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Anellierte Thiopyrone, 1. Mitt. Thiopyrano[3,2-b]indol-4(5H)-one, Thiopyrano[2,3-b]indol-4(9H)-one als Nebenprodukte

✍ Scribed by Klaus Görlitzer; Detlef Hölscher


Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
338 KB
Volume
319
Category
Article
ISSN
0365-6233

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✦ Synopsis


Eingegangen am 3. Dezember 1984 Die 3-(3-Indolyl-thio)-acryísäuren 3 cyclisieren mit Polyphosphorsäure (PPA) zu den isomeren Titelverbindungen 4 und 5, die als Sulfone, Thione und Oxonole charakterisiert werden, Fused Thiopyrones, I: Thiop~~o[3,2-b]indol-4(5H)-ones, Thiopyrano[2,3-b]i(9~-ones as Byproducts The 3-(3-indolylthio)acrylic acids 3 cyclize with polyphosphoric acid (PPA) to yield the isomeric title compounds 4 and 5, which are characterized by their sulfones, thiones and oxonol dyes. ** Herrn Prof. Dr. F. Eiden mit den besten Wiinschen zum 60. Geburtstag gewidmet.


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