12,52-二羟基-15,55-二甲基-14,16,34,36,54,56,74,76-八硝基-2,4,6,8-四氧桥连-1,3,5,7（1,3）-杯[4]芳烃的合成

以1,5-二氟-2,4-二硝基苯和3,4,5-三甲氧基甲苯为起始原料,经环化、甲基化、硝化和去甲基化反应，合成了一种新型杯芳烃衍生物，其结构经¹H NMR，¹³C NMR，¹⁵N NMR和元素分析表征。      

反应型阻燃剂三(2-羟乙基)磷酸酯的合成及性能评价

以三氯氧磷和乙二醇为原料，合成了一种反应型无卤阻燃剂三（2-羟乙基）磷酸酯（1），其结构和性能经¹H NMR, ¹³C NMR, ³¹P NMR, IR和TGA表征。利用 THEPP制备了含磷本质阻燃硬质聚氨酯泡沫塑料（2ⁿ, n为1的加量）并研究了其阻燃性能。结果表明：1的初始分解温度为164.8 ℃, 700 ℃时的残炭率约23.8%。以20份1替代聚醚多元醇，2²⁰的极限氧指数由18.6%提高至22.5%，水平燃烧测试达到HB级并能够离火自熄。     

可见光催化胺的氧化自偶联合成亚胺

亚胺是重要的含氮活性中间体，在药物、生物和有机合成等领域应用广泛。以不同取代基的芳环和杂环苄胺为原料，在以12 W紫色LED灯为光源，蒽醌-2-羧酸为光催化剂，乙酸乙酯为溶剂，室温反应6 h的最佳条件下，合成了11个带有不同取代基的亚胺化合物(2a~2k)，产率84%~93%，其结构经¹H NMR、 ¹³C NMR和¹⁹F NMR表征，并分析了反应可能的机理。     

铜催化α,β-不饱和羧酸与ICH2 CF3的脱羧偶联反应

铜催化下,以CH₃CN和HOAc为混合溶剂,α,β-不饱和羧酸与1,1,1-三氟-2-碘乙烷（ICH₂CF₃）发生脱羧偶联反应合成了一系列三氟乙基取代烯烃,其结构经¹H NMR、¹³C NMR和HR-MS确证。¹⁹F NMR分析显示该反应具有优良的立体选择性（E/Z最高为99/1）,分离收率最高达82%。     

钌催化二氢吡嗪脱氢：一种简便合成吡嗪的方法

吡嗪是一类重要的杂环化合物，广泛应用于医药、有机合成和配位化学等领域。本文报道了一种简便，有效合成吡嗪的方法。[RuCl₂(p-cymene)]₂/KOAc催化二氢吡嗪脱氢，以43%～90%的收率得到多种吡嗪类衍生物2a～2p,采用¹H NMR、¹³C NMR、 IR和元素等手段进行表征，确证所得产物为目标化合物。     

吲哚与含CF3氮杂对亚甲基苯醌的1,6-共轭加成反应合成含CF3的吲哚衍生物

以5 mol%布朗斯特酸(±)-BNPA为催化剂，含CF₃氮杂对亚甲基苯醌与吲哚为原料，通过1,6-共轭加成反应合成了7个结构新颖的含CF₃的吲哚类化合物，收率80%~87%，其结构经¹H NMR， ¹³C NMR， ¹⁹F NMR和HR-MS(ESI)表征，并对反应机理进行了探讨。     

氧杂三螺环化合物的简便合成

以环酮和季戊四醇为原料,磷钨酸为催化剂,在甲苯中回流分水反应合成了系列氧杂三螺环化合物（3a~3h）,其中5,9,14,17-四氧杂三螺［3.2.2.3¹⁰.2⁷.2⁴］十七烷（3a）和7,11,18,21-氧杂-3,15-二硫杂三螺［5.2.2.5¹².2⁹.2⁶］二十一烷（3f）为新化合物,其结构经¹H NMR, ¹³C NMR和HR-MS(ESI)表征。并以3c的合成为模板反应,对反应条件进行了优化。     

新型2-甲基-6-(N,N-二烷基氨基)喹喔啉的合成

以4-硝基邻苯二胺为原料，经缩合、硝基还原和N-烷基化反应合成了一系列具有新颖结构的2-甲基-6-(N,N-二烷基氨基)喹喔啉，其结构经¹H NMR, ¹³C NMR, HR-MS（ESI）和XRD表征。     

