76707-75-0Relevant academic research and scientific papers
Thermal Rearrangements of Cyclic Amine Ylides. IV. Rearrangement of β,γ-Unsaturated 1-Alkylpiperidine N-Oxides: Formation of 1,2-Oxazepine Derivatives
Sashida, Haruki,Tsuchiya, Takashi
, p. 4117 - 4123 (2007/10/02)
The thermolysis of 1-methyl-2-vinylpiperidine N-oxide (13) resulted in Meisenheimer rearrangement to give the hexahydro-1,2-oxazepine (23) and no -sigmatropic rearrangement product (24).Similarly, the 1-methyl-1,2,5,6-tetrahydropyridine N-oxide
THERMAL REARRANGEMENT OF 2-VINYLPIPERIDINE AND 6-VINYL-1,2,5,6-TETRAHYDROPYRIDINE N-OXIDES: FORMATION OF 1,2-OXAZEPINE DERIVATIVES
Tsuchiya, Takashi,Sashida, Haruki
, p. 1925 - 1928 (2007/10/02)
The thermolysis of both 2-vinyl piperidine N-oxides (9 and 12) and 1,2,5,6-tetrahydropyridine N-oxides (15) resulted in the Meisenheimer-type rearrangement to give the corresponding 1,2-oxazepine derivatives (10, 13, 16, and 17).In the thermolysis, the involvement of 2,3)-sigmatropic rearrangement could not be observed in contrast to the cases of the analogous cyclic amine N-imides (3, 5, and 7).
