环己烯

My company can provide pesticide, medicine, veterinary medicine intermediates, have 48 kinds of products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane Triethyl Citrate 1,2,3 - three Bromopropane 3 - Chlorine -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-C methyl 1,6 - dibromo-hexane 1 - bromo --4 - p-methoxy benzaldehyde o-bromo-acetic acid propyl bromide p-fluorotoluene dodecane four bromoethane of iodine bromide toluene tert-butane Tributyl Citrate 2 - bromo-p inter - Hydroxybenzaldehyde bromine butane 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide Cyclohexane Cyclopentane bran bromate bromide Malay Dibutyl Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) expressed the hope that customers contact us!

我公司可提供农药，医药，兽药中间体，有四十八种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1，2，3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)希望广大客户与我司联系！

Second, using DBU as the base for enolization of propargylic esters of unsaturated acids 18e-k, we developed a tandem Ireland-Claisen rearrangement /isomerization reactions. It has been shown that the reaction sequence affords triene molecules 42a-b and 43a-b in moderated to high yields. Interestingly, with allyl hexa-3,5-dienoates 18i-j as the substrate, the rearranged products underwent further aromatization to give uniquely substituted benzyl acids 44a-b.

其次，以含有活泼质子的烯酸炔丙酯18e-k为底物，在DBU为烯醇化碱、TMSCl为硅试剂的条件下，底物18e-h发生了Ireland-Claisen重排/异构化串联反应，得到完全共轭的三烯类化合物42a-b及43a-b；而以己二烯酸炔丙基酯18i-j为底物时，重排/异构化后的产物进一步发生电环化等反应最终得到芳构化产物——取代苯甲酸类化合物44a-b。

The effects of DCPD and adipic acid content on product properties are investigated and the properties of DCPD-type-UPR and 191# UPR are cont rasted.

考察了双环戊二烯、己二酸加入量对双环戊二烯型不饱和聚酯树脂性能的影响，并与通用191#树脂的性能进行了比较。

Water,c12-20 acid peg-8 ester,octyldodecanol,cetearyl isononanoate,butylene glycol,biosaccaride gum-1,peg-40 hydrogenated caster oil,ethylhexyl menthoxycinnamate,phenoxyethanol,potassium cetyl phosphate,macadamia ternifolia seed oil,dimethicone,carbomer,propylene glycol,glyceryl stearate,cocoglycerides,butyrospermum parkii,c12-13 alkyl lactate,methylparaben,benzophenone-3,pentadecalactone,sorbic acid,citrus aurantium dulcis oil,sodium hydroxyde,tocopheryl acetate,disodium edta,iris germanica root extract,retinyl palmitate,equisetum arvense extract,butylparaben,peg-8,propylparaben,ethylparaben,sodium hyaluronate,chlorhexidine digluconate,citrus aurantium amaraoil,tocopherol,ascorbyl palmitate,citric acid,ascorbic acid,limonene,linalool

水，c12-20 acid peg-8 ester，辛基十二烷醇，鲸蜡硬脂醇异壬酸酯，丁烯二醇，多醣物质，PEG-40氢化蓖麻油，4-甲氧基肉桂酸-2-乙基己基酯，苯氧乙醇，十六烷基磷酸钾，澳洲胡桃子油，地美司康，卡波姆，丙烯乙二醇，甘油硬脂酸，椰油脂酸甘油酯类，牛油果，c12-13烷醇乳酸酯，对羟基苯甲酸甲酯，二苯甲酮-3 ，环十五内酯，山梨酸，甜橙油，氢氧化钠，维生素E醋酸酯，乙二胺四乙酸二钠，鸢尾花萃取，维他命A酯，问荆萃取，对羟基苯甲酸丁酯，聚乙二醇- 8，羟苯丙酯，羟苯乙酯，透明质酸钠，洗必泰葡萄糖酸盐，苦橙油，维生素E ，维生素C棕榈酸酯，柠檬酸，抗坏血酸，柠檬精油，沉香醇水：几乎所有护肤品成分第一位都是水。辛基十二烷醇：界面活性剂、乳化剂、稠化剂，有一定刺激性

Various alcohols are tolerable under the present conditions including benzylic alcohols,allylic alcohols as well as simple aliphatic alcohols.

醇的范围非常广，二苯甲醇、1-苯乙醇、烯丙醇衍生物等含苄醇结构的地物能够以最高接近定量的产率得到产物。普通烷基醇如环己醇，甚至最简单的甲醇和乙醇也能顺利反应，产率中等。

OH radicals produced by ultrasound in aqueous solution attack phenolic cycle at adjacent or para position of the hydroxyl on phenol so that phenol is changed into small organic molecules such as muconic acid, maleic acid and ethane diacid. These small organic molecules will be oxidized to form carbon dioxide and water by.

苯酚超声降解的作用机理是，超声空化在水溶液中产生的·OH自由基进攻苯酚苯环上羟基的邻位或对位而使苯环断裂生成己二烯酸、顺式丁烯二酸和乙二酸小分子有机物而使苯酚得以降解，这些小分子有机物在·OH自由基的进一步作用下最终被氧化成CO〓和H〓O。

Thus, in order to attain acetal can be used as precursor of its matrix olefine aldehyde, 2-undecental glycol acetal was synthesized, and the corresponding optimum reaction conditions as: 2-undecental 0.2mol, glycol 0.3mol, cyclohexane as solvent, catalysed by vitamin C, the optium reaction time was 6h, its reaction yield could reach over 77.25%.

为了进一步探求效果更理想的前体化合物，本文继续合成了2-十一烯醛乙二醇缩醛，通过单因素优化实验得到最佳反应条件为：环己烷作溶剂，VC作催化剂，用量0.42%，醛醇物质的量之比0.2：0.3，反应时间6h，此条件下产品收率达77.25%。

The distribution patterns of alkyl cyclohexane,alkylbenzene,carotane,sterene and terpane compounds in surficial sediments from the Bransfield strait,Antarctica are studied.

本文研究了南极布兰斯菲尔德海峡表层沉积物中烷基环己烷、烷基苯、胡萝卜烷、甾烯和萜烷化合物的分布特征。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes were investigated in room temperature ionic liquids as reaction medium at 100-140℃ and 3-6MPa of CO.

首次在超强酸氯铝酸离子液体中实现了饱和烷烃的羰化反应。发现2，2，4-三甲基戊烷可直接与CO反应，产物叔丁基异丁基酮，叔丁基异丁烯基酮和3，3，5-三甲基环己酮。

In fact only by considering benzene to be a resonance hybrid comprising at least a pair of cyclohexatriene resonance structures can we come at all close to an accurate picture of the real molecule.

事实上，只有把苯看作是至少由一对环己三烯共振结构（叫做 Kekule 结构）组成的共振杂化体，我们才能全面接近真实分子的精确图像。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。