参考文献

Mannich; Wieder Chemische Berichte, 1932 , vol. 65, p. 385,389 Full Text Show Details Mannich Patent: HU101428 ; Full Text Show Details Mannich Patent: US1824676 , 1930 ; Full Text Show Details Lesser,B. Diss. S. 12 Full Text Show Details Mannich Patent: DE542253 , 1928 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 18, p. 2986,2987 Full Text Show Details Mannich Patent: DE544692 , 1930 ;