A facile two-step synthesis of thiophene end-capped aromatic systems

B Rungtaweevoranit, A Butsuri, K Wongma, K Sadorn…

Index: Rungtaweevoranit, Bunyarat; Butsuri, Akkarapol; Wongma, Krittaphat; Sadorn, Karoon; Neranon, Kitjanit; Nerungsi, Chakkrapan; Thongpanchang, Tienthong Tetrahedron Letters, 2012 , vol. 53, # 14 p. 1816 - 1818

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Citation Number: 12

Abstract

Thiophene end-capped aromatic analogues, that is, naphthothiophenes, naphthodithiophenes, pyrenothiophene, and benzotrithiophene, can be prepared from commercially available hydroxyarenes in two steps, including (1) a consecutive acid- mediated nucleophilic aromatic substitution of hydroxyarenes with 2-mercaptoethanol, followed by cyclization to form an arene-fused dihydrothiophene, and (2) oxidation of the ...