A Practical Synthesis of （S）—（＋）—2—（6′—methoxyl—2—naphthyl） propionic Acid

A simplified procedure for enantioselective synthesis of (S)-( )-2-(6′-methoxyl-2-naphthyl)propionic acid ((S)-( )-naproxen), starting from (6-methoxy-α-naphthyl)-1-propanone,with D-mannitol as auxiliary catalyzed by SmCl3 in one-pot is described. The yield is 87.5%(ee value 99%).     

5—羟基色胺受体激动剂（1R,2S）—（一）—2—（2—羟基苯基）—N …

利用手性双哑唑啉与三氟甲磺酸亚铜催化２－甲氧基苯乙烯与重氮乙酸二环己基甲酯的不对称环丙烷化反应合成了手性环丙烷羟酸酯,用氢化氧钠对其进行选择性水解得到全反式环丙烷羟酸,其ｅｅ值ＧＣ测定为８８％。进一步经过Ｃｕｒｔｉｕｓ重排、烷基化等反应及重结晶等步骤合成了光学纯的具有生理活性的环丙胺化合物Ｉａ和Ｉｂ。     

Synthesis and Structure of [Cu2（μ—NO2）（aepy）4]（ClO4）3 （aepy=2—（2—Aminoethyl）pyridine）

1 INTRODUCTION There has been great and considerable interest in the study of copper nitrite complexes because they are relevant to the study of copper-containing enzymes involved in the denitrification process[1]; in particular, copper-nitrite complexes are potentially relevant to the nitrite reductases[2] (the enzyme from Achromobacter Cycloclastes) which convert NO2－ to NO and/or N2O. Many attempts have been made to synthesize a variety of copper-nitrite complexes, in which the n…     

（2E,4E）—3—苯基—2—（2—（N—乙氧羰基甲基氨基）—苯硫基）—2,4—己二烯酸乙酯

２，３－二氢－２－甲基－４－苯基－１，５－苯并硫氮杂卓与重氮乙酸乙酯反应，得到非预斯的分子内重排的开环产物，通过元素分析，ＩＲ，＾１ＨＮＭＲＭＳ及Ｘ－晶体的衍射分析确定了它的结构，并根据产物的结构，对这一新反应的反应机理进行了探讨和研究。     

反式—2—（4—（2—（4—取代苯基）乙烯基）苯基）—5—（4—联苯基）恶唑的合成,？…

通过４－ＲＣ６ＨＣＨＯ与２－（４－甲基苯基）－５－（４－联苯基）恶唑（Ｒ＝Ｈ，Ｍｅ，Ｅｔ，ｉ－Ｐｒ，ｉ－Ｂｕ，Ｐｈ，ＯＭｅ，Ｆ，Ｃｌ，Ｂｒ）在碱催化下的缩合反应合成了１０个新的反式－２－（２－（４－取代苯基）乙烯基）苯基）－５－（４－联苯基）恶唑类化合物，经元素分析，ＩＲ，ＵＶ及ＭＳ确定了它们的结构，并测定了荧光发射光谱，荧光量子产率和激光转换效率。     

A Triple Cluster Platinaborane：[（P（2）Ph3）Pt（1）（μ2—B（11）—B（9）—OC（CH3）3—B10H10））Pt（7）（P（1）Ph3）]2

Ｉｎｒｅｃｅｎｔｙｅａｒｓｓｙｎｔｈｅｓｉｓａｎｄｃｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆｎｅｗｍｅｔａｌｌａｂｏｒａｎｅｓａｎｄｍｅｔａｌｌａｃａｒｂｏｒａｎｅｓｈａｖｅａｔｔｒａｃｔｅｄｍｕｃｈｉｎｔｅｒｅｓｔ .1 3Ａｗｉｄｅｖａｒｉｅｔｙｏｆｃｌｕｓｔｅｒｃｏｍｐｌｅｘｅｓ ,ｉｎｗｈｉｃｈｃｏｏｒｄｉｎａｔｉｏｎｃａｎｂｅｖｉａＢ—Ｈ—Ｍｏｒ (ａｎｄ)Ｂｎ—Ｍｂｏｎｄ(ｎ =1,2 ,3,4 ,5 ,6 ) ,ｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄａｎｄｓｔｒｕｃｔｕｒａｌｌｙｃｈａｒａｃｔｅｒｉｚｅｄ .Ｔｈｅｐｏ…     

2—（芳磺酰基）—1—（2—噻吩基）乙酮的合成

２－（芳磺酰基）－１－（２－噻吩基）乙酮的合成丁言斌樊爱龙张正＊（南京大学化学系南京２１００９３）关键词氯噻吩基乙酮，芳磺酰基噻吩基乙酮，合成，相转移催化１９９６－０８－１２收稿，１９９７－０１－１３修回砜类化合物不仅是有机合成的有用中间体［１］，而...     

