乙内酰脲法合成外消旋萘普生

研究了以２－甲氧基萘为原料，经乙酰基化、Ｂｕｃｈｅｒｅｒ－Ｂｅｒｇ＇ｓ反应、Ｎ－甲基化和催化氢解等反应制得外消旋体萘普生１。通过＾１Ｈ ＮＭＲ、＾１３Ｃ ＮＭＲ、ＩＲ和元素分析确证了中间体和产物的结构。     

(4S)-4-羧基杂氮硅三环的合成

利用L-N,N-双(β-羟乙基)丝氨酸及L-N,N-双(β-羟乙基)苏氨酸与三乙氧基硅烷或氯烷基三乙氧基硅烷反应合成了具有手性的(4S)-4-羧基杂氮硅三环(1～5),并运用IR、~1HNMR、EI-MS等手段表征了结构。证据显示存在着贯穿笼状结构的N→Si配键。     

1-氨基环丙烷-1-羧酸的合成: 新型植物生长调节剂

本文报道了合成1-氨基环丙烷-1-羧酸的简便而价廉的方法,即乙酰乙酸乙酯法和α-氰乙酸乙酯法;并测定了产品的结构。     

A Novel Organic—Inorganic Complex：Synthesis and Crystal Structure of [Ca（DMSO）5（H2O）]2 SiMo12O40

It is becoming a focus to synthesize and assemble organic-inorganic materials, especially, to synthesize charge-transfer complexes formed by polyoxometalate and organic donors. They have attracted much attention because such complexes are active in their electric, magnetic and optic properties1-4, many investigations about them have been done and some crystal structures of them were reported5-6. But, the disadvantage of these crystals is instability at room temperature. According to the view…     

磷酸铕钠及其与磷酸钡钠的固溶体的合成、结构与性质的研究

用钠蒸气还原ＥｕＰＯ４合成了新化合物ＮａＥｕＰＯ４其结构属三方晶系．空间群Ｐ３ｍｌ，ａ＝５４９．９（２），ｃ＝６９６．１（２）ｐｍ，Ｚ＝２，Ｄｘ＝４．９１７ｇ·ｃｍ（－３），Ｇｌａｓｅｒｉｔｅ（ＫＮａＳＯ４）晶型．在晶体中铕（Ⅱ）和钠离子有序地分布在四个Ｃ（３Ｖ）格位上，具双中心荧光发射３８９．２，４６５．６ｎｍ．它与ＮａＢａＰＯ４可形成无限固溶体并且有很强的荧光．还报道了红外图谱．     

水性涂料用聚丙烯酸酯微乳液的合成及其表征

低污染、低能耗的乳液涂料在建筑涂料中得到了广泛应用,具有核壳结构的聚合物乳液对胶膜的力学性能有较大的改善[1],微米(或纳米)级乳液具有优异的成膜性能,两者均是近年来高分子材料科学中发展十分迅速的新领域[2]。但微乳液聚合时乳化剂用量大,单体含量少。本文采用阴非离子复合乳化剂体系,单体预乳化工艺,种子乳液聚合法,通过正交实验优化聚合工艺参数及体系配方,合成了纳米级聚丙烯酸酯微乳液。并对乳液聚合物的粒径及分布、热性能、分子量及分布、结构等进行了表征。1　实验部分1 1　主要原料及乳液表征苯乙烯(St)、甲基丙烯酸甲…     

二维网状铜(Ⅱ)配合物的合成及晶体结构表征

A Cu(Ⅱ) complex [Cu(L)_1.5(OSO₃)]·3H₂O (1) [L=1,4-bis(imidazol-1-yl)benzene] was synthesized by reaction of ligand L with CuSO₄·5H₂O using solvothermal method and its structure was determined by X-ray crystal structure analysis. The structure indicates that the complex crystallizes in triclinic, space group P1 with a=0.948 8(2), b=1.078 5(2), c=1.108 4(2) nm, α=74.820(2), β=81.331(2), γ=72.638(2)°, V=1.041 5(3) nm³, Z=2, D_calc=1.687 g·cm^-3, F(000)=544, μ=1.205 cm^-1, the final R=0.062 3 and wR=0.132 8. The Cu(Ⅱ) atom has distorted square-pyramidal environment with a N₃O₂ donor set. Each L ligand links two Cu(Ⅱ) atoms using its imidazole groups to form an infinite one-dimensional (1D) ladder-like chain, which further linked by SO₄^2- to form a two-dimensional (2D) network structure. The 2D sheets are further connected by C-H…O hydrogen bonds to give a three-dimensional (3D) structure. CCDC: 650388.     

N-N''双吡咯的合成及其邻位基团效应

α,α一联吡咯是某些天然存在的活性吡咯化合物中关键组成, 关于手性联吡咯的研究已有详细的综述报道, 近年发现, 某些含N-取代氨基的空间阻碍吡咯有明显的生理活性和可贵的药理性质, N,N'-联吡咯中N-N键很容易发生均裂反应而生成游离基, 后者很可能与天然吡咯小分子的生理活性有密切关系, 这些都引起了人们的广泛兴趣。     

β-羧基乙基锗倍半氧化物及其衍生物

本文综述了β-羧基乙基锗倍半氧化物及其衍生物的生物活性、合成方法以及该领域最新研究动向。