The synthesis is reported of 4-[ω-(3-thienyl)alkyl]pyridine (2), 4-[ω-(3-thienyl)alkyl]-2,2′- bipyridine (3) and 4-methyl-4'-[ω-(3-thienyl)alkyl]-2,2′-bipyridine (4), where the length of the alkyl chain is varied (n = 2, 5, 7, 9, 11). The synthetic methodology involved the reaction of the 3-(ω- bromoalkyl ) thiophen with the anions derived from 4-methylpyridine, 4-methyl-2,2′-bipyridine or 4,4′-dimethyl-2,2′-bipyridine by lithiation . The n.m.r. (1H and 13C) and electronic spectral characteristics of the compounds are discussed.
报告了 4-[ω-(3-噻吩基)烷基]吡啶 (2)、4-[ω-(3-噻吩基)烷基]-2,2′-联吡啶 (3) 和 4-甲基-4'-[ω-(3-噻吩基)烷基]-2,2′-联吡啶 (4) 的合成,其中烷基链的长度是变化的(n = 2、5、7、9、11)。合成方法是将 3-(ω-溴烷基)噻吩与来自 4-甲基吡啶、4-甲基-2,2′-联吡啶或 4,4′-二甲基-2,2′-联吡啶的阴离子通过石化作用进行反应。讨论了这些化合物的 n.m.r.(1H 和 13C)和电子光谱特性。