The Condensation of Oxalic Esters with Esters of β-Alanine and N-Substituted β-Aminopropionic Acids. Synthesis of Some Derivatives of 2,3-Dioxopyrrolidine and 2-Oxo-3-methoxy-3-pyrroline
Synthesis of new pyrrolo[3,4-b]indol-3-ones as latent substrates for pyrrolo[3,4-b]indoles
作者:Mark G. Saulnier、Steven M. Schreiber、Kerri L. Cavanaugh、Robert B. Perni、H. Howard Joyner、and Gordon W. Gribble
DOI:10.24820/ark.5550190.p011.365
日期:——
editorial office Abstract We report the synthesis of new examples of the 1,4-dihydropyrrolo[3,4-b]indol-3(2H)-one ring system via Fischer indolization between the appropriate phenylhydrazines and pyrrolidine-2,3-diones. Lithiation at the C1 position with lithium diisopropylamide following by quenching with iodomethane affords 1-methyl-1,4dihydropyrrolo[3,4-b]indol-3(2H)-ones in excellent yield.