Ferrocene compounds XXIII. Synthesis and reactions of the new type of methyl ferrocyloxyalkanoates
作者:V. Kovač、V. Rapić、I. Sušnik、M. Šuprina
DOI:10.1016/s0022-328x(96)06649-1
日期:1997.3
The new types of ferrocenyloxaaliphatic acid ester, FcCHROCHR′COOMe (R = H, Me, Ph; R′ = H, Me) (7) have been prepared by the action of alkoxides derived from methyl glycolate or methyl lactate on the corresponding ferrocenylcarbinyl acetates (2) or N,N,N-trimethylferrocylammonium iodides (4). The esters obtained were accompanied by a small quantity of oligomeric esters, FcCHR(OCHR′CO)n OMe (9), and
通过从乙醇酸甲酯或乳酸甲酯衍生的醇盐在相应的二茂铁基羰基乙酸酯上作用,制备了新型二茂铁基草酰脂酸酯FcCHROCHR'COOMe(R = H,Me,Ph; R'= H,Me)(7) (2)或N,N,N-三甲基二茂铁碘化铵(4)。获得的酯伴随有少量的低聚酯FcCHR(OCHR'CO)n OMe(9)和或多或少的二茂铁基甲基醚(8)。与类似的苯氧乙酸甲酯(6)碱水解为苯氧乙酸(5)相反,链烷酸钠10的酸化作用通过酯化7得到的酯出乎意料地得到了相应的二茂铁基羰基醇1。以类似的方式,在盐酸水溶液的作用下,酯7被转化为上述甲醇和二铁茂铁醚11的混合物。讨论了反应10 → 1和7 → 1,11的机理。