Catalytic Oxidative C–H Annulation of Arylthiol Derivatives with 1,3-Diynes toward 3,3′-Bibenzothiophenes

Disclosed herein is a catalytic oxidative C–H annulation of thiophenol derivatives with 1,3-diynes, which provides an efficient synthetic approach to both symmetrical and nonsymmetrical 3,3′-bibenzothiophenes. This protocol exhibits a broad substrate scope, excellent functional group tolerance, high...

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Veröffentlicht in:Organic letters 2022-03, Vol.24 (10), p.1929-1934
Hauptverfasser: Lei, Tao, Wan, Danyang, Lan, Jingbo, Yang, Yudong
Format: Artikel
Sprache:eng
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Zusammenfassung:Disclosed herein is a catalytic oxidative C–H annulation of thiophenol derivatives with 1,3-diynes, which provides an efficient synthetic approach to both symmetrical and nonsymmetrical 3,3′-bibenzothiophenes. This protocol exhibits a broad substrate scope, excellent functional group tolerance, high regioselectivity, and catalyst-enabled switchable mono/diannulation selectivity. Moreover, three novel helical-type bithiophene heptagonal imides, which are potentially applicable in optoelectronic materials, are constructed based on this reaction.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.2c00295