The reactions of phenols with α, β-unsaturated aromatic acids in presence of polyphosphoric acid: Synthetic and mechanistic studies
PL Majumder, S Chatterjee Lahiri…
Index: Majumder; Chatterjee; Mukhoti Journal of the Indian Chemical Society, 2001 , vol. 78, # 10-12 p. 743 - 755
Full Text: HTML
Citation Number: 10
Abstract
Résumé/Abstract The reactions of cinnamic acid with phenol itself, catechol, hydroquinone, pyrogallol and 2-naphthol in presence PPA were studied and that with resorcinol was reinvestigated. With phenol itself and hydroquinone were obtained 3, 4-dihydro-4- phenylcoumarin (1r) and 6-hydroxy-3, 4-dihydro-4-phenylcoumarin (Is), respectively, as the sole products. Catechol and pyrogallol, on the other hand, afforded, besides the ...
Related Articles:
[Singh, Ishwar; Prasad, Ashok K.; Sharma, Ajendra K.; Saxena, Rajendra K.; Olsen, Carl E.; Cholli, Ashok L.; Samuelson, Lynne A.; Kumar, Jayant; Watterson, Arthur C.; Parmar, Virinder S. Bioorganic and Medicinal Chemistry, 2003 , vol. 11, # 4 p. 529 - 538]
Selective synthesis of 3, 4-dihydrocoumarins and chalcones from substituted Aryl Cinnamic Esters
[Jeon, Jae-Ho; Yang, Deok-Mo; Jun, Jong-Gab Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 1 p. 65 - 70]
Selective synthesis of 3, 4-dihydrocoumarins and chalcones from substituted Aryl Cinnamic Esters
[Jeon, Jae-Ho; Yang, Deok-Mo; Jun, Jong-Gab Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 1 p. 65 - 70]
Selective synthesis of 3, 4-dihydrocoumarins and chalcones from substituted Aryl Cinnamic Esters
[Jeon, Jae-Ho; Yang, Deok-Mo; Jun, Jong-Gab Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 1 p. 65 - 70]
Selective synthesis of 3, 4-dihydrocoumarins and chalcones from substituted Aryl Cinnamic Esters
[Jeon, Jae-Ho; Yang, Deok-Mo; Jun, Jong-Gab Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 1 p. 65 - 70]