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- half amide of malonic acid 丙二酸半酰胺
- 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
- Study on the preparation process of malonic acid catalyzing by cation exchange resin 阳离子交换树脂催化水解法制备丙二酸工艺的研究
- In a moment they had disappeared amid of the gloom of the lawn . 片刻之间，他们已经在昏暗模糊的草坪上消失不见了。
- The crystalline amide of acetic acid, CH3CONH2, used as a solvent and wetting agent and in lacquers and explosives. 乙酰胺乙酸的晶体胺，CH3CONH2，用作溶剂和湿润剂，并用于油漆和炸药
- 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。
- This novel reaction can be used for effective preparation of asymmetric amide of squaric acid containing aryl and dimethylamino, methylamino, ethylamino. 该反应提供了制备既含芳胺基又含二甲胺基、甲胺基和乙胺基的不对称方酰胺的较为有效的方法。
- In a moment they had disappeared amid of the gloom of the lawn. 片刻之间，他们已经在昏暗模糊的草坪上消失不见了。
- 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。
- I apportioned half the property to each of them. 我把财产的一半分配给他们各人。
- He drank off the flagon of wine amid their cheers. 在他们的喝彩声中他喝了一大瓶酒。
- 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。
- The direct investment amid of transnational corporation of beautiful day two countries is in epochmaking position. 美日两国跨国公司的直接投资在其中则处于极重要的地位。
- She left amid a swarm of photographers. 她离开时一群摄影记者围着她。
- Still upgrade to carry out the course to the information system in the text amid of paraquinone... 文中还对信息系统升级实施过程中的应对措施进行了简要的探讨。
- The house has half an acre of lawn. 这座房子有半英亩草坪。
- He drank off a glass of beer amid their cheers. 在他们的欢呼声中，他把杯子里的啤酒一饮而尽。
- Theanine,the ethyl amide of glutamic acid,is the main amino acid in the fresh leaf and contributes 1 to 2 percent of the dried weight,but other amino acids arise during the early part of the processing. 茶氨酸是谷氨酸的乙酰胺，它是鲜茶叶中的主要氨基酸，占干茶叶重量的1~2%25，其它氨基酸则是在加工早期出现的。
