Bernhauer; Irrgang Justus Liebigs Annalen der Chemie, 1936 , vol. 525, p. 43,63 Full Text Show Details I.G.Farbenind. Patent: DE698091 , 1936 ; DRP/DRBP Org.Chem. Full Text Show Details Winthrop Chem.Co. Patent: US2175843 , 1937 ; Full Text Show Details Bernhauer; Woldan Biochemische Zeitschrift, 1932 , vol. 249, p. 207 Full Text Show Details Kuhn; Grundmann Chemische Berichte, 1937 , vol. 70, p. 1325 Full Text Show Details I.G.Farbenind. Patent: DE725275 , 1936 ; Full Text Show Details du Mont; Fleischhauer Chemische Berichte, 1938 , vol. 71, p. 1958 Full Text Show Details Gen.Aniline and Film Corp. Patent: US2230591 , 1938 ; Full Text Show Details Fischer; Hultzsch; Flaig Chemische Berichte, 1937 , vol. 70, p. 372