芬顿预处理对木质素快速热解甲氧基脱除规律研究

采用不同H₂O₂含量的芬顿溶液对碱木质素进行预处理，并结合快速热解，探究轻质生物油中含甲氧基化合物含量的变化规律，同时研究了芬顿溶液对木质素结构的影响规律。结果表明，轻质生物油中含甲氧基团的酚类化合物峰面积从AL（未处理碱木质素）的7.3×10⁹下降至13-FML（H₂O₂含量为13 mL/g芬顿溶液预处理碱木质素）的5.2×10⁹，减少了0.29倍。而含甲基团和乙基团的酚类化合物峰面积从AL的3.9×10⁹上升到13-FML的7.2×10⁹，增加了0.85倍。同时，轻质生物油产率从22.4%提高到28.7%。通过FT-IR、¹H NMR和¹³C NMR分析发现，芬顿预处理使木质素凝缩性结构单元减少，甲氧基含量降低，为后续快速热解产生低甲氧基含量的生物油提供了有利条件。     

Wittig/Michael串联反应高效合成含有磷叶立德的吲哚并喹唑啉酮衍生物

以吲哚并[2,1-b]喹唑啉-6,12-二酮（色胺酮）及三苯基膦乙酸乙酯（酯基磷叶立德）为原料,在二氯甲烷中反应2 h,经Wittig/Michael串联反应,以高达99%的收率一步合成了15个含有吲哚并喹唑啉骨架的磷叶立德衍生物。其代表产物的结构经X-ray单晶衍射进行确证,化合物结构经¹H NMR, ¹³C NMR, ³¹P NMR, ¹⁹F NMR和HR-MS（ESI-TOF）表征。     

Syntheses of 2-hydroperoxy-and 2-hydroxy-2H-imidazoles

Oxidation of fully substituted imidazoles 1 by singlet oxygen gives in good yield fully substituted 2-hydroperoxy-2H-imidazoles 2 . Reduction of 2 by triphenylphosphine leads to 2-hydroxy-2H-irnidazoles 3 . Limitations of the methods are reported.     

Electrochemical study of (NEt4)2Cl2FeS2MoS2 and (NEt4)2Cl2FeS2MoS2FeCl2

Summary The ability of [MoS₄]^2–, anions to be used as ligands for transition metal ions has been widely demonstrated, especially with Fe²⁺. The present study has been restricted to linear complexes such as (NEt₄)₂ [Cl₂FeS₂MoS₂] and (NEt₄)₂[Cl₂FeS₂MoS₂FeCl₂]. Their electrochemical properties are described: upon electrochemical reduction, these compounds yield MoS₂, as a black precipitate, and an iron complex in solution, assumed to be [SFeCl₂]^2–. The electrochemical reduction goes through two electron transfers, coupled with the breakdown of the molecular skeleton: a DISPl and an ECE mechanism. Depending on the solvent, the following equilibrium may be observed: [Cl₄Fe₂MoS₄]^2–[Cl₂FeMoS₄]^2–+FeCl₂. The equilibrium constant, K_D, was evaluated by differential pulse polarography. K_D is tightly related to the donor number of the solvent.     

Homopolymerization of 2-alkyl- and 2-aryl-2-oxazolines

2-Aryl- and 2-alkyl-2-oxazolines have been polymerized to poly-(N-aroyl)aziridines and poly(N-acyl)aziridines, respectively, in the presence of boron trifluoride. The polymers obtained were glassy, light yellow resins with molecular weights ranging from 3500 to 7500 (35–50 oxazoline units per chain). The polymerization rates have been determined for several of these monomers. A polymerization mechanism is proposed.     

Stereoselective synthesis of 2-deoxy-beta-galactosides via 2-deoxy-2-bromo- and 2-deoxy-2-iodo-galactopyranosyl donors

[reaction: see text] A series of 2-bromo- and 2-iodo-galactopyranosyl acetates and trichloroacetimidates were evaluated as glycosyl donors for the synthesis of 2-deoxygalactopyranosides. The best selectivity for the beta-glycosidic linkage was achieved by using 6-deoxy-3,4-carbonate-protected galactosyl donors.     

Real structure of SrSi2O2N2

SrSi₂O₂N₂ is an important host lattice for Eu²⁺ doped phosphors. Its crystal structure (space group P1, a = 7.0802(2) Å, b = 7.2306(2) Å, c = 7.2554(2) Å, α = 88.767(3)°, β = 84.733(2)°, γ = 75.905(2)° and V = 358.73(2) Å³, Z = 4) is isotypic with EuSi₂O₂N₂: highly condensed silicate layers are separated by Sr²⁺. The samples are characterized by pronounced real structure effects owing to pseudosymmetry of partial structures. Polysynthetic twinning with domains of various sizes is ubiquitous and oriented intergrowth of domains with different orientations has also been observed and analysed in detail by means of electron diffraction and high-resolution electron microscopy. These effects also affect the X-ray powder pattern and were taken into account in a Rietveld refinement.