title: An Aluminum Dihydride Working as a Catalyst in Hydroboration and Dehydrocoupling.
abstract: The well-defined aluminum dihydride LAlH2 (L = HC(CMeNAr)2, Ar = 2,6-Et2C6H3) (1) operates in catalysis like a transition metal complex. The catalytic activity of 1 for hydroboration of terminal alkynes was investigated. Furthermore, catalyst 1 effectively initiated the dehydrocoupling of boranes with amines, thiols, and phenols, respectively, to form compounds with B-E bonds (E = N, S, O) under elimination of H2. Quantum mechanical calculations indicate that hydroboration and dehydrocoupling reactions occur via three consecutive cycloaddition reactions involving the activation of the X-H (X = Al, B, C, and O) σ-bonds.
authors: School of Chemical Engineering and Environment, Beijing Institute of Technology , 100081 Beijing, China.
authors: Zhi
authors: Z
authors: Yang
authors: School of Chemical Engineering and Environment, Beijing Institute of Technology , 100081 Beijing, China.
authors: Mingdong
authors: M
authors: Zhong
authors: School of Chemical Engineering and Environment, Beijing Institute of Technology , 100081 Beijing, China.
authors: Xiaoli
authors: X
authors: Ma
authors: Department of Chemistry, National Institute of Technology Calicut , NIT Campus P.O., Kozhikhode 673 601, Kerala, India.
authors: Karikkeeriyil
authors: K
authors: Nijesh
authors: Department of Chemistry, National Institute of Technology Calicut , NIT Campus P.O., Kozhikhode 673 601, Kerala, India.
authors: Susmita
authors: S
authors: De
authors: Department of Chemistry, National Institute of Technology Calicut , NIT Campus P.O., Kozhikhode 673 601, Kerala, India.
authors: Pattiyil
authors: P
authors: Parameswaran
authors: Institut für Anorganische Chemie der Georg-August-Universität Göttingen , Tammannstrasse 4, D-37077 Göttingen, Germany.
authors: Herbert W
authors: HW
authors: Roesky