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5,5’-Biindole

1
Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, México
2
Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, México
3
Facultad de Medicina, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, México
*
Author to whom correspondence should be addressed.
Molbank 2006, 2006(2), M474; https://doi.org/10.3390/M474
Received: 30 January 2006 / Accepted: 9 March 2006 / Published: 10 March 2006
Synthesis of 5,5’-biindole was carried out by the Madelung indole reaction. Under strong basic conditions and high temperatures (350 ºC), N,N’-bis-formyl-o-tolidine underwent cyclization to produce high amounts of the dimeric indole. Full and unambiguous assignments of all 1H- and 13C-NMR resonances of indole and 5,5’-biindole in DMSO-d6 are also reported. View Full-Text
Keywords: Indoloquinolizine; Antitumor activity; Teuber’s reaction; Indole synthesis; 1H-NMR; 13C-NMR Indoloquinolizine; Antitumor activity; Teuber’s reaction; Indole synthesis; 1H-NMR; 13C-NMR
MDPI and ACS Style

Quintanilla-Licea, R.; Colunga-Valladares, J.F.; Caballero-Quintero, A.; Waksman, N.; Gomez-Flores, R.; Rodríguez-Padilla, C.; Tamez-Guerra, R. 5,5’-Biindole. Molbank 2006, 2006, M474.

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