InCl3-catalyzed efficient one-pot synthesis of 2-pyrrolo-3′-yloxindoles

Tetrahedron Letters

Volumn 50, Issue 27, 2009, Pages 3959-3962

  Shanthi, Gnanamani ^a   Perumal, Paramasivan T ^a  

^a CENTRAL LEATHER RESEARCH INSTITUTE   (India)

Author keywords

Keto ester; 3 Phenacylideneoxindole; InCl3; Paal Knorr condensation; Three component

Indexed keywords

AMMONIUM ACETATE; ESTER DERIVATIVE; INDOLE DERIVATIVE;

ARTICLE; CATALYSIS; MICHAEL ADDITION; ONE POT SYNTHESIS; POLYMERIZATION;

EID: 65549095350     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2009.04.089     Document Type: Article

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39. 3 (20 mol %) was added and refluxed for 10-15 min as mentioned in Table 2. Upon cooling, the product precipitated from the reaction mixture, which was filtered, dried, and recrystallized from ethanol.
40. 2: C, 76.34; H, 5.49; N, 8.48. Found: C, 76.27; H, 5.40; N, 8.41.