Synthesis of 3 or 5[14C] 4-butyl-1, 2-di
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S. Stavchansky; H. B. Kostenbauder
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Article
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1972
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John Wiley and Sons
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French
⚖ 136 KB
## Abstract The condensation of 1 or 3 [^14^C] n‐butylmalonate diethyl ester (III) with hydrazobenzene (IV) yields up to 90 per cent of 3 or 5 [^14^C] 4‐butyl‐1, 2‐diphenyl‐3, 5‐pyrazolidinedione, if n‐butyl alcohol is used as a solvent and the corresponding sodium alcoholate as a condensing agent