hydrogenchloride in hydrogenchloride refluxing of Fe-compd. in concd. HCl (20 h, according toP. A. Barret etal., J. Chem. Soc. 1157 (1938));

oxygen in neat (no solvent) suspn. of Fe-complex in 1-chloronaphthalene in the presence of O2; not isolated, identified by UV-spect.;

in further solvent(s) addn. of anhyd. FeCl3 to a soln. of the dinitrile in 1-chloronaphthalene and heating to boiling for 2 h under air; crystals are filtered off, washed with acetone, recrystn. from common solvents impossible; elem. anal.;

pyridine in pyridine extd. with pyridine in a Soxhlet apparatus; pptd. with hexane, soln. in pyridine passed through alumina column, reprecipitated by hexane;

pyridine; water in pyridine Kinetics; byproducts: pyridinium chloride; in water-containing pyridine at 35.0+/-0.1°C;; not isolated; monitored by spectrophotometric and conductometric techniques;;