
pmid: 15099080
The first total synthesis of racemic perophoramidine is described. The key step features the highly stereoselective introduction of the vicinial quaternary centers via base-promoted carbon-carbon bond formation between a 3-alkylindole and a 3-bromo-3-alkylindolin-2-one. This transformation presumably proceeds through a conjugate addition or Diels-Alder cycloaddition of the 3-alkylindole with a 3-alkylindol-2-one intermediate.
Lactones, Molecular Structure, Cyclization, Hydrocarbons, Halogenated, Stereoisomerism, Heterocyclic Compounds, 4 or More Rings
Lactones, Molecular Structure, Cyclization, Hydrocarbons, Halogenated, Stereoisomerism, Heterocyclic Compounds, 4 or More Rings
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