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- 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。
- P hydroxy benzeneacetamide is prepared from benzylcyanide after a series of organic reactions such as nitration, hydrolysis,reduction and so on. 以苯乙腈为原料,经过硝化、水解、还原、重氮化和水解、酯化和氨化制备了对羟基苯乙酰胺;
- 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。
- Keywords Siphonostegia chinensis;Isoferulic acid;1R;2R;4R trihydroxy p menthane;trans p hydroxycinnamic acid; 北刘寄奴;异阿魏酸;1R;2R;4R-三羟基薄荷烷;反式对羟基桂皮酸;
- 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。
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- 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。
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- trans-p-hydroxy cinamic acid 反式对羟基桂皮酸
- 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。
- But "trans fat is not the same thing at all. 但“转化油却完全不同。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- DISCONNECT THE TRANS RANGE SENSOR (TRS) CONNECTOR. 断开变速箱范围感知器(TRS)接头。
- The worker's overalls were badly burned by acid. 这位工人的工作装被酸腐蚀得很厉害。