HCl in tetrahydrofuran Kinetics; byproducts: H2; under N2, 25.0°C, 0.1 mol*dm-3 (N(n-Bu)4)(BF4); stopped flow spectrophotometry;

CH3OH in tetrahydrofuran under N2, stirred for several min; filtration of pptn., washed with diethyl ether, dried in vac.; elem. anal.;