1. Journal of Heterocyclic Chemistry, Volume 20 Issue 3, Pages 645 - 648
Reaction of 2-dimethylaminomethylene-1,3-diones with dinucleophiles. II. Synthesis of 5-(alkyl)(phenyl)-4-acylisoxazoles and 6,7-dihydro-1,2-benzisoxazol-4(5H)-ones
Giulia Menozzi, Pietro Schenone, Luisa Mosti
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http://dx.doi.org/10.1002/jhet.5570200327Tricyclic heterocycles derived from 4-oxo-4,5,6,7-tetrahydrobenzofuran
William A. Remers, Gerald S. Jones Jr.
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http://dx.doi.org/10.1002/jhet.5570120247