反应体

By following the "self-assisted molecular editing" protocol first established in our labs,a number of Aphos ligands were efficiently prepared from a single starting material and they were screened for catalytic efficacy, leading to the discovery of the best-performing Aphos appended with a 3-nitrophenyl group at the C4 position.Combination of this Aphos with Pd_2 offers a precatalyst for successful cross-coupling of unactivated aryl chlorides with aryl boronic acids at room temperature.The reactions took place under mild basic conditions to produce the products in high yields.

通过我们首次提出的&自助分子剪裁&的概念从单一起始物快速合成和筛选了一系列膦配体，并发现C4位含3-硝基苯基的的膦配体和醋酸钯联用可以在室温下顺利地催化不活泼氯代芳烃和芳基硼酸的偶联反应，反应条件温和且产物收率很高。

Results Following orchiectomy 7d,the amount of CGRP-immunoreactive nerve fibers in the AP of the rat increased significantly, with the tortuous varicose fibers more densely distributed than that of NOR and the amount of varicosities increased significantly, while the thick fibers were more thicker than that of NOR,and many thin fibers were sent out from the thick fibers, and the varicosities were more larger.

结果 睾丸摘除7d后，大鼠垂体前叶CGRP免疫反应神经纤维发生了显著变化，表现为膨体型纤维较正常组稠密，分支增多，迂曲成片，盘绕成网，分布更加广泛，膨体数量显著增多；粗纤维较正常组粗，且发出许多迂曲盘绕的细纤维，膨体形态变大。t检验显示，OX组与NOR组垂体前叶内CGRP免疫反应神经纤维的平均面积密度差异显著，OX＋V与NOR组差异显著。

Chiral SalanCrX complexesa saturated version of SalenCr(ⅢX are designed,and in conjunction with an ionic quaternary ammonium salt or organic strong base can efficiently catalyze the asymmetric,regio-and stereoselective alternating copolymerization of CO_2 with rac-PO at mild conditions to afford isotactic-enriched polycarbonates with～95%head-to-tail linkages and moderate enantioselectivity.

本论文在Salen构型配体的基础上，设计合成了一系列手性Salan型铬配合物，并将其与季铵盐/有机强碱组成亲电-亲核双组分催化体系，在室温下可以有效的催化CO_2和环氧丙烷的不对称交替共聚反应，实现了CO_2和环氧丙烷的不对称交替共聚反应的区域和立体化学控制，得到95%的头尾连接单元和中等光学纯度(对映体过量值ee%≈70%)的全同结构的聚碳酸酯。

The abnormal Beckmann rearrangement of steroid-17-one oximes affords the corresponding alkylene-nitrile product as important intermediates for this purpose.

对九个甾体-17-酮肟的非正常Beckmann重排反应研究发现甾体分子上的取代基和立体化学对反应没有明显的影响（Scheme 1）。

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2，6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂，对重氮乙酸乙酯与1，1-二苯乙烯不对称环加成进行催化反应，发现这8个催化剂对1，1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力，手性2，6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

It had the advantages of short operation time, safe operation, biological fixation, small trauma and so on, which could avoid the adverse reaction during infusion, the trouble of prosthetic repair after operation and much destruction of sclerotin.

非骨水泥型假体表面为多孔，植入人体后，依靠骨组织反应牛长能力，使骨与假体表面形成紧密地生物固定，其具有手术时间短，术中患者安全、假体固定为生物学固定、手术创伤小等优点，避免了骨水泥在注入过程中产生的不良反应以及术后假体返修所带来的取出麻烦、骨质破坏过多现象。

In other words,under the same reaction conditions,the larger the particle size of theprecursor mixed powder,the higher the temperature at which Zn_2TiO_4 starts to appear.There are structure similarity phenomena in ZnO-TiO_2 system,i.e.,the connectionmanner of TiO6 octahedra in the structure of ZnTiO_3 is similar with the one of rutile,andthe connection manner of TiO6 octahedra in the structure of Zn_2TiO_4 and Zn_2Ti_3O_8 issimilar with the one of anatase.

ZnO-TiO_2系统中存在一种类构现象，即：ZnTiO_3结构中的氧八面体的连接方式和金红石TiO_2的相似，而Zn_2TiO_4和Zn_2Ti_3O_8结构中的氧八面体的连接方式则和锐钛矿TiO_2的相似，并由此衍生出一个类构效应理论，即：ZnO和金红石TiO_2的反应产物中不应该出现Zn_2TiO_4和Zn_2Ti_3O_8当然，反应温度应低于ZnTiO_3的起始分解温度。

Indium Tin Oxide nano-powder was prepared with a convenient solvent thermal method. A hydroxide precursor was first prepared from indium chloride and tin chloride by using ammonia as precipitating agent.

以氯化铟和氯化锡为原料，氨水为沉淀剂，先用化学沉淀法制备了前驱体，然后将该前驱体以乙二醇为溶剂在聚四氟乙烯内衬的反应釜中于低至190 ℃下反应，获得了铟锡氧化物纳米粉体。

Results:Positive immunoreactions happened in the operated sciatic nerve,the ipsilateral spinal ganglion and motor neuronal body of spinal cord.

结果：P75在右侧脊髓前角运动神经元胞体、脊神经节感觉神经元胞体和右侧坐骨神经呈免疫组化阳性反应，而左侧均呈阴性反应。

The quantity of CD3+ cells in the EdNSC, AdNSC of cloning goattransplantation group and control group had no statistics difference(P＞0.05) at acute and chronic period.Overall, in our study, We got the conclusions as follow: 1,The EdNSC, AdNSCof cloning goat and the AdNSC of the non-cloning goat were successful obtained;EdNSC growed faster than AdNSC in the same cell culture method. 2,The braincontusion and laceration model of cloning goats were successful established by freefalling of 50 gram of steel ball accelerate strike on the goat brain from 100cm height.3, EdNSC and AdNSC transplantation both had obvious therapeutic effect on braincontusion and laceration of cloning goats; The therapeutic effect of EdNSCtransplantation was better. 4, Allograft of stem cells has acute and chronicimmunological rejection and autografting of stem cells has no acute and chronicimmunological rejection.

在相同的条件下，EdNSC体外培养速度比成AdNSC快。2对羊脑上薛氏沟周围运动皮层区使用50g×100 cm力度作自由落体加速撞击，可产生观察指标明确且存活率高的羊脑挫裂伤模型，有望广泛用于神经干细胞移植及药物等治疗的实验研究。3胚胎神经干细胞及成体神经干细胞移植治疗脑挫裂伤后均有较明显的治疗效果；二者相比较而言胚胎神经干细胞稍好于成体神经干细胞。4中枢神经系统异体神经干细胞移植存在着明显的免疫排斥反应，而自体神经干细胞移植基本无免疫排斥反应

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。