bridged aromatic azo compounds (AAzos) from aromatic amines was developed by using red copper as catalyst. Despite numerous efforts towards the catalytic synthesis of symmetric and asymmetric AAzos derivatives, most reactions present certain drawbacks inhibiting their industrial applications, such as laborious multi-step processes, harsh reaction conditions and expensive reagents. And the synthesis
Functionalized Lanthanide(III) Complexes Constructed from Azobenzene Derivative and β-Diketone Ligands: Luminescent, Magnetic, and Reversible Trans-to-Cis Photoisomerization Properties
作者:Li-Rong Lin、Hui-Hui Tang、Yun-Guang Wang、Xuan Wang、Xue-Ming Fang、Li-Hua Ma
DOI:10.1021/acs.inorgchem.6b02819
日期:2017.4.3
trifluoroacetate anion presented as a ligand and a counterion to form the quaternary units with lanthanide(III) ions (La, Eu, and Gd), [Ln(tfd)2(PBPM)(CF3CO2)] (LnC47H34F9N6O7) and [Ln(tfd)2(dmPBPM)(CF3CO2)] (LnC49H39F9N7O7), where the lanthanide(III) ions are nine coordinated with N3O6 donor sets. All six complexes were structurally characterized, and four crystals were obtained and further analyzed by means
操纵了由偶氮苯官能化的配体的配位能力,以及两个新的螯合配体,(E)-4-(苯基二氮烯基)-N,N-双(吡啶-2-基甲基)苯并肼(C 25 H 22 N 6 O,PBPM )和(E)-4-((4-(二甲基氨基)苯基)二氮烯基)-N,N-双(吡啶-2-基甲基)苯甲酰肼(C 27 H 27 N 7O,dmPBPM),被合成。配体可提供四个配位原子(一个氧和三个氮)与四种β-二酮酸酯(4,4,4-三氟-1-苯基丁烷-1,3-二酸酯,tfd)一起用作四烯酸酯配体。呈现为配位体和抗衡离子的三氟乙酸盐阴离子与镧系元素,以形成季单元(III)离子(镧,Eu和Gd)的,[LN(TFD)2(PBPM)(CF 3 CO 2)](LNC 47 ħ 34 F 9 N 6 O 7)和[Ln(tfd)2(dmPBPM)(CF 3 CO 2)](LnC 49 H 39 F 9 N 7O 7),其中镧系元素(III)离子与N
PROTEASOME INHIBITORS
申请人:Macherla Venkat Rami Reddy
公开号:US20090298906A1
公开(公告)日:2009-12-03
Disclosed herein are compounds of Formula (I) that include a sulfonate ester, ester or ether group. Compounds of Formula (I) can be included in pharmaceutical compositions, and can be used to treating and/or ameliorating a disease or condition, such as cancer, a microbial disease and/or inflammation.
Rh(III)-Catalyzed Synthesis of Indazolo[2,3-<i>a</i>]quinolines: Vinylene Carbonate as C1 and C2 Building Blocks
作者:Wei Hu、Chao Pi、Di Hu、Xiliang Han、Yangjie Wu、Xiuling Cui
DOI:10.1021/acs.orglett.2c00580
日期:2022.4.15
rhodium-catalyzed cyclization of azobenzenes and vinylene carbonate via C–H bond activation to construct indazolo[2,3-a]quinolines has been developed. This protocol offers an efficient method for synthesis of the titled products in good yields with broad functional group tolerance. In this reaction, three C–C bonds and C–N bond are formed in one pot, and vinylene carbonate (VC) acts as C1 and C2 synthons as well as
铑催化偶氮苯和碳酸亚乙烯酯通过C-H键活化环化制备吲唑并[2,3- a ]喹啉。该协议提供了一种有效的方法来合成具有广泛功能组耐受性的高产量的标题产品。在这个反应中,三个C-C键和C-N键在一锅中形成,并且碳酸亚乙烯酯(VC)作为C1和C2合成子以及“亚乙烯基转移”剂和酰化剂构建目标融合杂环。此外,这些产品表现出良好的荧光特性,表明它们具有作为荧光材料和生物传感器的潜在应用。
<i>N</i>,<i>N</i>-Diisopropylethylamine-Mediated Electrochemical Reduction of Azobenzenes in Dichloromethane
作者:Hongyan Zhou、Rundong Fan、Jingya Yang、Ximei Sun、Xiaojun Liu、Xi-Cun Wang
DOI:10.1021/acs.joc.2c01949
日期:2022.11.4
report a cathodic reduction-dominated electrochemical approach for the hydrogenation of azobenzenes in dichloromethane. With cheap and readily available N,N-diisopropylethylamine as a catalytic mediator, the reaction proceeded smoothly in a simple undivided cell under constant-current electrolysis. A series of azobenzenes were successfully reduced to the corresponding hydrazobenzenes in moderate to high