Dicarbonyl compounds in wine had an important effect on flavor.
酒类中双羰基化合物对其风味有着重要影响。
For the first part, we stressed reactions of sulphoxide with 1,3-dicarbonyl compounds promoted by Cu(OAc)2·H2O, 2,2′-biimidazole and iodobenzene diacetate.
第一部分为二醋酸碘苯、二价铜离子及联咪唑促进下的1，3-二羰基化合物与亚砜的反应研究。
Recent developments making use of chiral auxiliaries have put forward the versatility of procedure for the asymmetric synthesis of linear and cyclic 1,4-dicarbonyl compounds.
近期进展是利用手性辅助试剂，不对称合成链状和环状的1，4-二羰基化合物。
Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.
本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物，并对它们进行了元素分析和红外光谱测定。
Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.
本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物，并对它们进行了元素分析和红外光谱测定。
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