1994
DOI: 10.1002/ardp.19943270407
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Synthese von 5H‐Pyrido[2,3‐c]‐2‐benzazepinen

Abstract: Die Titelverbindungen lassen sich auf zwei verschiedenen Wegen herstellen: Durch RingschluBreaktionen des 2-Benzazepin-enaminonitrils 1 mit den C2-Bausteinen 2 , 7 und 8 sind die Tricyclen 6 , 9 und 10 zugtinglich. -Beim zweiten Weg werden die 2-Amino-3-benzoylpyridhe 16&b zu den 2-Amino-3-benzylpyridinen 18a.b reduziert. Benzoylierung von 18a.b fiihrt zu den Dibenmylverbindungen 20 und 21. die sich in die Monobenzoylverbiidungen 22 und 23 Uberfiihren lassen. Ringschlul3 nach Art der Bischfer-Napieralski-Reakt… Show more

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Cited by 5 publications
(2 citation statements)
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“…With the exception of 6e all used ketene N,Oacetals 6 were prepared by the Pinner methodology. 3,[9][10][11][12][13] When tetrazine 5 was treated at 25°C in dichloromethane with ketene N,O-acetal 6a, the deep magenta color of 5 disappeared and an evolution of gas started. After 20 minutes, the reaction was complete giving a yellow-orange…”
mentioning
confidence: 99%
“…With the exception of 6e all used ketene N,Oacetals 6 were prepared by the Pinner methodology. 3,[9][10][11][12][13] When tetrazine 5 was treated at 25°C in dichloromethane with ketene N,O-acetal 6a, the deep magenta color of 5 disappeared and an evolution of gas started. After 20 minutes, the reaction was complete giving a yellow-orange…”
mentioning
confidence: 99%
“…= 8. lH, 8.18 (s; lH, 3H,[4][5][6][7][8][9][10][11] 5-H, 6-Hj.-MS (70 eVj: m h (rel. 1nt.j = 179 (8.5; M+.…”
mentioning
confidence: 99%