Synthesis of indeno and acenaphtho cores containing dihydroxy indolone, pyrrole, coumarin and uracil fused heterocyclic motifs under sustainable conditions exploring the catalytic role of the SnO<sub>2</sub> quantum dot
作者:Koyel Pradhan、Sanjay Paul、Asish R. Das
DOI:10.1039/c4ra12618a
日期:——
SnO2 QD was prepared using a simple solvothermal method and characterized using X-ray diffraction and transmission electron spectroscopy images. The easyrecovery of the catalyst and high yield of the products make the protocol attractive, sustainable and economic. The catalyst was reused for seven cycles with almost unaltered catalytic activity. The lowcost, ease of handling and the simplicity of this
Fe3O4 magnetic nanoparticles in the layers of montmorillonite as a valuable heterogeneous nanocatalyst for the one-pot synthesis of indeno[1,2-b]indolone derivatives in aqueous media
作者:Javad Safari、Narges Hosseini Nasab
DOI:10.1007/s11164-018-3659-7
日期:2019.3
spectrophotometry (FT-IR). Then, indeno[1,2-b]indolone derivatives were catalyzed by magnetic MMT@Fe3O4-NPs. MMT@Fe3O4-NPs were found to be a recoverable organocatalyst for the effective synthesis of the indeno[1,2-b]indolone derivatives via one-potmulticomponent cyclocondensation of ninhydrin, 1,3-diketo compound and amine derivatives in water. The significant advantages of this method are excellent yield
在本工作中,使用化学共沉淀法制备了氧化铁纳米颗粒(Fe 3 O 4 -NPs)。在室温下,将Fe 3 O 4 -NPs置于层间空间和蒙脱土(MMT)的外表面作为负载固体。MMT @ Fe 3 O 4的特征在于X射线衍射(XRD),扫描电子显微镜(SEM),能量色散X射线光谱(EDX),振动样品磁力计(VSM),热重分析(TGA)和傅里叶变换红外分光光度法(FT-IR)。然后,磁性MMT @ Fe 3 O 4 -NPs催化茚并[1,2- b ]吲哚酮衍生物。MMT @铁发现3 O 4 -NPs是通过茚三酮,1,3-二酮化合物和胺衍生物在水中的一锅多组分环缩合有效合成茚并[1,2- b ]吲哚酮衍生物的有机催化剂。该方法的显着优点是优异的收率,温和的条件,对环境友好的催化剂,费用低以及不使用对环境有害的催化剂或溶剂。
Ionic liquid coated sulfonated carbon@titania composites for the one-pot synthesis of indeno[1,2-b]indole-9,10-diones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones in aqueous media
作者:Manmeet Kour、Madhvi Bhardwaj、Harsha Sharma、Satya Paul、James H. Clark
DOI:10.1039/c7nj00361g
日期:——
under aqueous conditions by creating a hydrophobic environment on the catalyst surface. The catalytic activity of the newly designed catalyst was tested in the one-pot multicomponent synthesis of indeno[1,2-b]indole-9,10-diones and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones in aqueous media. The structure of the most active catalyst, C@TiO2–SO3H–IL1, before and after the coating with the ionic liquid was
通过将长链离子液体涂覆在磺化碳@二氧化钛复合材料上,制备了高活性和稳定的基于离子液体的新型固体布朗斯台德酸催化剂(C @ TiO 2 -SO 3 H-ILs)。离子液体涂料通过在催化剂表面形成疏水环境,在水性条件下产生了C @ TiO 2 -SO 3 H-IL的有效稳定性和活性。在一锅多组分合成茚并[1,2 - b ]吲哚-9,10-二酮和1 H-吡唑并[1,2 - b ]酞嗪-5,10中测试了新设计催化剂的催化活性。-二酮在水性介质中。活性最高的催化剂C @ TiO 2 –SO 3的结构FTIR,TGA,XRD,CHNS,EDX,SEM和HRTEM研究了离子液体包被前后的H–IL1。该催化剂可轻松回收,并具有出色的可重复使用性,最多可进行五次催化运行,而不会损失活性。
Synthesis of 4-hydroxyindole fused isocoumarin derivatives and their fluorescence “Turn-off” sensing of Cu(<scp>ii</scp>) and Fe(<scp>iii</scp>) ions
A simple and efficient protocol has been developed for the synthesis of 4-hydroxyindole fused isocoumarins from easily available starting materials.
已经开发了一种简单高效的协议,用于从易得的起始材料合成4-羟基吲哚并噻吩酮。
Sonocatalysis green synthesis of indeno[1,2‐b]indolone derivatives using CuFe<sub>2</sub>O<sub>4</sub>@CS‐SB nanocomposite as a reusable catalyst under mild conditions
作者:Hannaneh Hassanpour、Hossein Naeimi
DOI:10.1002/aoc.7406
日期:2024.5
this literature, the synthesis of indeno[1,2-b]indolone from starting materials of ninhydrin, derivatives of aniline, and dimedone by using copper ferrite anchored to chitosan bearing Schiff base (CuFe2O4@CS-SB) as a catalyst in water solvent under ultrasound irradiation was described. This catalyst was designed, fabricated, and characterized by the FT-IR, 1HNMR, XRD, SEM, TGA, mapping scan, EDX,
在该文献中,以茚三酮、苯胺衍生物和双甲酮为起始原料,通过使用锚定于壳聚糖希夫碱(CuFe 2 O 4 @CS-SB)的铁酸铜作为载体合成茚并[1,2-b]吲哚酮。描述了超声波照射下在水溶剂中的催化剂。该催化剂通过 FT-IR、1 H NMR、XRD、SEM、TGA、映射扫描、EDX 和 BET 技术进行设计、制造和表征。这种制备的酸性、有效的多相催化剂可在 1 至 7 分钟的极短反应时间内催化茚并吲哚酮衍生物的绿色合成,收率高达 95% 至 99%。此外,还使用 FT-IR、1 H NMR 和熔点分析来鉴定作为有机产物的吲哚酮的合成。