Schmidt Reaction of E‐3‐Benzylidenechromanones and E‐3‐Benzylidenethiochromanones | Zendy

Tapas Kumar Mandal | Zendy; Rammohan Pal | Zendy; Rina Mondal | Zendy; Sankar P. Dey | Zendy; Asok K. Mallik | Zendy

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

Author(s) -

Tapas Kumar Mandal,

Rammohan Pal,

Rina Mondal,

Sankar P. Dey,

Asok K. Mallik

Publication year - 2013

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/392128

Subject(s) - chemistry , stereochemistry , product (mathematics) , medicinal chemistry , mathematics , geometry

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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