Journal of Organic Chemistry p. 4751 - 4753 (1981)
Update date:2022-08-05
Topics:
Miller, Gerald A.
Heindel, Ned D.
A convenient means of condensing various salicylaldehydes with γ-thiobutyrolactone has been found.The condensation, which is accompanied by a rearrangement, yields either a product of Michael-additive cyclization (a 2,3,3a,9b-tetrahydrothieno<3,2-c>coumarin) or one of oxidation (the disulfide of a 3-(2-mercaptoethyl)coumarin).
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