A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Organocatalytic Asymmetric Synthesis of 2,3 '-Connected Bis-Indolinones by Mannich Reactions of N-Acetylindolin-3-ones with Isatin N-Boc Ketimines
Tekijät: Gajulapalli VPR, Jafari E, Kundu DS, Mahajan S, Peuronen A, Rissanen K, Enders D
Kustantaja: GEORG THIEME VERLAG KG
Julkaisuvuosi: 2017
Journal: Synthesis: stuttgart
Tietokannassa oleva lehden nimi: SYNTHESIS-STUTTGART
Lehden akronyymi: SYNTHESIS-STUTTGART
Vuosikerta: 49
Numero: 22
Aloitussivu: 4986
Lopetussivu: 4995
Sivujen määrä: 10
ISSN: 0039-7881
DOI: https://doi.org/10.1055/s-0036-1590823
Tiivistelmä
A highly diastereo- and enantioselective Mannich reaction of N-acetylindolin-3-ones with isatin N-Boc ketimines to form 2,3'-connected bis-indolinones is developed employing a low loading of a readily available bifunctional thiourea catalyst. The asymmetric synthesis connects two indolinones via a vic-diamine unit and generates two neighboring stereocenters.
A highly diastereo- and enantioselective Mannich reaction of N-acetylindolin-3-ones with isatin N-Boc ketimines to form 2,3'-connected bis-indolinones is developed employing a low loading of a readily available bifunctional thiourea catalyst. The asymmetric synthesis connects two indolinones via a vic-diamine unit and generates two neighboring stereocenters.