N-functionalized amino-aluminium and -boron complexes: intramolecular aromatic nitrogen-assisted formation of aminoboranes
Abstract
Reaction of 6-methyl-2-bis(trimethylsilyl)pyridine or 8-bis(trimethylsilyl)aminoquinoline with BCl3 in hexane results in facile elimination of ClSiMe3 affording an aminodichloroborane, (2) or (5a), then a novel aminobis(dichloroborane), (3) or (6); compounds (3) and (5b), prepared from a lithium reagent and AlCl3, have been structurally authenticated using X-ray diffraction data.