An eco-friendly synthesis of 2-aminochromenes and indolyl chromenes catalyzed by InCl3 in aqueous media

Tetrahedron Letters

Volumn 48, Issue 38, 2007, Pages 6785-6789

  Shanthi, Gnanamani ^a   Perumal, Paramasivan T ^a  

^a CENTRAL LEATHER RESEARCH INSTITUTE   (India)

Author keywords

2 Aminochromenes; Indium(III) chloride; Three component reaction

Indexed keywords

CHROMENE DERIVATIVE; FUNCTIONAL GROUP; INDIUM CHLORIDE;

AQUEOUS SOLUTION; ARTICLE; CARBON NUCLEAR MAGNETIC RESONANCE; CATALYSIS; CHEMICAL ANALYSIS; CHEMICAL REACTION; CHEMICAL STRUCTURE; ECOLOGY; INFRARED RADIATION; MASS SPECTROMETRY; PROTON NUCLEAR MAGNETIC RESONANCE; ROOM TEMPERATURE; SYNTHESIS;

EID: 34548038657     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.07.102     Document Type: Article

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46. 4 and concentrated in vacuo. The resulting product was purified by column chromatography on silica gel (Merck, 60-120 mesh, ethyl acetate-hexane, 3:7) to afford pure product (9a-g).
47. 3O: C, 75.73; H, 5.02; N, 13.94. Found: C, 75.68; H, 4.95; N, 13.89.
48. 3O: C, 78.32; H, 4.48; N, 12.45. Found: C, 78.27; H, 4.42; N, 12.38.