查询词典 furoin

Furoin was synthesized with furfural as raw material in the presence of Vitamin B1(VB1) as a catalyst.

以糠醛为原料，经维生素B1(VB1)催化合成糠偶姻。糠偶姻与不同的酰氯反应生成糠偶姻单酯。

The monoesters of furoin were synthesized by esterification of corresponding the acyl chloride with the furoin.

糠偶姻单酯在醋酸铵和醋酸作用下合成了新化合物2-取代－4，5-双恶唑。

The yields of compounds 1, 2, 3, 4, and 5 based on furoin were 99.3%, 96.5%, 98.0% 99.4% and 98.7%, respectively.

醋酸糠偶姻酯(1)、月桂酸糠偶姻酯(2)、苯甲酸糠偶姻酯(3)、α-呋喃甲酸糠偶姻酯(4)和3-α-呋喃丙烯酸糠偶姻酯(5)的收率以糠偶姻计算，分别为99.3%、96.5%、98.0%、99.4%和98.7%。

Furoin was synthesized from furol with VB1 as the catalyst,which was then reacted with acetyl chloride, lauroyl chloride ,benzoyl chloride,α-furoyl chloride and 3-α-furyl acryloyl chloride,respectively;corresponding monoester compounds of furoin were synthesized in THF in the presence of sodium hydroxide under reflux.

以糠醛为基础原料，经维生素B1催化合成糠偶姻，再由糠偶姻分别和乙酰氯、月桂酰氯、苯甲酰氯、α-呋喃甲酰氯和3-α-呋喃烯丙酰氯反应，在NaOH/无水THF体系中，于水浴回流条件下合成了相对应的糠偶姻单酯类化合物。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。