ketones

By GC-MS analysis it is observed that ketones were transformed into the corresponding alkyl alcohol, methoxyl content was relatively high in the phenolic, and a small amount of cyclohexene is formed.

通过GC-MS分析发现，酮类转化为相应的烷基取代醇，酚类中甲氧基含量相对较高，有少量环己烯生成。

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Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium reagent isand the yield of reaction is 60 %.

通过锂试剂的方法,合成了三氟甲基苯基环己基酮化合物,反应产率达到60%.

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Results show that the essential oils of rhodiola crenulata mainly fatty acid, terpene, alcohol and a small amount of esters, ketones, aldehydes, paraffin, phenols and other ingredients.

结果表明，大花红景天的挥发油主要是脂肪酸类、萜类、醇类及少量酯、酮、醛、烷烃、酚类等成分。

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Friedel-Crafts acylation is one of the most important synthetic reactions for the preparation of aromatic ketones, which are widely used as intermediates in fine chemicals and pharmaceutical industries.

芳酮类化合物是重要的精细化工和医药中间体，Friedel-Crafts酰基化反应是合成芳酮类化合物的最重要的方法。

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Synthesis of bis ( indolyl) methanes via electrophilic substitution reactions of indoles with aromatic aldehydes and ketones catalyzed by aminosulfonic acid was carried out in 23-96% yield at 30~ 38 ° C in EtOH aqueous solution under ultrasound irradiation.

超声辐射下在30～38℃的乙醇水溶液中，氨基磺酸催化吲哚与芳香醛或酮反应合成二吲哚甲烷，产率23～96%。

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Infinite Dilution Activity Coefficients of Ketones in Sodium Oxalate Water Solution

酮在草酸钠水溶液中的无限稀释活度系数

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These reactions are therefore used to discern between ketones and aldehydes.

这些化学反应因此被用来区分醛类和酮类.

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The development in the oxidation of olefins to ketones catalyzed by palladium compounds was reviewed.

本文系统地评述了钯配合物催化烯烃氧化合成酮类物质的研究进展.

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A Significant Pathway for the Reactions between Grignard Reagents and Ketones-Single Electron Transfer Process

格氏试剂与酮反应的一个重要途径&单电子转移

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Synthesis of α, β-Unsaturated Ketones via Telluronium Ylide

用碲Ylide合成α，β-不饱和酮

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Limitedly resistant to vegetable oil and strong solvents , such as ketones and esters.

但不耐无机酸 、 碱及强氧化物溶液.

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Friedel-Crafts acylation is important and fundamental organic reactions for preparing aromatic ketones.

Friedel-Crafts酰基化反应是一类重要的基础有机反应，是合成芳香酮的主要反应。

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The selective oxidations of alcohols to corresponding ketones by ammonium chlorochromate were described in this paper.

用氯化铵三氧化铬可以较高的产率将仲醇选择性氧化生成相应的酮.

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Vary thiazole-ketones is a kind of broad-spectrum efficient industrial sterilization Fungicides.

异噻唑啉酮类化合物是一类 广谱 高效的工业杀菌防霉剂.

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The keto form predominates in many aldehydes and ketones, the enol form in phenols.

在许多醛和酮中酮基都是最主要的组分。

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The thesis investigates aldehydes and ketones in surface water andwater by four aspects as follows.

本文主要分为四部分对水体中的醛酮类化合物进行了研究:第一部分提出了醛类化合物的危害,来源.

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REDOX Relationships amongst Alcohols , Aldehydes and Ketones and Carboxylic acids.

醇, 醛与酮和羧酸之间的氧化还原关系.

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Mixture of high boiling ketones, aromates, and esters.

高沸点之酮类 、 芳香族类 、 脂类之混合物.

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Up to now, the methods for preparing aromatic ketones still involve homogeneous metal chlorides or protonic acid used as catalysts in batch reactors via Friedel-Crafts acylation in industry.

目前，工业上通过Friedel-Crafts酰基化反应制备芳酮类化合物的工艺仍然是以均相的金属氯化物或质子酸等为催化剂，采用釜式反应器。

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Chiral carbonyl iron systems have seldom been used in asymmetric transfer hydrogenation of aromatic ketones.

手性羰基铁络合物很少被用于芳香酮的不对称氢转移氢化.

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The ee values of the final products were very close to those of α-hydroxy ketones, which indicated that no racemization occurred in the substitution.

最终产物的ee值与中间体α-羟基酮十分接近，表明在所发生的亲核取代反应中基本没有消旋化得现象发生。

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The keto form predominates in many aldehydes and ketones , the enol form in ph enols.

在许多醛和酮中酮基都是最主要的组分.

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Synthetic Method Introduction of α, β-Unsaturated Ketones from β-Keto Carboxylates by Palladium Catalyst

钯催化β-酮酸酯脱羧制备α，β-不饱和酮的方法介绍

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The process of burning fat produces ketones, which some claim have an appetite-suppressing effect.

燃烧脂肪的过程会产生酮, 而酮据说有抑制食欲之效.

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A series of α,β unsaturated ketones and esters have been synthesized by Knoevenagel reaction of aldehyde with carbonyl compounds which have active methylene group in the presence of tellurium(ⅳ) chloride in excellent yields.

用TeCl4催化含有活泼亚甲基的羰基化合物与醛的Knoevenagel反应，合成了一系列α，β－不饱和酮或酯，收率最高达95%。

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Terpenoids and volatile plant oils elicited the greatest mean EAG responses, followed by ketones, alcohols, esters and amines.

萜类化合物和挥发性植物油类诱发EAG反应的作用最强，其次是酮、醇、酯、胺类化合物。

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The Friedel-Crafts acylation is one of the most important approaches to synthesize aromatic ketones and has been widely used in the production of fine chemicals and pharmaceutical intermediates.

傅克酰基化反应是合成芳酮的重要途径，广泛应用于精细化学品和医药中间体的合成。

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Part 2: Titanium trichloride in EtOH or H2O can be reduced by Al to the corresponding low valent titanium complexes, which can reduce some aromatic aldehydes and ketones to the corresponding pinacols in 35-83% yields under ultrasound irradiation.

第2章：超声辐射下在乙醇或水溶液中，由铝粉-三氯化钛还原体系诱发芳香醛酮还原偶联，片呐醇的收率为35~83%。

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Friedel-Crafts Acylation Reactions Catalyzed by Trifluoroacetic Anhydride-Synthesis of 4-Ethyl-2,5-dimethoxyphenyl Alkyl Ketones

三氟乙酸酐催化的Friedel-Crafts酰化反应&4-乙基-2,5-二甲氧基苯基烷基酮的合成

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This section focuses on pyrazole ketones, indole acetic acids, aryl alkyl acids non-steroidal anti-inflammatory drugs.

本节重点介绍吡唑酮类、邻氨基苯甲酸类 、 吲哚乙酸类 、 芳基烷酸类及其他结构类型的 非 甾体 抗炎 药.

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