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Chapter – 4 Studies on different types of reactions…..
4-hydroxycoumarins and aromatic aldehydes are known to produce 2,
4-chromane diones (arylidine at C3 position) and coumarin dimers under
reflux, with or without base. Thus, few new chromane diones were prepared
using pyrazole aldehydes.
Though the chemistry of the synthesized compounds is known, the
compounds are reported herein for the first time. Biological importance of
such important compounds is the rational behind the current work done in this
chapter.
Department of Chemistry, Saurashtra University, Rajkot – 360 005 217