Reactions of B 2 (o-tolyl) 4 with Boranes: Assembly of the Pentaborane(9), HB[B(o-tolyl)(μ-H)] 4 .

Autor: Bamford KL; Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada., Qu ZW; Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany., Stephan DW; Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2021 Apr 06; Vol. 60 (15), pp. 8532-8536. Date of Electronic Publication: 2021 Mar 04.
DOI: 10.1002/anie.202101054
Abstrakt: Reactions of the diborane(4) B 2 (o-tolyl) 4 and monohydridoboranes are shown to give B(o-tolyl) 3 and (o-tolyl)BR 2 (R 2 =(C 8 H 14 ) 3, cat 4, pin 5, (C 6 F 5 ) 2 6) as the major products. The corresponding reaction with BH 3 -sources gives complex mixtures, resulting from hydride/aryl exchange, dimerization and borane elimination. This led to the isolation of the first tetra-substituted pentaborane(9) HB[B(o-tolyl)(μ-H)] 4 8. The reaction pathways are probed experimentally and by computations.
(© 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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