151598-63-9Relevant articles and documents
The Elimination of an Alkoxy Group in the Photo-Graebe-Ullmann Conversion of 1-(2,5-Dialkoxyphenyl)triazolopyridines into Carbolines, and the Preparation of α-, γ- and δ-Carboline Quinones
Mehta, Lina K.,Parrick, John,Payne, Fereshteh
, p. 1261 - 1268 (2007/10/02)
Photochemical decomposition of 1-(2,5-dialkoxyphenyl)triazolopyridines 7a, 21 and 33 resulted in elimination of an alkoxy group to give the alkoxycarbolines 9a and 35 in addition to the expected dialkoxycarbolines.The carbolines having either a methoxy and an isopropoxy substituent 22, 34a and 34b or two methoxy groups 41 were oxidised with ceric ammonium nitrate to yield the α-, γ- or δ-carboline p-quinones.