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Facile synthesis of acetylene-substituted terthiophenes

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
48
Issue
36
Identifiers
DOI: 10.1016/j.tetlet.2007.07.032

Abstract

Abstract A modified Horner–Emmons condensation reaction has been employed for the synthesis of acetylene-substituted terthiophenes in excellent yields. Conjugating 3′-aryl substituents to terthiophene using an ethyne rather than an ethene linker results in enhanced planarity of the resulting molecule as established by X-ray structural analysis of (2,2′:5′,2″-terthiophen-3′-yl)-4‴-pyridylethyne.

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