Journal of Organic Chemistry p. 2458 - 2459 (1980)
Update date:2022-08-05
Topics:
Reynolds, George A.
Chen, Chin H.
Unsymmetrical Δ4,4'-bi-4H-pyrans and -thiopyrans are prepared from the Wittig reagent which is derived from (4H-pyran-4-yl)triphenylphosphonium salts or the thio analogues by allowing the reagent to react with a pyrylium or thiopyrylium salt wi
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