Simple and efficient route for the synthesis of functionalized 2,3,7,8-tetrahydro-4H,6H-pyrano[3,2-g]chromene-4,6-diones
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DOI: 10.1007/s10593-017-2085-x
Abstract: A novel series of spiro[chromene-2,1'-cyclohexan]-4(3H)-one derivatives containing either a chalcone or flavanone fragment in their molecules was synthesized. 2'-Hydroxychalcones, containing a spirochromanone moiety, underwent cyclocondensation with formation of a condensed pyran ring. The catalytic efficiency… read more here.
Keywords: route synthesis; chromene; synthesis functionalized; efficient route ... See more keywords