Facile synthesis of acetylene-substituted terthiophenes
作者:Pawel Wagner、Ashton C. Partridge、Kenneth W. Jolley、David L. Officer
DOI:10.1016/j.tetlet.2007.07.032
日期:2007.9
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.