1778 FG BORDWELL, AVIS B. COLBERT AND BARRE ALAN ... Experimental' N-(~-Ribityl)-3 ,4-dimethylaniliae (111). Method A. From 4-Nitro-o-xylene (I).-A mixture of 12 g. of D- ribonolactone, 10 g. of 4-nitro-o-xylene, and 3 cc. of iV potassium hyclroxide in 100 cc. of ethanol was hydro- genated at 60" and 100 atmospheres pressure with 1 g. of Adams platinum oxide catalyst. After twenty-four hours 30 cc. of ethanol was added and the mixture warmed to ...
