Photochemistry of 2-(1-Naphthyl)-2<i>H</i>-azirines in Matrixes and in Solutions: Wavelength-Dependent C−C and C−N Bond Cleavage of the Azirine Ring
作者:Hiroshi Inui、Shigeru Murata
DOI:10.1021/ja040109x
日期:2005.3.1
The photochemistry of 3-methyl-2-(1-naphthyl)-2H-azirine (1a) was investigated by the direct observation of reactive intermediates in matrixes at 10 K and by the characterization of reaction products in solutions. As already reported, the photolysis of the azirine 1a with the short-wavelength light (>300 nm) caused the C-C bond cleavage of the 2H-azirine ring to produce the nitrile ylide 2. However
Control of C–C and C–N Bond Cleavage of 2<i>H</i>-Azirine by Means of the Excitation Wavelength: Studies in Matrices and in Solutions
作者:Hiroshi Inui、Shigeru Murata
DOI:10.1246/cl.2001.832
日期:2001.8
The remarkable wavelengh-dependent photoreactions of 3-methyl-2-(1-naphthyl)-2H-azirine (1) were observed in matrices at 10 K and in solutions at room temperature. Irradiation of 1 with the long-wavelength light (366 nm) exclusively gave the products formed by the cleavage of the C–N bond of the 2H-azirine ring, while the products derived from the C–C bond cleavage were predominantly obtained in the irradiation with the short-wavelength irradiation (>300 nm).
Photochemical generation of acetonitrile oxide via the C–N bond cleavage of 3-methyl-2-(4-nitrophenyl)-2H-azirine
作者:Hiroshi Inui、Shigeru Murata
DOI:10.1039/b102384p
日期:——
Acetonitrile oxide (2) is produced by the irradiation of the title azirine 1 in the presence of O2 in fluid solutions and in low-temperaturematrices through the capture of the biradical 7 with O2, which is generated by the photochemical C–N bond cleavage of the azirine ring.