A tandem palladium-catalyzed Heck-lactonization through the reaction of ortho-iodophenols with β-substituted acrylates: synthesis of 4,6-substituted coumarins

Tetrahedron Letters

Volumn 49, Issue 20, 2008, Pages 3322-3325

  Fernandes, Talita de A ^a   Carvalho, Rita de C C ^a   Gonçalves, Tatiana M D ^a   da Silva, Alcides J M ^a   Costa, Paulo R R ^a  

^a FEDERAL UNIVERSITY OF RIO DE JANEIRO   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

(2,2 DIMETHYL 1,3 DIOXOLAN 4 YL) 2 OXO 2H CHROMENE 6 CARBOXYLATE; (2,2 DIMETHYL 1,3 DIOXOLAN 4 YL) 2H CHROMEN 2 ONE; (2,2 DIMETHYL 1,3 DIOXOLAN 4 YL) 6 NITRO 2H CHROMEN 2 ONE; 2 IODOPHENOL DERIVATIVE; 4 (2,2 DIMETHYL 1,3 DIOXOLAN 4 YL) 2H CHROMEN 2 ONE; 4 METHYL 2H CHROMEN 2 ONE; ACRYLIC ACID DERIVATIVE; COUMARIN DERIVATIVE; MANNITOL; METHYL 4 METHYL 2 OXO 2H CHROMENE 6 CARBOXYLATE; PALLADIUM; PHENOL DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CATALYSIS; CHEMICAL STRUCTURE; LACTONIZATION;

EID: 42149144598     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2008.03.037     Document Type: Article

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21. +].
22. +].
23. +].
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25. 3), 6.31 (s, 1H, {double bond, long}CH), 7.33 (m, 2H, ArH), 7.52 (d, J = 7.1 Hz, 1H, ArH), 7.61 (d, J = 7.9 Hz, 1H, ArH).
26. 3), 6.36 (d, J = 1.2 Hz, 1H, {double bond, long}CH), 7.38 (d, J = 8.6 Hz, 1H, ArH), 8.20 (dd, J = 8.6, 2 Hz, 1H, ArH), 8.32 (d, J = 2 Hz, 1H, ArH).