紫罗兰酮

基本解释 (translations)

ionone

与紫罗兰酮相关的网络例句 [注：此内容来源于网络，仅供参考]

The condensation reaction of citral with acetone catalyzed by aqueous sodium hydroxide solution to give pseudoionone was studied in detail.

前言 丙酮和柠檬醛在氮氧比钠水溶液的催化作用「生成假性紫罗兰酮是国内外应用得较为f一泛的合成紫罗兰酮的方法。

Then,the oxidation ofβ-ionone catalyzed by CMPS-Co_2 has been performed,andβ-ionone was oxidized to 4-oxo-β-ionone as the main product,and the influence of a series of different conditions for the reaction was also investigated.

首先将催化剂CMPS-Co_2应用于β-紫罗兰酮的催化氧化，主要得到4-氧代-β-紫罗兰酮，并考察了不同反应条件对β-紫罗兰酮选择性氧化的影响。

However, only β-ionone replaced the bis-ANS of MmedCSP1 by 50%, and the binding constant was 16.89 μmol/L.

但只有脂类化合物β-紫罗兰酮能在浓度为1mmol/L下将bis-ANS从MmedCSP1中替换50%，β-紫罗兰酮与MmedCSP1的结合常数为16.89μmol/L。

Ionone was synthesized from Litsea cubeba oil and lemen oil ,and condition of condensation,cyclization and purification of product was studied.

以山苍子油、柠檬草油为原料合成紫罗兰酮，研究了缩合反应、环化反应、产品精制的工艺条件；并缩合反应中，柠檬醛的转化率为99%以上，产品得率95%；环化反应中，假性紫罗兰酮的转化率98%以上，产品得率90%。

Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.

研究结果表明：氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代－β-紫罗兰酮和5，6-环氧－β-紫罗兰酮，经重结晶和硅胶柱层析分离，纯度高于98%；4-氧代－β-紫罗兰酮的有利合成条件是反应温度为45℃，反应时间为24h，溶液的pH值为1~3，反应物配比n：n(NaClO3)：n为20：100：3，最佳收率为53.5%；5，6-环氧－β-紫罗兰酮有利的合成条件是反应温度为40℃，反应时间为24h，溶液的pH值为3，反应物配比n：n(NaClO3)：n为20：120：5，其收率为25.4%；未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。

Iris raldeine is a mixture for variety Isomethyl Ionone isomers with multi-notes, except for its mild green sweet character; it also has a unique iris-like powder note, together with a very slight leather feeling.

香气描述这是一个具有多韵复合特征的异甲基紫罗兰酮的混合物，除了其清甜柔美的花香以外，与市售的异甲基紫罗兰酮相比，它更多了一种独特的鸢尾粉香，并略带皮革香气。

During the reaction, a by- product, shown as formula below, is formed at the same time as the pseudo-ionone, because of an impurity in the citral, thereby resulting in a mixture of pseudo- ionone and formula, referred to herein as a pseudo- ionone mixture or as crude pseudo-ionone.

假性紫罗兰酮的制备柠檬醛和丙酮的下列反应：这种反应通常是进行的温度面向对象之间的1000长在反应，1分产品，如公式所示以下，在形成同时，伪酮，因为有一个杂质在柠檬，从而在一个假性和公式混合物产生的，下称一假性混合物或原油伪紫罗兰。

The author has studied the kinetics of hydrogenation of a,β-unsaturated aldehydes andketones such as cinnamaldehyde and 2-butylene cyclopentanone,β-ionone over amorphousalloy NiB catalyst at atmospheric pressure of H2 as well as effects of reaction conditions onthe kinetics.

作者以肉桂醛和2-亚丁基环戊酮、β-紫罗兰酮为代表重点研究了非晶态NiB催化α，β-不饱和醛酮常压下选择加氢的反应动力学。常压下该反应是准一级反应。

A series of L-histidine Schiff bases that include Sal-His (H2L^1), Br-Sal-His(H2L^2), NO2-Sal-His (H2L^3) and their Cu complexes were synthesized, and the catalytic behavior of Schiff-base-Cu for the oxidation of β-ionone to 4-oxo-β-ionone as well as the effects of substitutents on these properties were examined.

