Organo-phosphorus compounds S 0080The First Synthesis of Diethyl α,α-Chlorofluorobenzylphosphonates. -The title compounds (III) are prepared from α-hydroxyphosphonates by chlorination followed by fluorination. -(WU, D.; HE, Y.; TANG, R.; GUAN*
A simple preparation of ethyl 2,5‐dimethylfuran‐3‐carboxylate (3), 2,5‐dimethylfuran‐3,4‐dicarboxylic acid (4), and diethyl 2,5‐dimethylfuran‐3,4‐dicarboxylate (5) by treatment of diethyl 2,3‐diacetylsuccinate (2) with aqueous HCl is reported. The reaction is performed under organic solvent free conditions from a readily available cheap starting material. J. Heterocyclic Chem., (2009).
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