template-free ionic carbon nitride nanotubes (K-g-C3N4) were created via thermal polymerizing and aqueous alkaline liquid-phase exfoliation. The characterization of alkaline K-doped ionic graphitic carbon nitride (K-g-C3N4) was determined by FT-IR, SEM, EDS, and TGA analysis. A simple, facile, and efficient synthesis of 2-amino-5-alkylidene-thiazol-4-ones derivatives via a multicomponent reaction of various
石墨氮化碳 (gC 3 N 4 ) 具有类似于石墨的层状结构,并在有机转化中提供令人兴奋和独特的支持。使用边缘功能化的石墨氮化碳通过掺杂各种官能团并将其转变为另一种形态已成为近十年来关注的焦点。具有弱碱性的富氮结构;因此,它必须通过各种功能化来改善其性能。在此,首次通过热聚合和水性碱性液相剥离制备了无模板离子氮化碳纳米管(KgC 3 N 4 )。碱性K掺杂离子石墨碳氮化碳(KgC 3N 4 ) 通过FT-IR、SEM、EDS和TGA分析确定。 使用可重复使用的 KgC 3 N 4作为绿色催化剂,通过各种醛、胺和罗丹宁在乙醇中的多组分反应,简单、简便、高效地合成 2-氨基-5-亚烷基-噻唑-4-酮衍生物。发达。通过用罗丹明改变醛和胺的结构来探索反应范围。各种 2-氨基-5-亚烷基-噻唑-4-酮在 60-180 分钟内的产率范围在 65% 和 96% 之间。由于 KgC 3 N 4的异质性,催
An Efficient One-pot Synthesis of 2-Amino-5-arylidenethiazol-4-ones Catalyzed by MgO Nanoparticles
作者:Narges Shariati、Robabeh Baharfar
DOI:10.1002/jccs.201300425
日期:2014.3
AbstractA mild and efficient protocol for the synthesis of 2‐amino‐5‐arylidene‐1,3‐thiazol‐4(5H)‐ones is reported by three component reaction of aldehydes, rhodanine and secondary amines in the presence of magnesium oxide nanoparticles as heterogeneous nanocatalyst in good yields and short reaction times.
γ-Aminobutyric acid hydrochloride supported on superparamagnetic γ-Fe2O3@SiO2 as a novel heterogeneous nanocatalyst for the synthesis of 2-amino-5-alkylidene-thiazol-4-one derivatives
作者:Hadi Mohammadi、Hamid Reza Shaterian
DOI:10.1007/s13738-018-1527-4
日期:2019.3
γ-Aminobutyric acid hydrochloride immobilized on superparamagnetic γ-Fe2O3@SiO2 nanoparticles as a novel heterogeneous nanocatalyst was prepared for the first times. It was characterized by several techniques such as XRD, FT-IR, VSM, FE-SEM, EDS, and TGA analysis. The heterogeneous nanocatalyst was used for a convenient, mild, and one-potefficientthree-componentpreparation of 2-amino-5-alkylidene-thiazol-4-one