Journal of Organic Chemistry p. 997 - 1001 (1982)
Update date:2022-08-02
Topics:
Hogeveen, H.
Kok, D. M.
A one-pot synthesis of substituted 3-oxo-2-azabicyclo<2.2.0>hex-5-enes (Dewar pyridones) from alkynes, aluminum halides, and isocyanates is described.The mechanism of the reaction of isocyanates with the intermediate aluminum halide ? complexes of cyclobutadienes is discussed on the basis of the substitution pattern of the obtained bicyclic products.The thermal and acid-promoted reactions of some of the compounds are reported.
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