作者:Paul L Coe、Anthony J Rees
DOI:10.1016/s0022-1139(99)00189-x
日期:2000.1
to give 3-chlorotetrafluoropyridine and its subsequent hydrodechlorination using hydrogen over palladium on alumina at 250–270°C. The formation and reactions of the 3-lithio derivative have been studied with the aim of obtaining 3,4-disubstituted trifluoropyridines. Routes to such materials have been developed and their conversion to deazapurine derivatives as potential substrates for the generation
从容易获得的3,5-二氯三氟吡啶开始,通过在受控条件下进行卤素交换,制得3-氯四氟吡啶,随后使用钯/氧化铝在250-250℃的氢进行加氢脱氯,已建立了可靠的2,3,4,6-四氟吡啶路线。 270℃。为了获得3,4-二取代的三氟吡啶,已经研究了3-硫代衍生物的形成和反应。已经开发了这种材料的途径,并且报道了它们转化成脱氮嘌呤衍生物作为产生反义核苷的潜在底物的方法。