good yields under free radical conditions. Reduction of the resulting secondary iodides gave long-chain alkanethioacetates with perfluoroalkyl terminal segments. These intermediates were readily transformed into the corresponding terminally perfluorinated alkanethiols by acidic deprotection. The product thiols should find use in the generation of well-defined fluorinated interfaces using the self-assembled
本文描述了一系列含
全氟化末端链段的链烷
硫醇的合成:F(CF 2)m(CH 2)n SH,其中m = 1,n = 9-15;m = 2,n = 11-14;m = 3,n = 10-13;和米 = 4,Ñ = 9-12。通式F(CF 2)m(CH 2)n I的
氟化烷基
碘,其中m = 1-4和n 将= 0或1添加到在α末端被
硫代乙酸酯基官能化的长链ω-烯烃。反应在自由基条件下以良好的产率进行。所得仲
碘的还原得到具有
全氟烷基末端链段的长链链烷
硫基
乙酸酯。这些中间体很容易通过酸性脱保护作用转化为相应的末端
全氟链烷
硫醇。使用自组装单分子层(S
AM)技术,应将产物
硫醇用于定义明确的
氟化界面。