Sodium hydridotrimethylboronate and its ether solvate. Study of hydridotrialkylboronates as reagents for the preparation of beryllium hydrides

Article abstract of DOI:10.1016/0022-328X(87)80062-1

Sodium hydridotrimethylborate is tetrameric in benzene solution and its etherate, (NaBMe3H)4OEt2 probably also retains its solid state cubane arrangement in benzene solution.Reactions of NaBR₃H (R = Me, Et) in a variety of ratios with halo and organoberyllium compounds have been studied.Exchange between Et2Be and NaBEt3H does not occur to any appreciable extent beyond the EtBH stage and reaction of equimolar EtBeCl and NaBEt3H resulted in the formation of EtBeH, isolated as its trimethylamine complex.NaBR3H and BeCl2 in 1/1, 2/1 and 4/1 ratios did not yield pure beryllium hydrides.