868162-01-0Relevant articles and documents
Acid catalyzed cyclization reaction of 3-hydrazono-1,1,1-trifluoro-2-alkanones to 6-trifluoromethyl-3,6-dihydro-2H-[1,3,4]oxadiazines
Kamitori, Yasuhiro,Sekiyama, Tomoko
, p. 2139 - 2150 (2005)
Mechanisms for the acid catalyzed cyclization reaction of 3-dialkylhydrazono-1,1,1-trifluoro-2-alkanones (1) to 6-trifluoromethyl-3,6-dihydro-2H-[1,3,4]oxadiazines (2) are discussed. The results indicate 1,5-sigmatropic shift of hydrogen atom from N-methy