苯核

Its zinc complex was applied in asymmetric direct aldol reaction of acetone and p-nitrobenzal...

设计合成了一种NOBIN衍生的手性配体，初步研究了该手性配体的双核锌配合物在对硝基苯甲醛和丙酮的不对称直接醇醛缩合反应中的催化应用，20℃和20mol％催化剂量下，获得了32.5％ee和72％收率的产物。

In this novel cyclization, nucleophiles very regioselectively attack the internal C1′alkyne carbon of enediynes to give benzene derivatives as a single regioisomer.

在这新的环化，亲核攻击非常regioselectively内部C1'alkyne碳的enediynes给予苯衍生物作为一个单一的regioisomer 。

A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.

环核包围在抗化学反应变化的结构中的一组原子，如苯环

Chemistry A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.

环核：包围在抗化学反应变化的结构中的一组原子，如苯环

Based on the QSAR equation for MDR modulators, a new type of MDR modulators was designed with benzimidazole moiety as their parent nucleus, and four compounds of this type were synthesized and characterized.

在MDR逆转剂构效关系的理论指导下，选定苯并咪唑为母核，设计了一类新的MDR逆转剂候选化合物，合成了4个这种类型的新化合物。

The DSC results showed that calcium carbonate,sodium benzoate and terephthalic acid were the nucleating agents of polypropylene with high thermal stability of the nucleating effect,while the thermal stability of nucleating effect of pimelic acid,suberic acid,azelaic acid,and the two component nucleating agents suberic acid/calcium carbonate and azela...

研究了碳酸钙、苯甲酸钠、对苯二甲酸和脂肪二元酸：庚二酸、辛二酸、壬二酸及其与碳酸钙组成的双组分成核剂对聚丙烯结晶成核效果的热稳定性。

CH3OH could attack the phosphor atom in 1,3,2-dioxaphopholane of compiound (1) to give O-methyl O-hydroxyethyl-O-phthalimidoethyl thiophosphate in 85% yield; in the presence of potassium hydroxide aryl selenol could attack the carbon atom in 1,3,2-diox-aphopholane of the cyclic phospholipid conjugate of N^1-(2-furanidyl)-N^3--5-fluorouracil to give the corresponding product of ring-opening in high yields.

在室温下，以异丙醇作溶剂，苯硒酚与化合物2不反应。在氢氧化钾存在下，以异丙醇／水作溶剂（体积比20：1，在室温下，硒酚可以有效地进攻中化合物2中1，3，2-二氧磷杂环戊烷中的碳原子生成相应的开环产物。按照这一反应条件，顺利实现了硒酚对N^1-（2-呋喃基）-N^3-羟烷基-5-氟脲嘧啶硫代环甘油磷脂缀合物的亲核开环，生成甘油骨架的端碳原子上带有芳硒基新颖的磷脂核苷缀合物。

Our company supply raw materials and related intermediates as follows: Second dibutyryl cAMP calcium, voriconazole, terbinafine, vecuronium amines, cAMP, thiamphenicol, a chlorophenol hydrochloride esters, card network sodium phosphate tilmicosin, foscarnet, lornoxicam, Tilmicosin, Cephalosporium aspirin acid, ceftiofur hydrochloride, ceftiofur sodium, Ozagrel, ondansetron hydrochloride ketones, hydroxyurea, ticarcillin sodium, telmisartan, esmolol hydrochloride, hydrochloric acid Daguan Nikkomycin, adefovir dipivoxil, buflomedil hydrochloride, granisetron hydrochloride, warfarin sodium,-methyl gabexate acid, nicergoline, pantoprazole sodium,·, tegafur, cefepime hydrochloride, vecuronium bromide, hydrochloric acid meclofenoxate, sertraline hydrochloride, Cefonicid amine salt, aztreonam, ticarcillin, cefdinir, cefodizime sodium, sodium ferulate, colloidal pectin secretion, 2,3 - cyclopentene and pyridine, Piperacillin acid, cefetamet US-acid, hydrochloride Cefmenoxime ,3-TZ, 2 - deoxy-D-glucose, two-amidine urea benzene, sodium Cefonicid, Cefonicid intermediates, ester Cefamandole sodium, Cefalotin acid, intermediates cefpirome, cefepime sulphate, cefepime intermediate nucleus of cefepime, cefpirome nucleus, Cefamandole sodium, ceftriaxone new active ester, oxaliplatin, cyclophosphamide vary gland amines, polyene match him.

我公司供应的原料药及相关中间体为：二丁酰环磷腺苷钙、伏立康唑、盐酸特比萘芬、维库溴胺、环磷腺苷、甲砜霉素、盐酸甲氯酚酯、卡络磺钠、磷酸替米考星、膦甲酸钠、氯诺昔康、替米考星、头孢匹胺酸、头孢噻呋盐酸盐、头孢噻呋钠、奥扎格雷、盐酸恩丹西酮、羟基脲、替卡西林钠、替米沙坦、盐酸艾司洛尔、盐酸大观霉素、阿德福韦酯、盐酸丁咯地尔、盐酸格拉司琼、华法林钠、甲磺酸加贝酯、尼麦角林、泮托拉唑钠、普拉洛芬、替加氟、盐酸头孢吡肟、维库溴铵、盐酸甲氯芬酯、盐酸舍曲林、头孢尼西胺盐、氨曲南、替卡西林、头孢地尼、头孢地嗪钠、阿魏酸钠、胶体果胶泌、2，3-环戊烯并吡啶、哌拉西林酸、头孢他美酸、头孢甲肟盐酸盐、3-TZ、2-脱氧-D-葡萄糖、双脒苯脲、头孢尼西钠、头孢尼西中间体、头孢孟多酯钠、头孢噻吩酸、头孢匹罗中间体、头孢吡肟硫酸盐、头孢吡肟中间体、头孢吡肟母核、头孢匹罗母核、头孢孟多钠、头孢曲松新型活性酯、奥沙利铂、异环磷腺胺，多烯他赛。

Through cyclic hydrogen bonding with motif formed by coordinated water molecules and coordinated hydroxyl groups of dhbd from adjacent tetranuclear units, these adjacent neighbors are connected to afford a 1D supramolecular chain along axis a, which is further extended via aromatic intercalations and other crystallization water molecules into a 3D structure with channels.

毗邻的四核单元通过配位H2O分子和配位羟基O原子形成的 R 22(8)型环形氢键桥的连接，沿a轴方向构建了四核单元交替相连的一维超分子链；链间籍苯环的π-π堆积作用和晶格水分子氢键链的连接进一步扩展为具有隧道的三维结构。

Using poly(benzyl-ether) dendrons with thiol functionalities and CNTs/CdS core-shell nanowires as reactants, using chloroform as solvent, through adjusting the temperature and time, soluble CNTs/CdS core-shell nanowires have been obtained.

采用带巯基的聚苯甲醚树枝状分子和CNTs/CdS核壳纳米线在有机溶剂中作用，通过调节反应时间和温度，成功制备了可溶性CNTs/CdS核壳纳米线结构。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。