Tetrahedron Letters

Triflic acid promoted synthesis of polycyclic aromatic compounds

A Li, DJ DeSchepper, DA Klumpp

Index: Li, Ang; DeSchepper, Daniel J.; Klumpp, Douglas A. Tetrahedron Letters, 2009 , vol. 50, # 17 p. 1924 - 1927

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Citation Number: 15

Abstract

The triflic acid (CF3SO3H) promoted cyclizations of 2-styrylbiaryls are found to be useful for the synthesis of polycyclic aromatic compounds, including functionalized derivatives of polycyclic aromatic compounds and heterocyclic systems. The reaction involves cationic cyclization followed by an elimination of benzene from the intermediate product.

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Synthesis of anthra [b] thiophenes and benzo [b] naphtho [d]...

[Tominaga, Yoshinori; Lee, Milton L.; Castle, Raymond N. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 967 - 972]

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Thiophene analogues of carcinogenic polycyclic hydrocarbons....

[Croisy; Mispelter; Lhoste; et al. Journal of Heterocyclic Chemistry, 1984 , vol. 21, # 2 p. 353 - 359]