Mechanochemical dehydrocoupling of dimethylamine borane and hydrogenation reactions using Wilkinson's catalyst†
Christian Schumacher,Deborah E. Crawford,Branimir Raguž,Robert Glaum,Stuart L. James,Carsten Bolm,José G. Hernández
Chemical Communications Pub Date : 07/05/2018 00:00:00 , DOI:10.1039/C8CC04487B
Abstract

Mechanochemistry enabled the selective synthesis of the recherché orange polymorph of Wilkinson's catalyst [RhCl(PPh3)3]. The mechanochemically prepared Rh-complex catalysed the solvent-free dehydrogenation of Me2NH·BH3 in a ball mill. The in situ-generated hydrogen (H2) could be utilised for Rh-catalysed hydrogenation reactions by ball milling.

Graphical abstract: Mechanochemical dehydrocoupling of dimethylamine borane and hydrogenation reactions using Wilkinson's catalyst