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RESEARCH PRODUCT
Diels-Alder reactions of 1-phenylpyrano[3,4-b]indol-3-ones with alkynes: New functionalized carbazoles
Houshang Erfanian-abdoustUlf Pindursubject
chemistry.chemical_compoundchemistryBicyclic moleculeOrganic ChemistryChemical conversionDiels alderOrganic chemistryPhysical and Theoretical ChemistryAliphatic compoundBenzoic acidCatalysisdescription
3-Indolylalkanoic acids 2 react with benzoic acid anhydride under catalysis of Et2O - ZnCl2 and mild conditions to furnish the 1-phenyl-substituted pyrano[3,4-b]indol-3-ones 1c, 1d, and 3a, 3b. Products 1c, 1d, and 3b may be converted into the novel functionalized carbazoles 4 and 5 by reaction with acceptor-substituted alkynes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-08-13 | Liebigs Annalen der Chemie |