title: Assessing the Brønsted basicity of diaminoboryl anions: reactivity toward methylated benzenes and dihydrogen.
abstract: Treatment of toluene or p-xylene with diaminoboryllithium results in consecutive reactions, involving boryl-anion-mediated deprotonation at the benzylic position followed by nucleophilic substitution at the boron center, producing benzylborane species and LiH. Diaminoboryllithium also cleaves H2 heterolytically affording diaminohydroborane and LiH, while the reaction of lithium diaminoboryl(bromo)cuprate with H2 takes place accompanied by reduction of Cu(I) to give diaminohydroborane, LiH, and Cu(0).
authors.affiliation: Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen (Germany).
authors.forename: Nicole
authors.initials: N
authors.lastname: Dettenrieder
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Aramaki
authors.forename: Benjamin M
authors.initials: BM
authors.lastname: Wolf
authors.forename: Cäcilia
authors.initials: C
authors.lastname: Maichle-Mössmer
authors.forename: Xiaoxi
authors.initials: X
authors.lastname: Zhao
authors.forename: Makoto
authors.initials: M
authors.lastname: Yamashita
authors.forename: Kyoko
authors.initials: K
authors.lastname: Nozaki
authors.forename: Reiner
authors.initials: R
authors.lastname: Anwander
keywords: basicity; boryllithium; diaminoboryl anions; hydrogen; methylated benzenes