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Communication | Regular issue | Vol 34, No. 4, 1992, pp.685-688
Published online, 1st January, 1970
DOI: 10.3987/COM-92-5986
Thermolysis of 3,6-Diaza- and 6-Aza-3-oxabenzo[g]tricyclo[3.3.0.02,4]octanes: Formation of Novel 4,1-Benzoxazocines

Jyoji Kurita, Katsuhiro Kikuchi, Toshiko Aruga, and Takashi Tsuchiya*

*Faculty of Pharmaceutical Sciences, Hokuriku University, Kanagawa-machi, Kanazawa 920-11, Japan

Abstract

Thermolysis of the 3,6-diazabenzo[g]tricyclo[3.3.0.02,4]octane (7) at 180 °C resulted in rearrangement to give the pyrroloindole (9), whereas flash vacuum pyrolysis of the 6-aza-3-oxabenzotricyclooctanes (8) at 530 °C resulted in both ring-expansion and rearrangement to afford the novel 4,1-benzoxazocines (10) and furoindoles (11).