Synthesis of 9-arylamino- and (Z)-9-arylimino-9H-pyrrolo[1,2-a]indoles by reactions of 2-(pyrrol-1-yl)benzaldehydes with aryl amines |
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| Authors: | Kazuhiro Kobayashi Yasutoshi Himei Shuhei Fukamachi Miyuki Tanmatsu Osamu Morikawa Hisatoshi Konishi |
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| Institution: | Department of Materials Science, Faculty of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan |
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| Abstract: | Heating mixtures of 2-(pyrrol-1-yl)benzaldehydes and aryl amines under argon afforded 9-arylamino-9H-pyrrolo1,2-a]indoles, via cyclization of the resulting 2-(pyrrol-1-yl)benzaldimine intermediates. Heating in the presence of oxygen afforded (Z)-9-arylimino-9H-pyrrolo1,2-a]indoles, which were successfully hydrolyzed with hydrochloric acid to give pyrrolo1,2-a]indol-9-ones. |
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| Keywords: | 9-Arylamino-9H-pyrrolo[1 2-a]indole 9-Arylimino-9H-pyrrolo[1 2-a]indole Pyrrolo[1 2-a]indol-9-one 2-(Pyrrol-1-yl)benzaldehyde 2-(Pyrrol-1-yl)benzaldimine |
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