氯酸酯

hydantoin was synthesized from diethyl malonate comprising condensation with 1, 2-dichloroethane, ammonolysis to diamide, Hoffmann degradation to give 5-cyclopropanespirohydantoin, and ring-opening with 40% hydrobromic acid.

以丙二酸二乙酯为原料，先与1， 2-二氯乙烷缩合生成1， 1-环丙烷二羧酸二乙酯，再经氨解生成1， 1-环丙烷二甲酰胺，然后在次氯酸钙溶液中进行Hoffmann降解成环生成5-环丙螺海因，最后在40%氢溴酸中开环得到5-溴乙基海因。

Methods Gelators of N-lauroyl-l-alanine methyl esterand N-lauroyl-l-alanine ethyl esterwere synthesized with l-alanine methyl ester,l-alanine ethyl ester and lauroyl chloride as materials.

方法以l-丙氨酸甲酯盐酸盐、l-丙氨酸乙酯盐酸盐和月桂酰氯为原料，合成月桂酰-丙氨酸甲酯凝胶因子及月桂酰-丙氨酸乙酯凝胶因子，采用IR、1H-NMR、MS对其结构进行表征，并对其熔点、热稳定性、在各种植物油中的最小胶凝质量浓度、相转变温度等基本性质进行了研究。

Water, Cyclomethicone, Glycerin, Sd Alcohol 40-B (Alcohol Denat.), Propylene Glycol, Melia Azadirachta Leaf Extract, Lecithin, Arctium Lappa Root Extract, Xylitol, Lactitol, Alpha-Glucan Oligosaccharide, Lactoferrin, Potassium Thiocyanate, Glucose Pentaacetate, Glucose Oxidase, Lactoperoxidase, Glycoproteins, Panax Ginseng Root Extract, Equisetum Arvense Extract, Hydrolyzed Milk Protein, Peg-8, Caprylyl Glycol, Sebacic Acid, Sodium Polyacrylate, Betula Alba Bark Extract, Cupressus Sempervirens Leaf Extract, Hamamelis Virginiana Extract, Avena Sativa Meal Extract, Humulus Lupulus Extract, Silk, Nylon-12, Polyacrylamide, Polymethyl Methacrylate, Butylene Glycol, Salicylic Acid, Lauryl Methacrylate/Glycol Dimethacrylate Copolymer, Tocopheryl Acetate, C13-14 Isoparaffin, Laureth-7, Triethanolamine, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Methylparaben, Fragrance, Titanium Dioxide

水，环甲硅脂，甘油，Sd Alcohol 40-B，丙二醇，印度楝树叶萃取，卵燐脂，牛蒡根萃取，木糖醇，乳糖醇，α-葡低聚糖，乳铁蛋白，硫氰酸钾，葡萄糖五乙酸酯，葡萄糖氧化酶，乳过氧化物酶，糖蛋白，人参根萃取，问荆萃取，水解牛奶蛋白，聚乙二醇-8，辛乙二醇，癸二酸，聚丙烯酸酯钠，白桦萃取，丝柏叶萃取，金缕梅萃取，燕麦萃取，啤酒花萃取，丝，尼龙－12，聚丙烯醯胺，聚甲基丙烯酸甲酯，丁二醇，水杨酸，甲基丙烯酸十二酯，醋酸盐维他命E，C13-14 异烷烃，月桂醇聚醚-7，三乙醇胺，山羊胶，丙烯酸/C10-30烷基丙烯酸聚合物，苯氧乙醇，氯苯甘醚，苯甲酸，羟苯甲酯，香料，二氧化钛

In this paper isopropyl -γ- chlorobutyrate was prepared from γ- butyrolactone by one - step. The effects of molar ratio of reactants, reaction temperature, reaction time on the yield of product were discussed, the optimum reaction condition was obtained.

