✦ LIBER ✦

Pyran-Derivate, 96. [1]Benzopyrano[4,3-b]pyrrol- und -pyridin-Derivate

✍ Scribed by Eiden, Fritz ;Baumann, Egmont ;Lotter, Hermann

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 821 KB
Volume: 1983
Category: Article
ISSN: 0947-3440
DOI: 10.1002/jlac.198319830202

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Die durch Esterkondensation aus Fünf‐ oder Sechsring‐Lactamen 1 und Salicylsäureester 2 dar stellbaren 2‐Acyl‐4‐butan‐ und ‐5‐pentanlactame 3 lassen sich zu den gesättigten [1]Benzopyrano[4,3]‐b[pyrrolonen und ‐pyridinonen] 14 bzw. 23 cyclisieren. Zwischenprodukte (12 bzw. 24) sind darstellbar, Dehydrierung führt zu den [1]Benzopyrano[4,3‐b]pyrrolonen und ‐pyridinonen 16 bzw. 27.

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