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.