Studies on the Transesterification and Macrolactonization of 2-Pyridyl Esters by Intramolecular N-Alkylation or Metal Ion Coordination
作者:Anthony G. Barrett、Mathias U. Frederiksen
DOI:10.1055/s-2005-918476
日期:——
In a process analogous to use of the Mukaiyama reagent, Ï-hydroxyalkyl 2-pyridyl ester derivatives were converted into lactones by N-alkylation or the coordination of copper(II) triflate and transacylation of the resultant electrophilic Ï-hydroxyalkanecarboxypyridinium salts.
在类似于Mukaiyama试剂使用的过程中,Ï-羟基烷基2-吡啶基酯衍生物通过N-烷基化或铜(II)三氟甲烷磺酸盐的配位以及所得电不到的Ï-羟基烷烃羧基吡啶盐的转酰化反应转化为内酯。