Efficient synthesis of 3-acyl-5-hydroxybenzofurans via copper(II) triflate-catalyzed cycloaddition of unactivated 1,4-benzoquinones with 1,3-dicarbonyl compounds

Tetrahedron Letters

Volumn 51, Issue 16, 2010, Pages 2136-2140

  Mothe, Srinivasa Reddy ^a   Susanti, Dewi ^a   Chan, Philip Wai Hong ^a  

^a Nanyang Technological University   (Singapore)

Author keywords

[No Author keywords available]

Indexed keywords

1,3 DICARBONYL DERIVATIVE; 1,4 BENZOQUINONE DERIVATIVE; BENZOFURAN DERIVATIVE; CARBONYL DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CATALYSIS; CRYSTAL STRUCTURE; CYCLOADDITION; REACTION ANALYSIS; SYNTHESIS;

EID: 77949486672     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2010.02.066     Document Type: Article

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33. CCDC 754898 (3o) and 754899 (3k) contains the supplementary crystallographic data for this Letter. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
34. It is possible that the copper(II) catalyst could also act as a simple electron-oxidizing agent and that more complex radical processes are involved, this cannot be ruled out at this time.