苯甲醛

The concentration of monomethyihydrazine in brain increased along with perfusion time and monomethylhydrazine concentration in the perfusate.

MMH灌流浓度分别为145，290和580mgL^(-1)，灌流时间为2，5，8及10min；采用对-二甲氨基苯甲醛比色法进行脑组织中的MMH浓度测定。

Therelationship of the amount of catalyst and the ee% of product was seen to be negative nonlin-ear. Catalyst 3 was used in the enantioselective addition of diethylzinc to aromatic aldehydesand gave good results. The configuration of products was determined by the configuration ofthe catalysts' chiral carbon linked with hydroxy group. Using β- amino alcohols bearing only one chiral center as catalysts for the enantiose-lective addition were studied. D-N, N-dialkyl-2-amino butanol gave poor catalytic effect be-cause of their structure. The configuration of the product is the same as the catalyst. Anotherkind of β- amino alcohols - phenylglycine derivatives and valine derivatives have chiralcenter on the carbon linked with amino group. Catalyzed by-phenylglycine derivatives 6,7, 9, 10, the reactions gave satisfied results. The optical yields exceeded 80%.

在探讨了含有两个手性中心的β-氨基醇之后，选择了只有一个手性中心的β-氨基醇，一是手性中心为连羟基的手性碳原子：D-N，N-二烷基-2-氨基丁醇；二是手性中心为连氨基的手性碳原子：D-苯基甘氨酸衍生物和L-缬氨酸衍生物。D-2-氨基丁醇的催化效果不太好，这与其结构的空间位阻较小有关系，反应产物与连羟基手性碳构型一致；由苯基甘氨酸和缬氨酸出发合成五种β-氨基醇6-10，研究了不同ee％的-6作用下的二乙基锌-苯甲醛加成反应，发现该催化剂具有不对称放大效应；-7，9，lO的催化效果也比较令人满意，光学产率80％以上，所得产物构型与催化剂构型一致。

The title compound C_(27)H_(23)FN_(4)O_(2)C_(2H_(5)OH was obtained by the reaction of 1-phenyl-3-methyl-5-pyrazolone with 2-fluorobenzaldehyde in ethanol in the presence of piperidine under microwave irradiation and recrystallization from ethanol.

标题化合物C27H23FN4O2(C2H5OH)是由2分子1-苯基-3-甲基-5-吡唑啉酮和1分子2-苯甲醛微波辐射4 m in，用乙醇重结晶得到。

Methods In view of the selective accumulation of porphyrin derivatives in tumor tissue, three ftorafur-porphyrin compounds and three metal compounds were designed, and the target compounds were synthesized with satisfied yield via a four-step procedure starting from pyrrol and substituted benzaldehydes.

根据卟啉对肿瘤组织的选择性滞留作用，设计了3个卟啉替加氟化合物及3个金属络合物，并以吡咯和取代苯甲醛为原料经4步反应以满意的收率得到目标化合物。

A new method of solvent-thermal synthesis of Meso-tetra(4-carboxyphenyl) zincporphyrin complexs, using the propionic acid and the DMF as solvents and the salt of zinc, catalyst-;pyrrol,4-carboxybenzaldehyde, as reagents.

报道了用丙酸和DMF作溶剂和催化剂，直接用吡咯，4 羧基苯甲醛，锌盐合成Meso 5，10，15，20 四锌卟啉配合物的新型方法———溶剂热合成。

Meso tetramethoxyphenyl porphyrin ; pyrrol ; para hydroxy benzaldehyde ; synthesis

间-四对甲氧基苯基卟啉；吡咯；对羟基苯甲醛；合成

In the course of the condensation of 2, 4, 6-triamino quinazoline with substituted benaldehyde, the solvent DMF was replaced by absolute ethanol and the dried 3A clathrates was used as the dehydrating agent in order to improve the yield.

在2，4，6-三氨基喹唑啉与取代苯甲醛的缩合过程中，用无水乙醇代替DMF作溶剂，并用干燥过的分子筛吸收反应过程中生成的水，从而简化了后处理的步骤，并提高了产率。

We synthesized some inorganic and organosilicon polymer-supported ruthenium complexes and used them as catalysts for oxidation of styrene.

我们合成了几种无机和有机硅高分子负载钌的催化剂并用于催化苯乙烯选择性氧化制备苯甲醛的反应。

P-Bromobenzaldehyde was synthesized from p-bromotoluene by direct oxidation with manganese sesquioxide The factors affecting the yields of p-bromobenzaldehyde were investigated.

用三氧化二锰直接氧化法将对溴甲苯氧化对溴苯甲醛，讨论了合成过程中影响产率的各种因素，确定反应的优化条件为温度338K，硫酸的浓度7.5mol/L，三氧化二锰1.8g，产率可达73.89%。

P-tert-Butyl benzaldehlyde was prepared by oxidation reation in a suspended three phases of solid, oil and water, constituted by manganese sesquioxide , starting material and H 2SO 4 of medium concentration.

利用二氧化锰在650 ℃下灼烧得到三氧化二锰，以三氧化二锰和中等浓度的硫酸构成的悬浮液在反应器内进行固、油、水三相氧化反应制得对叔丁基苯甲醛。

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。