Catalytic Cross-Coupling Reactions

A robust heterogeneous palladium catalyst was constructed by immobilizing a 1,10-phenanthroline-Pd(II) complex onto mesoporous SBA-15 silica via post-synthetic surface functionalization. The catalyst, SBA-15@PHEN-Pd(II), was prepared through sequential silylation of SBA-15, covalent anchoring of 5-amino-1,10-phenanthr…

ABSTRACT Theophylline, a naturally occurring xanthine derivative with well‐established pharmaceutical applications, has recently emerged as an attractive scaffold in coordination chemistry and catalysis because of its unique heterocyclic structure and donor properties. In this study, two novel N(7)‐substituted theophy…

High Resolution Image Download MS PowerPoint Slide Herein, we report unprecedented protocols for the synthesis of 1,2,3,4-tetrasubstituted benzenes and 3-alkenyl-1,2-dihydropyridines from readily available N -methyl- N -propargyl β-enaminones. When subjected to the reaction with dialkyl acetylenedicarboxylates in refl…

Herein, we present a novel strategy for the efficient synthesis of fused azepinone frameworks from allene-tethered oximes and arylboronic acids through a domino effect comprising a Chan-Lam coupling, [3 + 2] cycloaddition, [3,3]-sigmatropic rearrangement, and imine-enamine tautomerization with good to excellent yields…

In the search for efficient and stable catalyst systems for organic reactions, N-heterocyclic carbene (NHC) precursors have played an important role in modern organometallic chemistry. Three new benzimidazolium bromide salts were prepared by alkylation of benzimidazole derivatives in this work. The chemical structures…

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ABSTRACT Substituent‐controlled reagent reactivity offers a powerful strategy in organic synthesis, enabling chemists to predict and modify reaction outcomes. We herein report a novel, mild, and selective N─H functionalization of arylamines in which the reactivity of DMSO (dimethyl sulfoxide) is modulated by the elect…

This work presents a metal-free, nitrogen-vacancy engineered carbon nitride (Nv-CN) photocatalyst enabling highly selective oxidative C(sp 3 )–P bond formation between tertiary amines and organophosphorus compounds under sustainable conditions.

In this study, a Schiff base ligand (Sadpa) was synthesized and subsequently employed for the preparation of mixed-ligand Co(II) and Pd(II) complexes containing 1,10-phenanthroline. The resulting complexes were comprehensively characterized using complementary physicochemical techniques. In addition, DFT calculations…

In this study, a Schiff base ligand (Sadpa) was synthesized and subsequently employed for the preparation of mixed-ligand Co(II) and Pd(II) complexes containing 1,10-phenanthroline. The resulting complexes were comprehensively characterized using complementary physicochemical techniques. In addition, DFT calculations…

In this study, a Schiff base ligand (Sadpa) was synthesized and subsequently employed for the preparation of mixed-ligand Co(II) and Pd(II) complexes containing 1,10-phenanthroline. The resulting complexes were comprehensively characterized using complementary physicochemical techniques. In addition, DFT calculations…

This study introduces a thermoresponsive hybrid hydrogel catalyst that integrates a poly(N-isopropylacrylamide) (poly(NIPAM)) core, palladium catalytic centers, and a biobased alginate shell to enable efficient aqueous-phase reduction of nitroarene derivatives. Core–shell alginate gel beads were successfully fabricate…