DIELS-ALDER REACTIONS OF PYRANOINDOL-3-ONES WITH OLEFINIC COMPOUNDS : SYNTHESIS OF (1,2-DIHYDRO)CARBAZOLES

Article abstract of DOI:10.1016/S0040-4020(01)89146-8

The Diels-Alder reaction of substituted pyrano <3,4-b>indol-3-ones 1 with olefinic dienophiles is described.The role of the substitution pattern on the stability of the obtained 1,2-dihydrocarbazoles is interpreted in terms of electronic and steric effect