Tetrahedron

Stable heteroareniumions-VIII some transformations of alkylthiophenium ions and new synthesis of 2-t-butylthiophene

LI Belen'Kii, AP Yakubov

文献索引：Belen'kii, L. I.; Yakubov, A. P. Tetrahedron, 1984 , vol. 40, # 13 p. 2471 - 2477

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被引用次数: 23

摘要

The ratio of isomeric σ-complexes formed, from thiophene, t-butyl chloride and AlCl3 was found to be changed while keeping at room temperature within 1–2 days. This allows to obtain after deprotonation 2-t-butylthiophene containing only 3% of 3-isomer. Transformations of σ-complexes formed by protonation of individual 2-and 3-t- butylthiophenes in the presence of AlCl3 have been studied and there was found that ...