Patent ID: 7456295

Claim:
A process for preparing 1,3-Dithien-2-yl-2,2-diethylpropane-1,3-dione (DMDTPy) comprising: dissolving 2-bromothiophene in dry diethyl ether to form a first composition; dissolving n-butyl lithium in hexanes to form a second composition; combining said first composition and said second composition to form a third composition; stirring said third composition for a predetermined time, allowing contact of reactants, to form a fourth composition; dissolving ZnCl 2 in ether to form a fifth composition; adding said fifth composition to said fourth composition to form a sixth composition; warming said sixth composition to room temperature to form a seventh composition; refluxing said seventh composition for a predetermined time, allowing further contact of reactants, to form an eighth composition; cooling said eighth composition to room temperature to form a ninth composition; adding tetrakis-(triphenylphosphine)palladium (0) to said ninth composition to form a tenth composition; adding dimethyl malonyl chloride to said tenth composition to form an eleventh composition; refluxing said eleventh composition for a predetermined time with stirring, allowing further contact of reactants, to form an twelfth composition; mixing said twelfth composition with saturated aqueous sodium bicarbonate to form a two-phase mixture having an aqueous phase and a first organic phase; separating said first organic phase from said aqueous phase; washing said first organic phase with brine to form a two-phase mixture having a brine phase and a second organic phase; separating said second organic phase from said brine phase; drying said second organic phase; removing the solvent from said second organic phase to form a residue containing 1,3-Dithien-2-yl-2,2-dimethylpropane-1,3-dione (DMDTy); extracting DMDTPy from said residue.