One-pot A3-coupling solvent-free synthesis of propargylamines by Pd-impregnated Al-based LDHs synthesized from aluminum salt slag

被引：1

作者：

Thampikannu, Raihamol Erattammottil ^{[1
]}

Jimenez, Alejandro ^{[2
]}

Rives, Vicente ^{[2
]}

Vicente, Miguel Angel ^{[2
]}

Vellayan, Kannan ^{[1
]}

机构：

[1] Govt Coll Kattappana, Dept Chem, Kattappana 685508, Kerala, India

[2] Univ Salamanca, Dept Quim Inorgan, GIR QUESCAT, Salamanca 37008, Spain

来源：

MOLECULAR CATALYSIS | 2024年 / 569卷

关键词：

Salt cake; Layered Double Hydroxides; Paladium; Propargylamine synthesis; A; 3; coupling; 3-COMPONENT COUPLING REACTIONS; CATALYTIC-ACTIVITY; REUSABLE CATALYST; TERMINAL ALKYNES; EFFICIENT; NANOPARTICLES; ALDEHYDES; AMINES; NANOCATALYST; ADSORPTION;

D O I：

10.1016/j.mcat.2024.114594

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Several Al3+-based 3+ -based LDHs with different divalent cations have been synthesized by coprecipitation from aluminum salt slag and have been impregnated with Pd. After their characterization by PXRD, FT-IR, thermal analysis, N2 2 adsorption-desorption isotherms at -196 degrees C and electron microscopy (SEM and TEM), they were used as heterogeneous catalysts in the A3-coupling 3 -coupling reaction (benzaldehyde + morpholine + phenylacetylene) to produce propargylamines. The catalyst that showed the best results was NiAl-Pd and the optimal reaction conditions were: catalyst dose 30 mg, temperature 80 degrees C and reaction time 6 h. In addition, this catalyst showed a good cyclic behavior, retaining a catalytic activity higher than 80 % after 4 cycles.

引用

页数：11

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