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Paper | Regular issue | Vol 26, No. 9, 1987, pp.2443-2447
Published online, 1st January, 1970
DOI: 10.3987/R-1987-09-2443
Synthesis of Quino[2,3-b][1,5]benzoxazepines: A Novel Tetracyclic Ring System

Giampiero Pagani Zeccini, Ines Torrini, and Mario Paglialunga Paradisi

*Dipartimento Farmacochimico, Tossicologico e Biologico, Università degli Studi di Palermo , Via Archirafi 32, 90123 Palermo, Italy


The one-pot synthesis of quino[2,3-b-][1,5]benzoxazepines 3a-c from 2-chloroquinoline-3-carbaldehydes 1a-c and ortho aminophenol is described. Reduction of 3a-c with lithium aluminum hydride afforded 11,12-dihydroquino-[2,3-b][1,5]benzoxazepines 4a-c in high yields.