The article presents Synthesizing Allyl isorhodanate by using microwave energy withmethylic alcohol as solvent.
介绍以
为
剂,利用微波能来合成异硫氰酸烯丙酯的新方法。
The article presents Synthesizing Allyl isorhodanate by using microwave energy withmethylic alcohol as solvent.
介绍以
为
剂,利用微波能来合成异硫氰酸烯丙酯的新方法。
Often used in combination with Diacetyl and certain Diketones (Hexane-,Pentanedione).
名称:
乙酰
,乙偶姻,3-羟
-2-丁酮,醋嗡.
A simultaneously potentiometric titration method for determining benzaldehyde and benzoic acid in electrosynthesis products was reported.
采用电位滴定法测定
苯电合成产物中的苯
醛和苯
酸,研究了盐酸羟胺用量、苯
和
苯含量对测定的影响。
Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.
二茂铁
苯

与三氟化硼-乙

在二氯
烷中作用,形成二茂铁苯

碳正离子。
The relative mass correction factors of methyl alcohol, glycide, glycerol, and glycerol carbonate with different concentrations were investigated.
摘要考察了不同组成浓度下
、
水甘油、甘油和甘油碳酸酯体系相对校正因子的变化。
The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis.
介绍用

解法把聚酯或共聚酯解聚成二元酸二
酯和二元
。
The fifteen drums of methyl alcohol, in addition to loose lids, are bulging. You might as well recooper them.
这15桶
除盖子松外,还鼓胀了,你们不妨重修一下。
Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.
以α呋喃
和丙酰氯为原料,以六氢吡啶为催化剂,无水碳酸氢钠为缚酸剂合成了α呋喃
丙酸酯。
The catalysts and reaction conditions have been studied for esterinterenange between propenyl carbonate and methanol to produce dimethyl carbonate (DMC).
研究了碳酸丙烯酯和
经酯交换制备碳酸二
酯的催化剂及反应工艺条件。
The preparation of hydroxyacetone was studied by esterification of chloroacetone with sodium formate and alcholysis of acetonyl formate with methanol.
以一氯丙酮、
酸钠和
为原料经酯化与
解两步反应合成羟
丙酮,研究了反应条件对相转移催化酯化以及
解反应蒸馏过程的影响。
The article has introduced the method such as methanol, ethanol, ethylene glycol, pointing out synthol is the new raw material of oildom.
介绍了由合成气为原料制取
、乙
、乙二
等产品的方法,指出了合成气是石油化工的新原料。
Different solvent extractions of Spora Lygodii were obtained using methanol,chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra.
以
、氯仿、石油
为提取
剂,提取中药材海金沙得到海金沙不同
剂提取物,采用红外光谱(FT-IR)图谱鉴别法对提取物进行实验。
Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.
以7-乙
色
和3-氧代戊酸
酯为起始原料,以
为
剂,合成了依托度酸.采用混合
剂对粗品进行精制,得到了高纯度的依托度酸.
Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate.
约有30种化合物已从绿茶的香气中鉴别出来,其中主要的有苯
、苯乙
、已烯
、沉香
、香茅
和
水杨酸酯。
It exists the option of an alkaline or a neutral cooking to produce bleachable paper pulp, and of acid hydrolysis of the straw to produce furfural and fermentable pentoses to produce methanol.
在生产漂白浆的工艺条件是可以选择的如碱法,中性蒸煮,而且利用酸法水解草类原料可以生产糠醛和发酵戊糖生产
.
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