Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nikolas Gakis"'
Publikováno v:
Helvetica Chimica Acta. 57:1403-1407
On irradiation in acetonitrile 3-phenyl-2H-azirines of type 1 react with triphenyl vinyl phosphonium bromide to form in approximative 50% yield 2H-indoles of type 4 (Scheme 7). In analogy to other photochemical reactions with 2H-azirines [2] [3] it i
Autor:
M. Märky, Heinz Heimgartner, Nikolas Gakis, Willi E. Oberhänsli, Hans-Jürgen Hansen, Hans Schmid
Publikováno v:
Helvetica Chimica Acta. 59:2149-2167
Photochemical Synthesis of 4-Phenyl-3-oxazolin-5-ones and their Thermal Dimerization. Irradiation of 3-phenyl-2H-azirines affords reactive benzonitrilemethylide intermediates, which can be trapped by carbon dioxide to yield 4-phenyl-3-oxazolin-5-ones
Publikováno v:
Helvetica Chimica Acta. 58:748-760
The irradiation of the 3-phenyl-2H-azirines 1a–c in the presence of diethyl benzoylphosphonate (8) in cyclonexane solution, using a mercury high pressure lamp (pyrex filter), yields the diethyl (4, 5-diphenyl-3-oxazolin-5-yl)-phosphonates 9a–c (S
Publikováno v:
Helvetica Chimica Acta. 55:748-752
Irradiation of 3-phenyl-2H-azirine (2) in benzene solution with a high-pressure mercury lamp yields 4,5-diphenyl-1,3-diazabicyclo[3,1,0]hex-3-ene (4) and not 3-phenylimino-4-phenyl-1-azabicyclo[2,1,0]pentane (1), as had been reported previously by ot
Publikováno v:
Helvetica Chimica Acta. 55:916-918
Irradiation of 2-methyl- (1c) and 2,2-dimethyl-3-phenyl-2H-azirine (1d) in benzene solution in the presence of carbon dioxide yields 2-methyl-4-phenyl- (3c) and 2,2-dimethyl-4-phenyl-3-oxazolin-5-one (3d), respectively. Similar cycloadducts are obser
Publikováno v:
Chemischer Informationsdienst. 7
Publikováno v:
Chemischer Informationsdienst. 6
Publikováno v:
Chemischer Informationsdienst. 5
Publikováno v:
Chemischer Informationsdienst. 8
Durch Bestrahlung des Azirins (I) mit einer Quecksilber-Hochdrucklampe in Gegenwart aquimolarer Mengen des Phosphoniumbromids (II) in Acetonitril entsteht in 20%iger Ausbeute 2,2,3-Trimethyl-5-phenyl-2H-pyrrol (III).
Publikováno v:
Chemischer Informationsdienst. 3