氧丙环

Allyl glycidyl ether was synthesized from allyl alcohol and epichlorohydrin by phase transfer catalysis.

以烯丙醇和环氧氯丙烷为原料，采用相转移催化法，合成了烯丙基缩水甘油醚。

Sodium allylate was prepared from solid sodium hydroxide and allyl alcohol under mild conditions, and then the solid sodium allylate was reacted with epichlorohydrin in anhydrous system to produce allyl glycidyl ether in high yield and purity.

以固体NaOH和烯丙醇为原料在温和条件下制得烯丙醇钠，再以固体烯丙醇钠为原料，与环氧氯丙烷在无水条件下高产率地得到高纯度的烯丙基缩水甘油醚。

It is possible to achieve the conversion of allyl chloride and selectivity for epichiorohydrin as high as 99% on Ti-MWW.

在Ti-MWW催化剂上烯丙基氯的转化率和环氧氯丙烷的选择性都能达到99%以上。

The yield of allyl glycidyl ether can reach up to 96% at 30 ℃ for 3 h at a molar ratio of 1 to 1.5 of sodium allylate to epichlorohydrin.

醚化反应中固体烯丙醇钠与环氧氯丙烷摩尔比为1：1.5，在无水条件下于30℃反应3 h，烯丙基缩水甘油醚的收率达96%以上。

Three kinds of novel N-heterocyclic carbene allyl palladium complexes (Catalyst 1, 2 and 3) were synthesized. Norbornene polymerizations were carried out using three catalysts activated with methylaluminoxane in toluene.

研究了以3种N-杂环卡宾螯合烯丙基钯配合物1、2和3为催化剂，甲苯为溶剂，甲基铝氧烷为助催化剂催化降冰片烯的聚合。

Water,glycerin,rosa centifolia flower water,butylene glycol,centaurea cyanus flower water,peg-40 hydrogenated castor oil,propylene glycol,ppg-26-buteth-26,phenoxyethanol,methylparaben,sorbic acid,benzophenone-4,pentadecalactone,citrus aurantium dulcisoil,panthenol,menthyl lactate,sodium hydroxide,glycyrrhiza glabraroot extract,aesculus hippocastanumseed extract,citrus aurantium amaraoil,allantoin,limonnene,linalool,blue 1(ci 42090),yellow 5ci 19140

水，甘油，千叶蔷薇花水，丁烯二醇，矢车菊花水，PEG-40氢化蓖麻油，丙二醇，PPG-26-丁醇聚醚-26，苯氧乙醇，对羟基苯甲酸甲酯，山梨酸，二苯甲酮-4，环十五内酯，甜橙油，泛醇，乳酸孟酯，氢氧化钠，甘草根萃取，七叶树籽萃取，苦橙油，尿囊素，柠檬精油，芳樟醇，蓝，黄水：几乎所有护肤品成分第一位都是水。

At present, the industrial production of PO includes mainly Chlorohydrin process and Halcon process.

在本论文中，利用分子氧为氧化剂在几种银和铜催化剂上进行了丙烯环氧化反应的探索研究。

This invention discloses an intermolecular charge transfer chromogen with triphenylamine group, with a formula indicated by (1), wherein: R1 is hydrogen atom or methyl group or methoxyl group, R2 is hydrogen atom or 2-(5,5-dimethyl-3-vinylcyclohexenyl-2-enylidene)propanedinitrile group.

本发明公开的含三苯胺基团的分子内电荷转移生色团，具有式1所示的结构式，其中R 1 为氢原子或甲基或甲氧基，R 2 为氢原子或2-(5，5-二甲基-3-乙烯环己烯基-2-烯亚基)丙二腈基。

At 100℃ and 0.5 MPa for 2 h, the conversion of cumene hydroperoxide is about 65.0% and the selectivity for propylene oxide is 70.4%.

在100℃，0.5MPa的条件下反应2h，过氧化氢异丙苯的转化率为65.0%，环氧丙烷的选择性为70.4%。

For developing an immunoassay for multiple residues of pyrethroid pesticides, the hapten N-2- carbanmoyl-(3"-phenoxyphenyl) methyl 3-(2"-Cldoro-3",3",3"-trifluoropropenyl)-2, 2-dimethylcyclopropane- carboxylate was synthesized from cyanohydrin and 3-(2"-Chloro-3",3",3- trifluoropropenyl)-2, 2-dimethylcyclopropanecarboxylic acid via hydrolysis and esterification. The synthesis of the hapten was foundation of preparaing anti- cyhalothrin polyclonal antibodies.

为了制备对单一拟除虫菊酯高特异性的抗体，以菊酸和氰醇为起始原料，通过水解、酯化反应合成了半抗原N-2-氨甲酰-(3-苯氧基苄基)甲基-3-(2-氯-3，3，3-三氟丙烯基)-2，2-二甲基环丙烷羧酸酯，为进一步制备抗三氟氰菊酯的特异性抗体奠定基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。