Diels-alder reactions of pyrano[3,4-b]indol-3-ones with olefinic compounds : Synthesis of (1,2-dihydro)carbazoles
作者:P. Van Doren、D. Vanderzande、S. Toppet、G. Hoornaert
DOI:10.1016/s0040-4020(01)89146-8
日期:1989.1
The Diels-Alderreaction of substituted pyrano [3, 4-b]indol-3-ones 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 effects on the aromatization to the corresponding carbazoles.