Influence of Geminal Disubstitution on Samarium Diiodide Induced Reductive Cyclizations of γ-Aryl Ketones
作者:Hans-Ulrich Reissig、André Niermann
DOI:10.1055/s-0030-1259526
日期:2011.3
Geminal disubstitution at the alkyl chain of γ-aryl ketones significantly influences the efficacy of samarium diiodide induced cyclizations providing significantly higher yields. β,β-Disubstituted aryl ketones 11a―e and γ,γ-disubstituted aryl ketone 14 could be converted into the corresponding hexahydronaphthalene derivatives in good yields. On the other hand, α,α-disubstituted ketone 9 only gave the