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- Propyl malonic acid and isopropyl malonic acid were prepared,and their structure was confirmed by 1 HNMR、 13 CNMR and LC/MS. 以丙二酸二乙酯和卤代烷为原料,合成了丙基丙二酸和异丙基丙二酸,并用1HNMR、13CNMR谱和液相色谱质谱联用证实了其结构。
- Microwave irradiation was used to the Knoevenagel-Doebner synthesis of cinamic acid from benzaldehyde and malonic acid using pyridine as a catalyst. 结果表明,无溶济法微波辐射合成肉桂酸操作简便、反应迅速、收率较高,具有一定的应用价值。
- Microwave irradiation was used to the Knoevenagel-Doebner synthesis of cinamic acid from benzaldehyde and malonic acid using pyridine as a solvent and aniline as a catalyst. 研究了微波辐射下肉桂酸的 Knoevenagel-Doebner合成新方法。
- Huang,X., Liu,Z.-X.,"Solid-Phase Synthesis of 4 (1H) ?Quinolone and Pyrimidine Derivatives on a new Scaffold-Polymer-Bound Cyclic Malonic Acid Ester", J. Org. Chem., 2002, 67 (19), 6731-6737. 国家自然科学基金面上重点项目：“丙二酸环酯聚合物试剂参与的杂环化合物固相合成”（2001-2003）。
- Six carboxyl acids DEMB was produced with Michael Reaction using triethylamine as alkaline catalyst and solvent, malonic acid and itaconic acid as raw materials. 以三乙胺为催化剂和溶剂,衣康酸和丙二酸为原料,采用迈克尔加成反应合成了含有6个羧基的多元羧酸DEMB。
- A new process has been studied to synthesize malonic acid from diethyl malonate through hydrolysis reaction and catalyzing by 732 type cation exchange resin. 用732型阳离子交换树脂催化水解丙二酸二乙酯制取丙二酸,考察了反应温度、反应时间、水与丙二酸二乙酯的质量比、丙二酸二乙酯与树脂质量比等工艺条件对收率的影响。
- The second decarboxylation of malonic acid in aldol condensation 丙二酸发生羟醛缩合时的二次脱羧反应
- Keywords Pyrimidine;O-ethylisourea;Malonic acid diethyl ester; 嘧啶;氧乙基异脲;丙二酸二乙酯;
- Keywords malonic acid;aldol condensition;second decarboxylation; 丙二酸;羟醛缩合;二次脱羧反应;
- Keywords Phenylethyl Malonic Acid;Diethyl Malonate; 苯乙基丙二酸;丙二酸二乙酯;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
