0000000001174545
AUTHOR
Eugenia Gonzalez-rosende
Thermolysis of 3-(carbazol-3-yl)-2-azidopropenoates
Abstract Thermal cyclisation of 2-azido-3-(carbazol-3-yl)propenoic esters produces the 1,6-dihydropyrrolo[3,2- c ]carbazole and not the 1,9-dihydropyrrolo[2,3- b ]carbazole whereas, in the case of the 4-methylcarbazolyl derivative, the 1,9-dihydropyrrolo[2,3- b ]-carbazole is formed in preference to the alternative pyrido[4,3- c ]carbazole.
Pyrrole Studies. Part 40.1Synthesis of 2- and 3-Substitoted 1-Methylindoles from Vinylpyrroles.
Abstract 4-Substituted-2-vinylpyrroles are more reactive than 2-substituted-4-vinylpyrroles in their reaction with DMAD to yield, respectively, 6/7- and 4,5-dihydroindoles, which are readily dehydrogenated to give indoles possessing electron-withdrawing substitutents at the 3- and 2-positions.