Anhydrous ferric chloride dispersed on silica gel induced ring enlargement of tertiary cycloalkanols. II : a convenient homologation of cycloalkanones, preparation of spiro systems and propella -γ-lactones
作者:A. Fadel、J. Salaun
DOI:10.1016/s0040-4020(01)96528-7
日期:1985.1
The reagent obtained by mixing anhydrous FeCl3 and silica gel induced, in the lack of any solvent, dehydration of tertiary cycloalkanols, specific C4→C5 and C5 →C6 enlargement, formation of spiro compounds and propella-γ- lactones and cleavage of tetrahydropyranyl ethers.
通过在无溶剂的情况下将无水FeCl 3和硅胶混合得到的试剂,导致叔环链烷醇脱水,C 4 →C 5和C 5 →C 6增大,形成螺环化合物和螺旋桨-γ-内酯,四氢吡喃基醚的裂解。