Le dibrosylate du cis,endo-oxa-7bicyclo [2.2.1] heptanediol-2,3 s'acetolyse 加快速反应 que 子异构体。Dans la serie monobrosylate 通讯员,l'isomere exo s'acetolyse plus rapidement que l'isomere exo
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