The object of this investigation was the preparation of several analogs of Amidone and isoamidone which contained hexamethylenimino and heptamethylenimino radicals as the basic portions of the molecule. The products obtained were 4, 4-diphenyl-6-(1- hexamethylenimino)-3-heptanone (IV), 4, 4-diphenyl-S-methyl-6-(1-hexamethylenimino)-3- hexanone (IX), 4, 4-diphenyl-5-methyl-6-(l-heptamethylenimino)-3-hexanone (XVI) and a ...