The reaction of ethyl 2-oxocyclopentanecarboxylate (I) with ethyl 2-(4-chloromethylphenyl)propionate (II) by means of KOH in hot DMF gives ethyl 2-[4-(1-ethoxycarbonyl-2-oxocyclopentan-1-ylmethyl)phenyl]propionate (III), which is then hydrolyzed anddecarboxylated by treatment with 47% HBr in refluxing dioxane
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医è¯åŽŸæ–™æ´›ç´¢æ´›èŠ¬é’ çš„åˆæˆæ–¹æ³•
<edit by="goncin" date="2007-11-30"> Corrected polymer names after caspertavernello's advice. <edit>
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