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Syntheses and Crystal Structures of 2,7‐Di(trimethylsilyl)thieno[3,2‐ e ]benzothiophene, 1,2,5,6(5)‐Tetra(trimethylsilyl)‐1,2,5,6(2,3)‐tetrathiophenacyclooctaphan‐3( z ),7( z )‐diene, and 2,7‐Di(trimethylsilyl)thieno[3,2‐ e ]benzothiophene‐4‐ol
Author(s) -
Wang Zhihua,
Shi Jianwu,
Tian Xinyong,
Xu Li,
Li Chunli,
Wang Hua
Publication year - 2013
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.1100
Subject(s) - benzothiophene , chemistry , trimethylsilyl , intramolecular force , medicinal chemistry , crystal structure , tetra , stereochemistry , organic chemistry , thiophene
With 5,5′‐di(trimethylsilanyl)‐3,3′‐bithiophenyl‐2,2′‐dicarbaldehyde as precusor, 2,7‐di(trimethylsilyl)‐thieno[3,2‐ e ]benzothiophene was obtained effiently via intramolecular McMurry reaction . At the same time, another two unexpected compounds, 1,2,5,6(5)‐tetra‐(trimethylsilyl)‐1,2,5,6(2,3)‐tetrathiophena‐cyclooctaphan‐3( Z ),7( Z )‐diene and 2,7‐di(trimethylsilyl)thieno[3,2‐ e ]‐benzothiophene‐4‐ol were generated as side products. The crystal structures of all three title compounds are described.