methanol in toluene Ar atmosphere, stirring (60°C, 3 h); concn. (12 Torr), products not separated, identified by (1)H-, (11)B- and (31)P-NMR;

in toluene Ar atmosphere, stirring (60°C, 3 h); solvent removal (14 Torr), B-product isolated by sublimation (30-40°C, 0.001 Torr); byproducts identified by MS and (31)P-NMR;

in toluene byproducts: trimethylamine; Ar atmosphere, stirring (80-90°C, 3.5 h); solvent removal (14 Torr), B-products (1:1 mixt., not separated) isolated by distn. (25-30, 0.001 Torr), identified ny MS, (1)H- and (11)B-NMR; byproducts identified by MS and (31)P-NMR;

in toluene Ar atmosphere, stirring (60°C, 3 h); solvent removal (14 Torr), B-product isolated by sublimation (30-40°C, 0.001 Torr); byproducts identified by MS and (31)P-NMR;

 in  toluene  Ar atmosphere, stirring (room temp., 2 h); filtn., concn. (14 Torr, pptn.), drying (0.001 Torr); elem. anal.;