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Communication | Regular issue | Vol 22, No. 8, 1984, pp.1729-1732
Published online, 1st January, 1970
DOI: 10.3987/R-1984-08-1729
Structural Elucidation of the Pyrolysis Products of 1,4-Benzoxazine Derivatives

Norio Kawahara,* Takako Nakajima, Tsuneo Itoh, Hiroaki Takayanagi, and Haruo Ogura

*Hokkaido College of Pharmacy, 7-1 Katsuraoka-cho, Otaru 047-02, Japan


The thermal reaction of trimethyl 2,3-dihydro-6-chloro-2-oxo-4H-1,4-benzoxazine-Δ3,γ-aconitate afforded novel cyclization products. These compounds were characterized by spectral data and X-ray crystallographic analysis.