byproducts: NaCl; solvent: dry glyme or diglyme; diammonium addn. to soln. of B-compd., stirring (5 h, protection from atmospheric moisture), NaCl ppt. filtrationoff; filtrate evapn. (vacuum), diammonium-containing product extraction from residue (diethyl ether), diamine-containing product obtained from solid residue after recrystn. from acetonitrile; elem. anal.;

in not given

in not given

in neat (no solvent) equilibrium;;

in neat (no solvent) equilibrium;;