一氯代丁酸异雨酯是合成新型拟除虫菊酯中间体环丙烷较酸及高效抗菌新药丙氟见酸和环丙氟院酸中间体环丙胺的重要原料［''］。

The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.

以氯乙酸和异丙醇为原料，磷钨酸铝作催化剂进行酯化反应，合成氯乙酸异丙酯。

With the yield of methyl monochloroacetate as evaluating standard,the synthesized condition of methyl chloroacetate was optimized through orthogonal experiment.

以氯乙酸母液和甲醇为基本原料，固载磷钨酸为催化剂，通过连续酯化的方法制备了氯乙酸甲酯；以氯乙酸甲酯的质量收率为基准，采用三因素三水平正交实验的方法对酯合成的条件进行了优化。

Meanwhile, the optimum operation conditions obtained by orthogonal experiment are as follows: microwave power is 585 W, irradiation time is 30min, the amounts of catalyst is 1.5% of feed stock, mole ratio of alcohol to acid is 1.5:1, the yield of isoamyl chloroacetate is 93.2% Comparing with conventional heating method, the heating time under microwave irradiation is less than 1/14 of the former.

最佳工艺条件为：微波功率585W，加热时间为25min，催化剂用量为2.0%，醇酸比为1.5：1，此条件下氯乙酸异戊酯的产率为93.2%。对比实验结果表明，微波辐射加热法合成氯乙酸异戊酯的反应速度至少是常规加热法的14倍。

In order to further understand combining characteristic of cyclohexyl methylphosphonofluoridate and isopropyl methylphosphonofluoridate and contribute more scientific data for its medical protection, the potency of inhibition of acetylcholinesterase activity induced by GF, GF+GB and the effects of reactivation by oximes pyramidoxime monohydrate(HI-6) and pyridine-2-aldoxime methylchloride(2-PAM-Cl) in rat brain were investigated with DTNB microanalysis in this study.

为进一步了解甲氟膦酸环己酯与甲氟膦酸异丙酯的联合特性，为制订医学防护措施提供更多的理论依据，用微量DTNB法对GF，GB和GF与GB混合对大鼠脑乙酰胆碱酯酶的抑制及肟类重活化剂酰胺磷定（HI-6）和氯磷定（2-PAM-Cl）的重活化作用进行了研究。

The preparation of esterified derivant : it is prepared by the esterifying reacting of above (3) product and 4g dodecylbenzene sulphonic acid heated in water bath at 40℃ within 30min.

聚环氧氯丙烷乙二醇哌啶接支酯化衍生物的制备：4g十二烷基苯磺酸于40℃水浴条件下聚环氧氯丙烷乙二醇哌啶接支衍生物进行酯化反应。

In order to check the corresponding compound at 31P NMR –45.4 ppm, stable pentacoordinate spirobicyclic 2-phenoxy-1,3-phenylene-dioxo-1,3,2-iminoacetoxyphosphoranes were synthesized through a new and efficient method whereby phosphorus pentachloride was displaced stepwise by catechol, N,O-bisamino acid and phenol, or catechol, phenol and N,O-bisamino acid, their 31P NMR chemical shifts are at about 31P NMR –45.0 ppm, the results showed that the compound 4 at 31P NMR –45.4 ppm was pentacoordinate phosphorane containing amino acid residue.

采用磷谱跟踪来研究上述成肽反应机理。例如在氮气保护下，0.1mmol O，O-亚苯基磷酰氯（1）和0.15mmol N，O-二苯丙氨酸（2）苯溶液加入0.6ml核磁管中，混合均匀，反应过程用磷谱检测。反应1分钟后，起始原料1(δp=19ppm)很快转变成N-磷酰苯丙氨酸的三甲基硅基酯（3）(δp=19.8ppm)，在8分钟内，3完全转变成苯丙氨酸磷烷4(δp =-45.4ppm)，同时出现环磷三酯（6）(δp=3.5ppm)。随着反应的进行，对应于化合物4的峰逐渐变小，而6逐渐变大。

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。