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Synthesis of Imidazolines and Imidazolidines by the Reaction of Aziridinium Tetrafluoroborate with Nitriles and Benzylideneaniline

✍ Scribed by Prof. Dr. E. Pfeil; Dipl.-Chem. U. Harder


Publisher
John Wiley and Sons
Year
1965
Tongue
English
Weight
204 KB
Volume
4
Category
Article
ISSN
0044-8249

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However, many side reactions occur, in contrast to the cyclization of nitrosouracils. When, for instance, a solution of 4-methylamino-5-p-nitrobenzylideneaminouracil(Ia) in nitrobenzene is refluxed for only a short time (2-5 min), fractional crystallization of the product leads to a 40 % yield of 7-