Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor.
采用甲硫醇、呋喃硫醇、吡嗪、反-2，4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料，可以调配出香气逼真的炖牛肉香精。
M-chlorocresol or 3-hydroxy-4-chlorophenol on treatment with p-nitrobenzoyl chloride was prepared and conyerted into substituted p-nitrobezyl ketone.
制备了用对硝基苯甲酰氯处理的间氯甲酚或3-羟基-4-氯苯酚，并转化为取代的对硝基苯甲酮。
酮(8)易于获得。
But the yield of ketone is not always very high.
但出产量酮总不是非常高的。
Preparing alkenyl halide from aldehyde and ketone.
以醛酮为原料合成卤代乙烯类化合物。
It is soluble in aromatic, aliphatic, ester, and ketone solvents.
本树脂产品溶解于芳香类、脂肪类、酯类及酮类溶剂。
Research was performed on the synthesis process of raspberry ketone.
覆盆子酮的合成工艺路线研究。
Immersion service in aromatic or ketone solvents and strong oxidizing acids.
不宜在芳香族和酮类溶剂以及强氧化性酸的浸泡环境中使用。
Increased fat and protein breakdown leads to ketone production and weight loss.
脂肪和蛋白分解增加可导致酮的生成以及体重减轻。
The method is compatible with concentration detection of diethyl ketone in the air at a workplace.
本方法适用于工作场所空气中二乙基甲酮的浓度测定。
There is an important medical value of the Ketone and Terpene which are extracted from Ginkgo leaf.
银杏叶提取物的主要成分黄酮和萜类内酯有着重要的医学价值。
In addition, the oxidation of the side chain on alkybenzene is a promising route to get ketone product.
此外，乙苯及其衍生物的侧链亚甲基氧化制备芳酮的反应也具有很广阔的应用前景。
It was deduced from FTIR that the condensation reaction was caused by a reaction of ketone group with anhydride.
根据FTIR测定结果，推测在反应中可能发生酮与酸酐的缩合反应。
The reasons of containing water in solvent in ketone-benzol dewaxing unit and the disadvantageous influence are introduced.
介绍了酮苯脱蜡装置溶剂含水原因及对生产过程的不利影响。
Latex gloves are a better option for handling thinners with methyl ethyl ketone but for only a limited duration per glove pair.
乳胶手套是处理含丁酮稀释液更好的选择，但是每副手套只能在有限的时间内处理（丁酮）。
Novel synthetic methods for alkyl methyl ketone, symmetric diketone , long-chain diketone and macrocyclic ketone were provided.
利用二苯并咪唑盐与格利雅试剂的加成-水解反应，提出了长链二酮的新合成方法。
Improvement of synthesis process of methyl isopropenyl ketone was introduced, and the yields in different temperature was compared.
对甲基异丙烯基酮的合成工艺进行了改进，比较了在不同温度下，对醇酮中间体和脱水反应收率的影响。
In the second chapter, the mechanism of the gold-catalyzed cycloisomerization of bromoallenyl ketone was investigated and discussed.
在第二章中，通过理论计算对金催化的溴代连二烯酮环异构化反应的机理进行了研究和讨论。
A gas chromatographic method was developed to directly determine the enantiomers of acrylic ketone alcohol and acrylic ketone acetate.
建立了基于手性毛细管柱直接测定丙烯酮醇和丙烯酮乙酸酯对映体含量的气相色谱法。
The forming process of a thermoplastic Controllable Crosslinking Poly(Aryl Ether Ketone)(CCPAEK) matrix composite was reported in this paper.
报道了一种可溶性可控交联聚芳醚酮（CCPAEK）热塑性复合材料的制备方法。
The long-chain diketone described above was applied to the synthesis of macrocyclic ketone and a new method for macrocyclic ketone was reported.
本文还将长连二酮应用到大环单酮的合成当中，提出了一种大环单酮的新合成方法。
Chemicals in this group, such as acrylamide and methylvinyl ketone, also show up in car exhaust, cigarette smoke, industrial Settings, even French fries.
同组化学物质(如丙烯酰胺和甲乙烯酮)也存在于汽车尾气、二手烟、工业环境中，甚至炸薯条里也有。
At the same time, some other oxycompound groups, such as carbonyl group, aldehyde group and ketone group, appear or increase with temperature rising.
与此同时，醛、酮、酯类羰基、芳香酮、醛类羰基等类含氧基团或者从无到有，或者官能团数量不断增加。
The author presents a method preparing new ketone resin with rectification residue of cyclohexanone, which possesses excellent comprehensive property.
利用环己酮精馏残渣制备新型酮树脂，该树脂具有优良的综合性能。
It is the simple process and economical in using of the chemical materials of alcohol and ketone, and it has better efficiency economically and socially.
该法生产己二酸，工艺简单，节省醇、酮等化工原料，收到很好的经济效益和社会效益。
Preparation of methyl isobutyl carbinol(MIBC)was studied by catalytic hydrogenation of methyl isobutyl ketone(MIBK)in liquid phase on Raney nickel catalyst.
研究了以骨架镍催化剂液相催化加氢制备甲基异丁基甲醇的工艺。
Inject the methoxylamine group into the ketone group (esp. The steroid) in the organic synthesis uses for pharmaceutical and agricultural chemicals synthesis.
在有机合成中引入甲氧基胺基团到酮类（特别是甾族化合物）。用于医药和农药的合成。
Inject the methoxylamine group into the ketone group (esp. The steroid) in the organic synthesis uses for pharmaceutical and agricultural chemicals synthesis.
在有机合成中引入甲氧基胺基团到酮类（特别是甾族化合物）。用于医药和农药的合成。
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