierung.

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Cited by 17 publications
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“…Due to slow diffusion of water into the flask, 13 is obviously formed by partial hydrolysis of 12 and subsequent condensation. Several attempts for a direct preparation of 13 from 12 , in particular by treatment with water vapor, by controlled hydrolysis with different water-containing solvents, or by reactions with Me 3 SiOSiMe 3 or Li 2 O, failed. In all cases, 11 B NMR spectroscopy of the reaction mixtures gave evidence for the formation of 13 , which then, however, could not be isolated in the desired purity and yield.…”
Section: Resultsmentioning
confidence: 99%
“…Due to slow diffusion of water into the flask, 13 is obviously formed by partial hydrolysis of 12 and subsequent condensation. Several attempts for a direct preparation of 13 from 12 , in particular by treatment with water vapor, by controlled hydrolysis with different water-containing solvents, or by reactions with Me 3 SiOSiMe 3 or Li 2 O, failed. In all cases, 11 B NMR spectroscopy of the reaction mixtures gave evidence for the formation of 13 , which then, however, could not be isolated in the desired purity and yield.…”
Section: Resultsmentioning
confidence: 99%