- 更多网络例句与烯酮类相关的网络例句 [注:此内容来源于网络,仅供参考]
-
First, a series ofα-oxo ketene dithioacetals were preparated on the basis of our recent work.
具体研究如下:1。在十分温和的条件下,合成了一系列α-羰基二硫缩烯酮类化合物。2。
-
Therefore it is very important to explore the feadibility of clean synthesis lf complex compounds from a-oxo ketene dithioacetals
因此,以a-羰基二硫缩烯酮类化合物为合成子,探索复杂化合物的绿色合成方法将具有重要意义
-
Oxo ketene dithioacetals are a kind of versatile intermediates in organicsynthesis. It can be widely used in forming aromatic and heterocyclic compounds.
α-羰基二硫缩烯酮类化合物是一类重要的有机合成中间体,广泛应用于芳环和杂环化合物的合成中。
-
From the view of structure,α-alkenoyl ketene dithioacetals contain divinyl ketones.
从结构上看,α-烯酰基二硫缩烯酮可以看作二烯酮类物质。
-
Hydroxyl ketene dithioacetals were treated under diversely catalyzed conditions, and a wide range of significant compounds and synthetic precursors thus were obtained.
羟基二硫缩烯酮类化合物可以通过各种不同的反应条件进行多种转化,能够获得许多有意义的化合物和合成潜体。
-
Besides, The reaction of aldehydes with dithioacetate enethiolates followed by alkylation effectively gives α-hydroxyl ketene dithioacetals.
此外,用醛与硫代羧酸硫酯反应再通过烷基化也可以有效地获得α-羟基二硫缩烯酮类化合物。
-
In the end, a Novel and facile method has been used to synthesize functionalized cyclopentadienes by Nazarov cyclization ofα-alkenoyl ketene dithioacetals under Vilsmeier conditions.
从合成的α-烯酰基二硫缩烯酮类化合物出发,经过Vilsmeier试剂作用下的Nazarov环合反应,合成了官能化环戊二烯类化合物。
-
Among the variousα-oxo ketene dithioacetals,α-alkenoyl ketene dithioacetals are easier to prepare and bear much more functionalities.
在众多的α-羰基二硫缩烯酮类化合物中,α-烯酰基二硫缩烯酮具有易于制备,官能团多等特点。
-
The Nazarov cyclization, a powerful tool for the construction of five-membered carbocycles from divinyl ketones and related compounds, has attracted increasing attention in recent years due to its wide applications in the synthesis of complex natural and unnatural products.
Nazarov环合反应是通过二烯酮类物质和类似化合物构建五元碳环的有效方法。由于该方法广泛地应用于复杂天然和非天然产物的合成,近年来引起人们的广泛关注。
-
Synthesis of organic sulfuric compounds in aqueous media is carried out by: using thio-olefin compounds with carbonyl compounds, acetal/keltone, hydrazone, oxime, osazone and enamine to synthesize mercaptal/keltone compounds in aqueous media; using thio-olefin compounds with alpha-hydroxyaldehyde/keltone or alpha-halogenated aldehyde/keltone to synthesize thia-olefin derivatives in a queous media; using thio-olefin compounds with alpha, beta-unsaturated hydroxy compounds, C-C treble bond, C-N treble bond, C-C double bond, N-N double bond, C-N double bond, C-S double bond, epoxy and its derivatives, aziridine and its derivatives, cyclopropane and its derivatives and halogenated carboxy to synthesize sulfoether compounds in a queous media.
含水介质中有机硫化合物的合成方法,本发明属于有机合成方法,用硫缩烯酮类化合物与羰基化合物、缩醛/酮、腙、肟、脎、烯胺在含水介质中合成缩硫醛/酮化合物,与α-羟基醛/酮或α-卤代醛/酮在含水介质中合成噻烯类衍生物,与α,β-不饱和羰基化合物、碳碳叁键、碳氮叁键、碳碳双键、氮氮双键、碳氮双键、碳硫双键、环氧乙烷及其衍生物、氮杂环丙烷及其衍生物、环丙烷及其衍生物、卤代烃等在含水介质,中合成硫醚化合物。
- 更多网络解释与烯酮类相关的网络解释 [注:此内容来源于网络,仅供参考]
-
allyl:烯丙基
在具有刚性结构的吗啡、吗啡喃类、苯吗喃类、14-羟基二氢吗啡酮等分子中,将氮原子上的甲基以3~5个碳的取代基,例如:烯丙基(allyl),环丙烷甲基(cyclopropylmethyl,CPM)或环丁烷甲基(cyclobutylmethyl,CBM)等取代,
-
caoutchouc:橡胶
多烯衍生物又可分为多烯烃,多烯醇,多烯酮,多烯烃环氧化物和其他类的多烯烃.除上述三萜,四萜类以外,还有其他多萜类化合物.这些成分为数不多,举例如下:橡胶(caoutchouc)存在于橡胶树,无花果的乳汁中,
-
methyl cyclohexanone:甲基环己酮
本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中脂环酮和芳香族酮类化合物[包括环己酮(Cyclohexanone)甲基环己酮(Methyl cyclohexanone)和异佛尔酮(3,5,5-三甲基-2-环己烯-1-酮,Isophorone)等]的浓度.
-
Galangin:高良姜精
主要功效成分有黄酮类化合物,包括白杨黄素(chrgsin)、山奈黄素(kaempferol)、高良姜精(galangin)、栎精(quercetin)等(约10%)、10-羟基-α-癸烯酸、萜烯类、HAD、王浆酸、有机酸、氨基酸(氨基酸食品)、酶类、维生素(维生素食品)、无机盐等共2
-
Caryophyllene:石竹烯
叶含挥发油 0.135~0.94毫升/100克. 其中对止咳、祛痰的有效成分为大牻牛儿酮(Gerrnacrone). 另含桉叶素、愈创木AO及石竹烯 (CaryoPhyllene)、芹子烷(Selinane)和葎草烯的氢化物 (C15H30, 即葎草烷 Humu-lane)等. 此外,叶中还含酚类等其他成分.
-
indoles:吲哚类
BR><BR>绿色(花椰菜、菠菜、芦笋、白菜、萼梨):类胡萝卜素、吲哚类(indoles)、萝卜硫素、异硫氢酸盐(isothiocy)、含硫有机化合物(面氨基硫、硫辛酸)、姜黄素、叶黄素、玉米黄质、叶酸、维他命C、类黄酮、萜烯类、多酚类<
-
Alkenes:烯類
(七)不溶於水、NaOH溶液和盐酸但溶於硫酸者:醇类、醛类、酮类、酯类、醚类(但含二个芳香族烃基醚类除外)、烯类(alkenes)、炔类(alkynes)和多烃基(polyalkyl)苯类;
-
Alkynes:炔類
(七)不溶於水、NaOH溶液和盐酸但溶於硫酸者:醇类、醛类、酮类、酯类、醚类(但含二个芳香族烃基醚类除外)、烯类(alkenes)、炔类(alkynes)和多烃基(polyalkyl)苯类;
-
Prenylated Flavonoid:异戊烯基黄酮类化合物
类黄酮3"-羟化酶基因:Flavonoid 3"-hydroxylase gene | 异戊烯基黄酮类化合物:Prenylated Flavonoid | 总能量:Total energy
-
terpenes:萜烯
银杏(ginkgo biloba)叶提取物EGb761是一组黄酮类物质(flavonoids)、heter0-sides和萜烯(terpenes)的混合物. EGb761的抗氧化作用是由于它的黄酮类物质. 已知黄酮类物质是z一.、.0H和RO.的清除剂. 它能防止膜的脂质过氧化,