... Ben, 93, 2898 (1960). 4) M. Sekiya, N. Yanaihara, T. Masui: This Bulletin, 9, 945 (1961). 5) Idem: Ibid., 11, 551 (1963). ... Page 5. 444 Vol. 12 (1964) Summary Acyiaminomethylation of aromatic compounds with N,N'—methylenebisamides in acidic media is described. ...