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Flash Vacuum Thermolysis of 1-Azabicyclo[1.1.0]butanes. Photoelectron Spectrum of 3-Phenyl-2-azabuta-1,3-diene



The reaction behaviour of 1-azabicyclo[1.1.0]butanes under flash vacuum thermolysis (FVT) conditions was studied. It has been found that the thermal rearrangement of title compounds produces unstable 2-aza-1,3-dienes. The formation of these products was established by reduction, by Diels−Alder reactions and by UV photoelectron spectroscopy. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)