Tandem Ruthenium-Catalyzed Redox Isomerization−O-Conjugate Addition: An Atom-Economic Synthesis of Cyclic Ethers
作者:Barry M. Trost、Alicia C. Gutierrez、Robert C. Livingston
DOI:10.1021/ol9007876
日期:2009.6.18
An atom-economical method for the convenient synthesis of tetrahydropyrans and tetrahydrofurans is reported. Enones and enals derived from the [IndRu(PPh3)2Cl]-catalyzed redoxisomerization of primary and secondary propargylalcohols undergo a subsequent intramolecular conjugate addition to provide cyclic ethers in excellent yields.