A Straightforward Synthesis
of 2,3,4,5-Tetrasubstituted Tetrahydrofuran Derivatives
作者:Joaquín Plumet、Ana Aljarilla
DOI:10.1055/s-0028-1083180
日期:——
A concise synthesis of 2,3,4,5-tetrasubstituted tetrahydrofurans starting from furan via 7-oxabicyclo[2.2.1]hept-5-ene-2,3-diol (2,3-dihydroxy-7-oxanorbomene) derivatives is reported. The key step of these transformations was the sequence ring-opening metathesis-cross metathesis (ROM-CM) reactions of the oxabicyclic compounds in the presence of ethylene and using commercially available 2nd generation
2,3,4,5-四取代四氢呋喃从呋喃通过 7-oxabicyclo[2.2.1]hept-5-ene-2,3-diol (2,3-dihydroxy-7-oxorobomene) 衍生物的简明合成是报道。这些转化的关键步骤是氧二环化合物在乙烯存在下并使用市售的第二代 Hoveyda-Grubbs 催化剂进行序列开环复分解 - 交叉复分解 (ROM-CM) 反应。