in dichloromethane equimolar educts reacted under N2; slow evapn. of the solvent; elem. anal.;

triethylamine in tetrahydrofuran byproducts: HN(C2H5)3(1+)*Cl(1-); educt reacted with a slight excess of Et3N (exoterm!) under N2; ppt. filtered, washed with H2O; elem. anal.;