Abstract:Synthesis of 1,3-Teraryls Through Carbanion Induced Ring Transformation of Functionalized Pyran-2-ones.-The title compounds are prepared by reaction of the pyranones (I) with aryl methyl ketones. The presence of a nitro group at position 3 or 4 of acetophenones such as (V) produces the 1,3-teraryls (VI) exclusively, whereas with 2-nitroarenes no 1,3-teraryls are observed. Furthermore, the reaction with the 3-cyano-pyranone (XII) gives no 1,3-teraryl product. -(GOEL, A.; SRIVASTAVA, P.; NATH, M.; RAM, V. J.; Sy… Show more
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