A Novel Synthesis of 3,4-Dihydro-2H-1-benzothiopyrans. Acid-Catalyzed Intermolecular Cycloaddition of Acetylenic Alcohols with Arenethiols

DOI: 10.1246/cl.1990.1185

Source and publish data:

Chemistry Letters p. 1185 - 1188 (1990)

Update date:2022-08-04

Topics:

Authors:

Ishino, Yoshio

Masaoka, Toshihiro

Hirashima, Tsuneaki

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Article abstract of DOI:10.1246/cl.1990.1185

Reaction of the acetylenic alcohols with arenethiols in the presence of p-toluenesulfonic acid (p-TsOH) gave 3,4-dihydro-2H-1-benzothiopyrans (thiochromans) in good to excellent yields, the reaction of which may involve intermolecular cycloaddition via ca

Full text of DOI:10.1246/cl.1990.1185

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