Tetrahedron Letters

Photocyclization and photooxidation of 3-styrylthiophene

K Song, LZ Wu, CH Yang, CH Tung

Index: Song, Kai; Wu, Li-Zhu; Yang, Chun-He; Tung, Chen-Ho Tetrahedron Letters, 2000 , vol. 41, # 12 p. 1951 - 1954

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Citation Number: 22

Abstract

The photocyclization, dye-sensitized photooxidation and auto-photooxidation of 3- styrylthiophene have been examined. cis-3-Styrylthiophene undergoes photochemical cis– trans isomerization and cyclization to dihydronaphtho-[1, 2-b] thiophene. The quantum efficiency for photocyclization in nonpolar solvents is greater than that in polar solvents. Dye- sensitized photooxidation of 3-styrylthiophene gives benzaldehyde and 3- ...

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