The conditions for the condensation of 1,2-nonsubstituted diaziridines with CH2O and NH3 (or AlkNH2) to the corresponding 1,3,5-triazabicyclo[3.1.0]hexanes have been found and 3-phenylsulfonyl, 3-trimethylsilyl, 3-nitroso, and 3-nitro derivatives of the latter have been obtained.

The conditions necessary for the condensation of 1,2-unsubstituted diaziridines 1 with CH2O and NH3, and also with CH2O and AlkNH2, into the corresponding 1,3,5-triazabicyclo[3.1.0]hexanes have been found; 1,3,6-triazabicyclo[3.1.0]hexanes, the primary representatives of the new heterocyclic system, were obtained by intermolecular alpha-aminomethylation of 1 and 1-alkyldiaziridines 2.

AbstractBei Einwirkung von primären Aminen oder flüss.

AbstractDistickstofftetroxid (II) bildet mit Triethylamin (I) oder Pyridin (IV) unbeständige Komplexe (III) oder (V), die mit sek. Aminen (VI) die Nitroso‐Verbindungen (VII) ergeben.

A method was proposed for the N-nitrosation of secondary amines using N2O4 complexes in combination with tertiary amines or pyridine.

AbstractDurch Umsetzung von 1‐Methyl‐3,3‐pentamethylen‐diaziridin (I) mit starken Basen wie Dimethylamin (IIIa), Diäthylamin (IIIb) oder Piperidin (IIIc) und Formalin (II) bei 100°C erhält man 1‐Methyl‐2‐(N‐dialkylamino‐methyl)‐ diaziridine (IV) (Ausbeute (IVa): 58%, (IVb):82%, (IVc):67%).

It was shown that the N-aminomethyl group be inserted into 1,3-disubstituted and 1,3,3-trisubstituted diaziridines (pKa 5.4-4.1) by treatment with formaldehyde and amines, the pKa of which exceeds 8.

The basicity constants for seven diaziridines have been found by two methods.