联萘

In the precence of the base catalyst KF/Al2O3, the one - pot reaction of 2 -hydroxybenzaldehyde or 2 - hydroxynaphthaldehyde with ethyl α- bromoacetate,α-bromoacetophenone , 1,4 - dichloromethylbenzene , 4,4'- dichloromethylbiphenyl and 1,5 -dichloromethylnaphthalene gave the benzofuran compounds in 38-89% yield.

本文报道用 KF/Al_2O_3作为碱催化剂，由水杨醛或2-羟基-1-萘醛分别和α-溴代乙酸酯、α-溴代苯乙酮、苄基氯、4，4'-二氯甲基联苯和1，5-二氯甲基萘等进行一锅化缩合反应，以38～89％的产率合成了14种芳并呋喃化合物。

It is found that the dihedral angle in the two kinds of molecules were affected by the formation of the nanotubes, as a result, the CD spectra are different.

制备了手性分子二—2—萘基吡咯醇及--2，2'-甲氧基-1，1'-联二萘的纳米管，发现纳米管结构的形成对手性分子的二面角产生一定影响，进而影响其圆二色谱。

Two different catalysts for oxidative coupling of 2-naphthol to give racemic 1,1′-binaphthene-2,2'-diol were introduced and the yields in different conditions were studied.

介绍了两种在水相中利用2-萘酚氧化偶合制备外消旋1，1'-联-2，2'-二萘酚的催化剂，并对不同反应条件下的产率进行了研究。

Under the selected chromatographic operation conditions, the 2,2'-Dihydroxy-1,1'-binaphthyl, 2-Naphthol and other impurities could be separated efficiently.

在选定的色谱条件下，1，1'-联－2-萘酚和2-萘酚等杂质之间具有较好的分离效果。

An inclusion complex -BINOL--Omeprazole or -BINOL--Omeprazole was first obtained from racemic omeprazole with chiral host --or --2, 2'- dihydroxy-1, 1'-binaphthyl in high selectivities, and thus both optically pure enantiomers of omeprazole were prepared as syrup with more than 99% enantiomeric excess, the overall yields of both two enantiomers are more than 60%.

首次发现光学纯R--或s--联二萘酚高效识别并包结R--或S--奥美拉唑，形成包结络合物的现象，并首次将包结拆分法应用于手性苯并咪唑类抗溃疡药物的制备，用一种构型的光学纯联二萘酚直接拆分奥美拉唑，可同时得到油状或糖浆状e.e。

First,from molecular aspect,a novel copolymer-PPBES has successfully been synthesized by nucelophilic substitution reaction with biphenol,4-(4-hydroxyphenyl)-phthlazin-1(2H)-one and 4,4\'-dichlorodiphenylsulfone,which has both twisted and linear molecular structures in the backbone.

本文从分子设计出发，首先选用联苯二酚与4-(4-羟基苯基)-2，3-二氮杂萘-1-酮和4，4′-二氯二苯砜为共聚单体，采用溶液亲核取代逐步缩聚合方法，合成了一系列含有杂萘联苯结构和联苯结构的新型共聚芳醚砜。

A series of liquid crystals containing naphthalene 1~13 was synthesized by the reaction of carbonyl compound with Grignard reagent and coupling reaction between phenyl boronic acid and halogen naphthalene .

经羰基化合物与格氏试剂反应及芳基硼酸与萘基卤化物偶联反应合成了系列含萘环骨架液晶化合物1~13；产率在73%~759%。

To be different from the already chloromethylation catalyst, it has a certain amount of moisture wet, which will not produce huge amounts of doughtic cancerogenic chloromethyl methyl ether during and after the reaction.4,4\'-bisbiphenyl, 1,4-bisbenzene, 1,4-bis(chloro- methyl)-2,5-dimethylbenzene, 1,5-bis-2,4-dimethylbenzene, 4-(chlor- omethyl)-1,2-dimethylbenzene, 1,2-bis-4,5-dimethylbenzene, 5,8-bis-1,2,3,4-tetrahydronaphthalene, 3,3\',5-tris-4,4\'-bisbiphenyl and 3,3\', 5,5\'-tetrakis-4,4\'-bisbiphenyl were synth- esized by using this new catalyst. Results indicated that when the reaction temperature was 55～60℃, the reaction time was 12h, the catalyst which consists of the concentration of 80%H_2SO_4, HAc and Lewis acid, the amount of Lewis acid 0.15 mol(nLewis:nbiphenyl=1.5:1), yield of biphenyl chloromethylation product 4,4\'-bis(chrolomethylbiphenyl can reach a maximum 85%.

采用这种催化体系完成了4，4′-二氯甲基联苯、对二氯甲基苯、1，4-二氯甲基-2，5-二甲基苯、1，5-二氯甲基-2，4-二甲基苯、4-氯甲基-1，2-二甲基苯、1，2-二氯甲基-4，5-二甲基苯、5，8-二氯甲基-四氢萘、3，3'，5-三氯甲基-4，4'-二甲基苯和3，3'，5，5'-四氯甲基-4，4'-二甲基苯的合成，结果表明：在反应条件为：反应温度55～60℃，反应时间12h，选择80%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.15mol(和原料比为1.5：1)，反应效果最好，联苯氯甲基化产物(4，4′-二氯甲基联苯)收率为85%；在反应条件为：反应温度70℃，反应时间8h，80%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，苯的氯甲基化产物收(来源：ABd0C论文eded网www.abclunwen.com)率为75%；在反应条件为：在反应条件为：反应温度40℃，反应时间10h，60%H_2SO_4和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，对二甲苯氯甲基化产物(1，4-二氯甲基-2，5-二甲基苯)收率为78.5%；在反应条件为：反应温度35℃，反应时间10h，60%H_2SO_4、冰醋酸和Lewis酸为催化剂，反应最佳反应Lewis酸用量是0.1mol(和原料比为1：1)时，反应效果最好，间二甲苯氯甲基化产物(1，5-二氯甲基-2，4-二甲基苯)收率为81.5%。

The present doctoral dissertation was carried out to study the chemical constituents isolated from stems of two medicinal schisandraceous plants.34 compounds were isolated from the ethanol extracts of the stems S.henryi collected in the Jiangxi province by various column chromatographies.27 of them were identified on the basis of spectral analysis.There are 18 lignans,(including 5 dibenzocyclooctadienes,6 aryltetralins,2 tetrahydrofurans,3 diarylbutanes,2 other lignans),3 flavanols,2 glyceroesters,1 naphthoquinone,1 xanthine and 2 steroids,of which 6 compounds were new compounds,and 7 compounds were isolated from this family for the first time.

采用多种色谱技术进行分离纯化，从翼梗五味子藤茎的乙醇提取物中分离到34个化合物，综合运用现代波谱学技术鉴定了27个化合物，包括木脂素类化合物18个(其中联苯环辛烯类木脂素5个，芳基四氢萘类木脂素6个，四氢呋喃类木脂素2个，二芳基丁烷类3个，其他类型木脂素2个)，黄烷醇类化合物3个，甘油酯类化合物2个，萘醌类化合物1个，黄嘌呤类化合物1个，甾体类化合物2个，其中，5个为新化合物，7个为本科首次报道。

Synthesis of racemic 1,1′-bi-2,2′-naphtholby catalytic oxidative coupling of 2-naphthol was reviewed.

综述了催化氧化偶联2-萘酚合成外消旋体1，1′-联二萘酚的方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。