查询词典 formate

Keywords Hydrolysis of methyl formate;Solid superstrong acid catalyst

甲酸甲酯水解；固体超强酸催化剂

Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用&一勺烩&方法，以4-羟基苯甲腈为起始原料，首先与硫氢化钠和无水氯化镁在N，N-二甲基甲酰胺中反应，所得中间体不经分离，直接加入2-氯乙酰乙酸乙酯进行环合反应，得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（2）；然后通过六亚甲基四胺/三氟乙酸进行Duff反应，得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（3）；再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。

The lethal effects of ethyl formate on the eggs,early larvae,late larvae,pupae and adults of Tribolium castaneum were systematically studied under laboratory conditions with EtF fumigation with different dosages,treatment duration and temperature.

在不同的药剂浓度、处理时间和温度下系统研究甲酸乙酯对赤拟谷盗T.castaneum卵、低龄幼虫、高龄幼虫、蛹以及成虫的熏蒸致死作用，结果表明处理时间和温度显著影响甲酸乙酯对赤拟谷盗各虫态的熏蒸致死效果。

The production technology of triethyl ortho - formate as medicine intermediate is reviewed.

综述了医药中间体原甲酸三乙酯的生产工艺，重点介绍了二步法、一步法、氢氰酸法、酯交换法和相转移催化法的合成原理与生产工艺，并对这几种生产工艺进行了评述。

Can you also provide me with a full list of Vegetable that you can offer in this diced formate?

你方能否也提供一份完整、以切片排列的蔬菜清单呢？

This article discussed the influence factors of productivity of formic acid such as the mol ratio of sodium formate and phosphoric acid, the addition of phosphorus pentoxide, vapouring temperature.

对原料配比、五氧化二磷加入量、蒸馏温度对甲酸产品浓度、产率的影响进行了实验。

The results showed that the ultimately productive rate of formic acid reached 95.75% when the mol ratio of sodium formate and phosphoric acid was 1:1.30, the quantity of phosphorus pentoxide was 35.73 g, vapouring temperature was 115℃.

实验结果表明：在一定实验体系中，甲酸钠与磷酸摩尔比为1：1.03、五氧化二磷加入量为35.73 g、蒸馏温度为115℃时，甲酸最终浓度可达到95.75%。

On the basis of data of esterification between benzyl chloride and sodium formate with phase-transfer catalyst, three kinetics models were investigated, using the experimental data to validate the model, and the parallel-consecutive-reversible reaction network is determined.

实验测定了氯化苄与甲酸钠相转移催化酯化的动力学数据，对三种可能的动力学模型进行了分析比较，最终确定为平行-连串-可逆反应网络。

The optimal esterfication reaction conditions as following, the esterification temperature is 115℃, the initial mole ratio of benzyl chloride to sodium formate is 1:1, the volume ratio of water to benzyl chloride is 1:1, and the catalyst amount is 2% according to the quantity of benzyl chloride.

确定最佳的酯化工艺条件为：温度115℃，氯化苄与甲酸钠的摩尔比1：1，氯化苄与水的体积比1：1，催化剂量为氯化苄重量的2%。

Calcium caseinate calcium formate calling card calvin klein camcorder accessory cameras camlet sock camping light "There are only two creatures," says a proverb,"who can surmount the pyramids—the eagle and the snail."

俗话说：&能登上金字塔的生物，只有两种——鹰和蜗牛。&

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？