Schmidt Reaction of E-3-Benzylidenechromanones and E-3-Benzylidenethiochromanones

Autor: Tapas K. Mandal, Rammohan Pal, Rina Mondal, Sankar P. Dey, Asok K. Mallik
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Chemistry, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 2090-9063
2090-9071
DOI: 10.1155/2013/392128
Popis: On treatment with NaN3/c. H2SO4-HOAc or NaN3/TFA, E-3-benzylidenechromanones are mostly converted to E-β-aminobenzylidenechromanones while E-3-benzylidenethiochromanones are converted to 3-benzoylthiochromones. A structurally new type of product has been isolated for the reaction of E-3-benzylidene-4′-methoxychromanone with NaN3/TFA. Mechanistic paths have been suggested for formation of the products.
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