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KMID : 0370219740180020125
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Yakhak Hoeji
1974 Volume.18 No. 2 p.125 ~ p.132
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Studies on the Condensation with Malonates and Urea
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국채호/Cook CH
조윤상/주상섭/Cho YS/Jew SS
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Abstract
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The by-products which were occurred in the synthesis of 5-ethyl-5-phenyl barbituric acid were isolated by column chromatography combined with gas-liquid chromatography and were identified by elemental analysis, ir, nmr and mass spectroscopy ; major by-products were ethyl alpha-phenylbutyrate and alpha-phenylbutyramide. The alkoxide which was known to be a condensation agent not only accelerated the condensation but also did the decarboxylation. And the entity concerned with the condensation with diethyl ethylphenylmalonate was not urea but N-monosodium urea.
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