15373-31-6Relevant articles and documents
Fluorinative Beckmann fragmentation: Fluorinative α-cleavage of cyclic ketoximes by diethylaminosulfur trifluoride
Kirihara, Masayuki,Niimi, Kanako,Okumura, Maiko,Momose, Takefumi
, p. 220 - 222 (2000)
Diethylaminosulfur trifluoride reacted with cyclic ketoximes bearing substituent(s) that can stabilize a carbocation to cause fluorinative fragmentation, affording fluorinated carbonitrile. Ketoximes lacking such substituents afforded complex mixtures. However, the introduction of a sulfur functionality, which can stabilize a carbocation and can be easily removed from the reaction products, into the ketoxime was effective for producing the fluorinative fragmentation.
Sato,Obase
, p. 1633 (1967)
Synthesis of 2,3,4,5-tetrasubstituted pyrroles from aromatic ketoximes using the TiCl4/Et3N reagent system
Periasamy, Mariappan,Srinivas, Gadthula,Seenivasaperumal, Muthu
, p. 270 - 272 (2007/10/03)
Aryl alkyl ketoximes react with the TiCl4/Et3N reagent to give 2,3,4,5-tetrasubstituted pyrroles in moderate to good yields (55-81%).
Improved procedures for the Beckmann rearrangement: The reaction of ketoxime carbonates with boron trifluoride etherate
Anilkumar,Chandrasekhar, Sosale
, p. 5427 - 5429 (2007/10/03)
A variety of ketoxime ethyl carbonates-easily prepared from the oximes and ethyl chloroformate-undergo the Beckmann rearrangement upon treatment with 1 equivalent of boron trifluoride etherate, in dichloromethane solution at room temperature in excellent yields (generally 75-99%). (C) 2000 Elsevier Science Ltd.