Creatine and creatinine have recently2 become much more available for synthetic work. As one of us3 has shown the suitability of the condensation products of glycocyamidines with benzaldehyde as tools in the study of the methylation of glycocyamidine, it seemed desirable to attempt to extend this method to creatinine derivatives. It also seemed likely that the aldehyde condensation products of creatinine might provide a convenient means of ...
