A convenient three-step synthesis has been developed to prepare a series of homologous 4,4′-di(Ï-thioalkyl)-2,2′-bipyridines from 4,4′-dimethylbipyridine. The smallest member of the series, 4,4′-di(thiomethyl)-2,2′-bipyridine, has been synthesized by a slightly different route from 4,4′-bis(trimethylsilylmethyl)-2,2′-bipyridine; the monothiomethyl analogue has been obtained from the corresponding mono(trimethylsilylmethyl)bipyridine. Additionally, the chlororheniumtricarbonyl complex of each of the new thiol-substituted ligands has been prepared.
已经开发出一个便利的三步合成方法,以从4,4′-二
甲基吡啶合成一系列同系物4,4′-二(ω-
硫烷基)-2,2′-
吡啶。该系列中最小的成员,4,4′-二(
硫甲基)-2,2′-
吡啶,是通过与4,4′-二(trimethylsilylmethyl)-2,2′-
吡啶略有不同的路线合成的;单
硫甲基类似物则是通过相应的单(trimethylsilylmethyl)
吡啶获得的。此外,已经制备了每种新型
硫醇取代
配体的
氯铼三羰基配合物。