合成了芳环上含不同取代基的Schiff碱配体（水杨醛缩组氨酸(H2L^1)、5-溴水杨醛缩组氨酸(H2L^2)、5-硝基水杨醛缩组氨酸(H2L^3)及其铜配合物，研究了其作为催化剂应用于催化分子氧氧化β-紫罗兰酮制备4-氧代－β-紫罗兰酮中的行为。

As shown by the result, the biomass and astaxanthin content of oceanic red yeast was reduced due to the presence of β-ionone which inhibited the synthesis of carotenoids. The lethality rate of oceanic red yeast would attained 92.3% if 370 mg/L of the β-ionone concentration was contained in the plate medium. The oceanic red yeast mutated by ethyl methane sulfonate was cultured on plate medium containing 370 mg/L of the β-ionone. 200 mutants were randomly screened, positive mutants with increased the biomass, astaxanthin volumetric yield and astaxanthin specific yield accounted for 18% of the total strain, the mutants with higher biomass, astaxanthin volumetric yield and astaxanthin specific yield higher occupied 22.5%, 45% and 46%, respectively.

实验结果表明，在β-紫罗兰酮存在的情况下，由于类胡萝卜素合成受到抑制，海洋红酵母的生物量和虾青素合成量都减少；当平板培养基中β-紫罗兰酮浓度达到370 mg/L时，海洋红酵母的致死率为92.3%；在这种平板培养基上涂布经甲基磺酸乙酯诱变的海洋红酵母，随机筛选200个菌落，结果表明生物量、虾青素体积产率和细胞产率均有所提高的正突变株占18%，生物量、虾青素体积产率和细胞产率的单项指标有所提高的正突变株分别占22.5%、45%和46%。

与紫罗兰酮相关的网络解释 [注：此内容来源于网络，仅供参考]

ionone：紫罗兰酮

β-紫罗兰酮,(ionone)一种萜,分子式C13H20O. 它存在于Boronia megastigma精油中,为α-和β-紫罗兰酮的混合物,紫罗兰酮为浅黄色粘稠液体. α体具

iso-mythyl ionone：异甲基紫罗兰酮

iso-merizing reactor 异构反应器 | iso-mythyl ionone 异甲基紫罗兰酮 | iso-niazid sodium methane sulphonate 异烟钠甲烷磺酸钠

methyl ionone：甲基紫罗兰酮

methyl iodide 碘甲烷 | methyl ionone 甲基紫罗兰酮 | methyl isobutyl carbind 甲基异丁基甲醇

Alpha-Isomethyl Ionone：异甲基紫罗兰酮,香料

Cinnamyl Alcohol:肉桂醇,香料 | Alpha-Isomethyl Ionone:异甲基紫罗兰酮,香料 | Hydroxycitronellal:羟基香茅醛,香料

Ahpha-isomethyl ionone：异甲基紫罗兰酮,香料

Imperata cylindrica extract/Imperata cylindrica root extract:白茅草萃取,非洲天然植物,保湿效果不错 | Ahpha-isomethyl ionone:异甲基紫罗兰酮,香料 | Carbomer;胶质基质

ionone derivatives：紫罗兰酮衍生物

甲壳素衍生物:Chitin derivatives | 紫罗兰酮衍生物:ionone derivatives | 金刚烷衍生物:adamantane derivatives

ipecac：吐根(日本)

紫罗兰酮 ionone | 吐根(日本) ipecac;ipecacuanha;Urogoga ipecacuanha.J.Baill;Cephaelis ipecacuanha | 吐根素 ipecine;emetine

ipecacuanha：吐根(日本)

紫罗兰酮 ionone | 吐根(日本) ipecac;ipecacuanha;Urogoga ipecacuanha.J.Baill;Cephaelis ipecacuanha | 吐根素 ipecine;emetine

Cephaelis ipecacuanha：吐根(日本)

紫罗兰酮 ionone | 吐根(日本) ipecac;ipecacuanha;Urogoga ipecacuanha.J.Baill;Cephaelis ipecacuanha | 吐根素 ipecine;emetine

ionones：紫罗酮

ionone 紫罗兰酮 | ionones 紫罗酮 | ionopause 电离层顶