Photochemische Cycloadditionen von 3-Phenyl-2H-azirinen mit Triphenyl-vinylphosphoniumbromid. 36. Mitteilung über Photoreaktionen

Autor: Hans Schmid, Heinz Heimgartner, Nikolas Gakis
Rok vydání: 1974
Předmět:
Zdroj: Helvetica Chimica Acta. 57:1403-1407
ISSN: 0018-019X
Popis: 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 is assumed that the photochemically generated dipoles 2 react with the triphenyl vinyl phosphonium salt (Scheme 1). The conversion of 1 to 4 represents a new synthesis for 2H-pyrroles.
Databáze: OpenAIRE