in deuterated toluene Me2AsH is condensed onto the frozen soln. of B-compd. (-196°C) in a NMR-tube, sealing of the tube, agitating at -95°C, reaction is studied from -80 to -10°C; monitored by NMR-spectroscopy;

in deuterated toluene Kinetics; byproducts: Me2AsH, Me2AsAsMe2, (MeAs)5; -10°C, 40 h; not isolated, reaction followed by (11)B- and (13)C-NMR spectroscopy;

in deuterated toluene Me2AsH is condensed onto the frozen soln. of B-compd. (-196°C) in a NMR-tube, sealing of the tube, agitating at -95°C, reaction is studied from -80 to -10°C; monitored by NMR-spectroscopy;