Reaction of aromatic N-oxides with dipolarophiles. XVII. Cycloaddition behavior of allenes toward pyridine N-oxides and formation of azetidine-type cycloadduct was written by Matsuoka, Toshikazu;Hasegawa, Tomoaki;Harano, Kazunobu;Hisano, Takuzo. And the article was included in Heterocycles in 1992.Recommanded Product: 3,5-Dimethylpyridine 1-oxide This article mentions the following:
Reaction of 3,5-dimethylpyridine N-oxide with PhSO2CH:C:CH2 in CHCl3 at room temperature gave a mixture of the 1:1 [1,5]-sigmatropic rearrangement product I and 1:2 azetidine-type cycloadduct II. The structure of II was determined by single crystal x-ray anal. The reaction behavior and the regioselectivity are discussed in terms of the frontier MO considerations. In the experiment, the researchers used many compounds, for example, 3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8Recommanded Product: 3,5-Dimethylpyridine 1-oxide).
3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Recommanded Product: 3,5-Dimethylpyridine 1-oxide