苯基的

Some of the derivatives of triphenylcarbinol which contain a number of methoxy groups form halochromic salts even in aqueous solutions.

一些三苯基甲醇的衍生物甚至在水溶液中也可以形成加酸显色盐。

It was shown that the purity of the aim product was higher than 99% and its yield was 60%~70%. The intermediate product p-tertbutoxycarbonyloxybenzaldehyde could be synthesized conveniently and quantitatively. The main byproduct was triphenylphosphine oxide.

结果表明，所得目标产物对特丁氧酰氧基苯乙烯纯度达99%以上，产率为60%~70%，中间产物对特丁氧酰氧基苯甲醛可以定量合成，反应的副产物主要是三苯基氧化膦。

Methods 2-(piperazin-1-yl)-1-(pyrrolidin-1-yl)ethanone (2) was synthesized from pyrrolidine via amidation and substitution, followed by treating with chloroacetyl chloride and triphenylphosphine in a "one pot" manner to give the corresponding phosphonium chloride 3 in a stable and pure form after crystallization from isopropanol.

以四氢吡咯为原料，先与氯乙酰氯成酰胺，再与哌嗪发生取代反应制得中间体［（1-四氢吡咯基）甲基］哌嗪(2)；化合物2与氯乙酰氯和三苯基膦反应，经异丙醇重结晶得到稳定的有机鏻盐(3)；化合物3与3，4，5-三甲氧基苯甲醛发生Wittig反应，再与马来酸成盐得目标化合物马来酸桂哌齐特(1)。

Aminobenzothiazoleswere diazotized and then coupled with active methylenecompounds to form a kinds of new hydrazones.

苯基硫脲在浓硫酸中，先在溴作用下氧化合环，再直接硝化，得到产率95％，纯度98％的2-氨基-6-硝基苯并噻唑。

In pacemaker cells of SA node superfused with the oxygenated K—H solution, MDP, APA, V〓, VDD, RPF and APD〓 were—45±5mv, 48±4mv, 2. 4±0.9v/s, 89±8 mv/s, 200±11bpm and 206±15ms, respectively. Anoxia (perfused for 20min with a modified K—H solution gassed with 100% N〓 and deprived of glucose) increased MDP, APA and V〓, and decreased VDD and RPF in a timedependent manner. At anoxia for 20min, the above parameters were—58±5mv, 64±5mv, 11. 7±2. 7v/s, 24±7mv/s, 92±11bpm and 179± 14ms, respectively. ADase (10U/L).

环戊腺苷和苯基异丙基腺苷不仅能增加豚鼠窦房结起搏细胞APA、MDP和〓，且能减小VDD、RPF和〓在环戊腺苷20nmol／L浓度时，MDA、APA和〓分别增值5.4±0.7mv、7.6±0.9mv和2.4±0.5v／s，VDD、RPF和〓分别降低32±4mv／s、68±9bpm和31±12ms（p.05或0.01）。0.1μmol／L 8—苯茶碱和10μmol／L格列苯脲能明显地抑制环戊腺苷的电生理效应。

Under the imitated physiological condition of animal body, the binding of phenoxyacetate acid compounds to bovine serum albumin was studied by fluorescence spectrum.

在模拟动物体生理条件下，用荧光光谱法研究3，4，5-三羧甲氧基苯甲酸、3-(4-羧甲氧基)苯基丙酸与牛血清白蛋白结合反应的光谱行为。

The p-tolyl benzyl ether was synthesized by reaction of p-cresol and benzyl chloride in 95% ethanol as solvent and under microwave irradiation.

以95%的乙醇为溶剂，以氯化苄和对甲苯酚为原料利用微波辐射加热合成对甲苯基苄基醚。

Ten N-[2,4-disubstituted-5-(3-methy-2,6- di-oxo-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidin-1-yl)phenyl]imides were designed and synthesized. Their structures were confirmed by 1H NMR, IR, HPLC/MS and elemental analysis.

设计并合成了10个未见文献报道的N-[2，4-二取代-5-(3-甲基-2，6-二氧-4-三氟甲基-1，2，3，6-四氢嘧啶-1-基)苯基]酰亚胺类化合物，其化学结构经1H NMR， IR， HPLC/MS和元素分析表征。

The residue is then cooled and acidified with dilute hydrochloric acid. The toluene layer is separated off, washed with water and distilled. Toluene and other low-boiling fractions first distil over and finally pure diethyl phenylmalonate is obtained boiling at 165-166°C, under 20 mm. pressure and having m.p. 16 °C. The yield is 85% of the theoretical.

剩余物冷却然后用稀盐酸酸化，分理出甲苯层，用水洗涤，然后蒸馏，甲苯和其他低沸点馏分先被蒸馏出来，最后获得20毫米压力下沸点为165-166摄氏度的二乙基苯基丙二酸酯，其熔点为16摄氏度，理论收率为85%。

Two carbonyl triruthenium metal clusters were separated with cellulose tris (3, 5-dimethylphenyl-carbamate) as chiral stationary phase. The effects of the optimal conditions were determined according to the effects of the mobile phase composition, the flow rate of the mobile phase and the solvents of the samples etc on the chiral separation of the metal clusters.

应用纤维素三（3， 5-二甲基苯基氨基甲酸酯）手性固定相对2种羰基钌金属簇合物进行了拆分，通过流动相组成、流速和样品溶剂等条件对拆分影响的考察对拆分条件进行了优化。

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。