Unanticipated products from reductive and oxidative cleavages of 1-substituted 3,3-diphenyl-1′-methylspiro[azetidine-2,3′-indoline]-2′,4-diones
作者:Girija S. Singh、Patrick M. Luntha
DOI:10.1002/jhet.731
日期:2011.11
Titled spiroazetidinones 1a, 1b undergo reductive cleavage on treatment with excess lithiumaluminumhydride forming 3‐benzhydryl‐1‐methylindole as the main product together with a γ‐amino alcohol depending upon the substituent present on the azetidin‐2‐one ring. Treatment of 1a with Ce(IV) ammonium nitrate affords 2‐hydroxy‐N‐(4‐methoxyphenyl)‐2,2‐diphenylacetamide besides the anticipated N‐unsubstituted