苯基的

The composite catalyzercan effectively catalyze cyclize reaction on the sysnthesis of N-phenyl maleimide.The yield of NPMI arrives at 90%,and the purity is 98.15%.

合成N-苯基马来酰亚胺的最佳工艺条件为；原料摩尔配比为1；1.2；溶剂为20；1；初期反应温度为40～50℃，环化反应温度为135℃；环化时间为2h。

The composite catalyzercan effectively catalyze cyclize reaction on the sysnthesis of N-phenyl maleimide.

合成N-苯基马来酰亚胺的最佳工艺条件为；原料摩尔配比为1；1.2；溶剂为20；1；初期反应温度为40～50℃，环化反应温度为135℃；环化时间为2h。

The calibration curve was linear (r=0.9999) within the range of 5.096×10-3~0.2038 μg/mL for dibenzyl-(2-chlorophenyl) methanol. The average recovery was 99.83% with repeatability precision RSD=1.26%(n=9). The limit of dibenzyl-(2-chlorophenyl) methanol was 2.00%.

，平均回收率为100.34%，RSD=0.95%（n=9）；杂质二苯基-（2-氯苯基）甲醇在5.096×10-3~0.2038 μg/mL范围内线性关系良好（r=0.9999），平均回收率为99.83%，RSD=1.26%（n=9），限度为不得大于克霉唑标示量的2.00%。

In a similar way, using N,N\'-dibenzyl tartamide as auxiliary,-(2-methyl)allyl-2-chloro-phenyl-methyl azide, a vital intermediate of Repaglinide, can be prepared via asymmetric allylation of o-chlorobenzaldehyde in

产物经氧化和碘加成内酯化反应得到阿伐他汀中间体(3R，5S)-3-羟基-5-碘甲基戊内酯(10)；将N-苄基酒石酸二酰胺用于邻氯苯甲醛的不对称烯丙基化反应以较高光学收率得-甲基烯丙基-2-氯苯基-甲基醇

In order to investigate the mechanism for this reac-tion, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1∶1 or 2∶1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1∶1和2∶1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

In order to investigate the mechanism for this reaction, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1:1 or 2:1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1：1和2：1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

Objective To establish a new method to measure alkaline phosphatase activity using disodium p-acetylphenylphosphate (PAP-PNa2) as substrate.

目的 合成对乙酰基苯基磷酸二钠盐(PAP-PNa2)，并建立以PAP-PNa2为底物的碱性磷酸酶测定方法。

O methoxy phenyl lithium reacts with 6,6 dimethyl fulvene to give ligand lithium (Cp ′Li,Cp ′ represents cyclopentadienyl with substituents).

邻甲氧基苯基锂和 6，6-二甲基富烯(或 6，6-二乙基富烯)反应得配体锂盐，Cp′ Li直接和 Cp Zr Cl3· DME反应生成 2个新的锆络合物 Cp′ Cp Zr Cl2 。

A novel drum organooxotin cluster hexameric phenyloxotin 3 indolpropylcarboxylate was synthesized by the reaction of Ph 3SnOH with 3 indolpropylcarboxylic acid in 1∶1 molar ratio.

利用Ph3SnOH和 3 吲哚丁酸以 1∶1摩尔比反应，合成了新型含羧酸配体的鼓形有机锡氧簇合物：六聚苯基锡氧 3 吲哚丁酸酯。

Then the protected D-mannitol, mixed with lead tetraacetate, hippuric and acetic anhydride, were refluxed in THF for 18 h in a one-pot two step reaction to afford a chiral precursor-2-phenyl-4-[-2,3-O-]-propylidene-5(4H)-oxazolones.

产物与四乙酸铅、马尿酸、乙酐于THF中回流18 h完成一釜二步反应，纯化后得到含有手性碳原子的环丙烷氨基酸前体-2 苯基-4-[-2，3-O-]丙叉？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。