[（phen）2Mn2（μ—O）（μ—Ac）2（H2O2）]（ClO4）2·4H2O双核锰？…

MnAc3.2H2O在pH=4.0的HAc-NaAc缓冲溶液中和邻菲罗啉(phen)反应, 制得了双核锰(Ⅲ)合物[(phen)2Mn2(μ-O)(μ-Ac)2 (H2O)2](ClO4)2.H2O, 并进行了红外光谱表征. X射线单晶衍射表明, 该晶体属单斜晶系, 空间群P21/n, 晶胞参数: a=1.025 28(5) nm, b=1.792 75(9) nm, c=1.984 14(10) nm, β=94.843 0(10)°, V=3.634 0(3) nm3, Z=4, Dc=1.669 g.cm-3. 紫外可见光谱在480 nm处有一个吸收峰. 循环伏安实验说明, 此配合物在乙腈溶液中经历了一个半可逆的一电子氧化还原过程.     

Synthesis and Crystal Structure of Ag2（admtrz）2（CF3CO2）2（admtrz=4—amino—3,5—dimethyl—1,2,4—triazole）

1 INTRODUCTION Transition metal complexes bridged by 1, 2, 4-triazole group can produce interesting structures and specific properties[1]. Many attempts have been made to synthesize a variety of complexes with paramagnetic centers by using such ligands, and their structures and magnetic properties have been characterized[2]. However, the polynuclear Ag(I) complexes bridged by 1, 2, 4-triazole have been poorly studied[3]. Recently, we have prepared a series of silver(I) triazole complex…     

[Mn2（bzacen）2（MeOH）2（μ—4,4‘—bipy）]（ClO4）2的合成,结构…

合成了〔Ｍｎ２（ｂｚａｃｅｎ）２（ＭｅＯＨ）２（μ－４，４′－ｂｉｐｙ）〕（ＣｌＯ４）２化合物，并测定其晶体结构。该晶体属单斜晶系，空间群Ｐ２１／ｎ，晶胞参数：ａ＝１．３０８２（３）ｎｍ，ｂ＝１．２７１３（３）ｎｍ，ｃ＝１．８００６（５）ｎｍ，β＝１１０．９１（２）°，Ｚ＝２，μ＝５．９７ｃｍ＾－１，Ｒ＝０．０５８０，ＧＯＦ＝１．６６。在配合物阳离子中，４，４′－联吡啶桥联２个〔Ｍｎ（ｂｚａｃｅｎ     

Structural and Spectroscopic Studies on [Cu（DACH）2（H2O）]—Cl2（DACH—1,4—Diazacycloheptane）

A penta-coordinated Cu(Ⅱ） complex with 1,4-diazacycloheptane (DACH),[Cu(DACH)2(H2O)]Cl2(1),has been synthesized and characterized by X-ray diffraction,IR spectra,elemental analyses,thermal analyses,UV-Vis and ESR techniques.Complex 1 crystallizes in orthorhombic crystal system,Pbcn space group with a=1.6075(4),b=1.0539(3),c=0.9195(3)nm,V=1.5578(7)nm^3,Mr=352.79,Z=4,Dc=1.487g/cm^3,final R=0.0451 and wR=0.1294.The structure of 1 indicates that the central Cu(Ⅱ） atom is penta-coordinated by four nitrogen aboms of two DACH moieties at the equatorial positions and a water molecule at the axis position.The coordination geometry of Cu(Ⅱ） could be considered as an approximately ideal square-pyramidal environment.Both DACH rings arrange in cis-form and are predominantly in the boat-boat conformation (80%) with some disorder to the chair-chair conformation (20%).The Cl^- anions are hydrogen bonded with the nitrogen donors of the DACH rings and the oxygen donor of the coordinated H2O molecule to form a one-dimensional zigzag linear structure. The solution behaviors of 1 are also discussed in detail by Uvvis and ESR technique.     

Synthesis and Crystal Structure of aNovelPolythiotungstate Compound[PPh4]2[（S）2W（μ—S）2（O）W（THF）（μ—S）2W（S）2]

1 INTRODUCTION Polythiotungstate complexes can be prepared from the protonation of one sulfur atom of [WS4]2－ and subsequent intramolecular redox reactions[1,2]. For example, [(S)2W(m-S)2W(m-S)2W(S)2]2 was formed by the acidification of a diluted aqueous solution of (NH4)2[WS4] with dilute H2SO4[3]. When a diluted aqueous solution containing [WS4]2 was acidified with 0.1mol/L HCl, [(S)2W(m-S)2(O)- W(H2O)(m-S)2W(S)2]2 was formed[4]. [(S)2W- (m-S)2(S)W(m-S)2W(S)2]2 was form…