T. Ibata, J. Toyoda, H. Tamura
1987
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0
Influential Citations
4
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Journal
Bulletin of the Chemical Society of Japan
Abstract
The molecular structure of the exo-Diels–Alder adduct of 5-methoxy-2-methyl-4-(p-nitrophenyl)oxazole with N-methylmaleimide was determined by X-ray analysis. The crystals are triclinic, space group P\bar1, with a=9.160(2), b=11.182(2), c=8.816(1) A, α=92.39(1), β=116.47(1), γ=100.60(1)°, Z=2, Dx=1.455 Mg m−3, Dm=1.458 Mg m−3, μ(Cu Kα)=9.76 cm−1. The configuration of the exo-adduct is consistent with that predicted on the basis of the NMR data.