参考文献

I.G.Farbenind. Patent: DE698091 , 1936 ; DRP/DRBP Org.Chem. Full Text Show Details Kuhn; Grundmann Chemische Berichte, 1937 , vol. 70, p. 1325 Full Text Show Details I.G.Farbenind. Patent: DE725275 , 1936 ;