
TY  - JOUR
A1  - Teitei, T 
T1  - 7-Phenylindolo[3,2,1-<I>de</I>]phenanthridin-13-one, the Vilsmeier-Haack reaction product of 1,4-diphenylcarbazole
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1970
VL  - 23
IS  - 1
SP  - 185
EP  - 191
KW  - 
UR  - https://doi.org/10.1071/CH9700185 
N2  - Formylation of 1,4-diphenylcarbazole (la) under the conditions of the Vilsmeier-Haack reaction gave 7-phenylindolo[3,2,1-de]phenanthridin-13-one (2a), which brominated to give 6-bromo-7-phenylindolo[3,2,l-de]phenanthridin-13-one (2b). Treatment of the compounds (2a) and (2b) with sodium hydride and alkyl iodides yields l-(o-lkoxycarbonylphenyl)-9-alkyl-4-phenylcarbazoles (3a) and (3b) and the 3-bromo analogue (3c), respectively. The parent compound, indolo[3,2,1-de]- phenanthridin-13-one (2c), under the same reaction conditions also gave the ring-opened compound 1-(0-methoxycarbonylphenyl)-9-methylcarbazole (3d). 
ER  -

