Results 161 to 170 of about 175,197 (281)

Pharmaceuticals Made with Hydrogen: A Sustainable and Efficient Approach Using Flow Synthesis

open access: yesChemistry – A European Journal, EarlyView.
We demonstrate a sustainable strategy for pharmaceutical manufacturing by combining hydrogen, heterogeneous catalysis, and continuous flow synthesis. The development of novel catalysts and their application in a multi‐step synthesis of donepezil enabled a highly productive process with no intermediate purification.
Shū Kobayashi, Haruro Ishitani
wiley   +1 more source

AgBF4‐Induced Site‐Selective Synthesis of 4‐Sulfonylindoles in Au‐Catalyzed Cyclization‐Sulfonyl Migration Reactions

open access: yesChemistry – A European Journal, EarlyView.
Site‐selective synthesis 4‐suflonylindoles was achieved by a cyclization‐rearrangement strategy by π‐Lewis acidic gold catalysts and the aid of silver cocatalyst. Particularly, the use of 3 equivalents of AgBF4 to SPhosAuCl is crucial for C4‐selective migration of the sulfonyl group.
Itaru Nakamura   +2 more
wiley   +1 more source

Chemoselective Synthesis of δ-Amino Alcohols from Chiral 1,4-Diols Catalyzed by an NHC-Ir(III) Complex. [PDF]

open access: yesOrg Lett
Silvi E   +5 more
europepmc   +1 more source

Fluorescence Properties and Mg2+ Selectivity of Aryl‐Alkynyl Derivatives of the o‐Aminophenoltriacetate (APTRA) Ligand

open access: yesChemistry – A European Journal, EarlyView.
It is a challenge to improve the selectivity of high‐denticity ligands for Mg2+ over Ca2+. We show that in aryl‐alkynyl derivatives of APTRA, electron‐withdrawing substituents lower the binding affinity for Ca2+ more than Mg2+, making the ligand more selective for Mg2+.
Laura L. Duncan   +2 more
wiley   +1 more source

Elucidating the Multicomponent Reaction Pathway of 2‑Pyrrolidone Synthesis. [PDF]

open access: yesACS Omega
Dueñas-Deyá A   +2 more
europepmc   +1 more source

Silent Partners in the Mill: Unveiling the Role of Additives in Mechanochemical Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Mechanochemistry offers a sustainable, solvent‐free alternative to traditional synthesis, often enhanced by additives in a process known as additive‐assisted grinding. This review discusses how various additives, including liquids, ionic solids, and advanced materials like ionic liquids and piezoelectric compounds, improve reaction efficiency ...
Johanna Breinsperger   +3 more
wiley   +1 more source

Aniline-induced refractory methemoglobinemia in polytrauma: successful management with erythrocytapheresis. [PDF]

open access: yesInt J Emerg Med
Lečbychová K   +5 more
europepmc   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma   +4 more
wiley   +1 more source

Metal-Organic Framework/Organocatalyst Combinations as Powerful Multicatalytic Systems for Aerobic Oxidations. [PDF]

open access: yesAngew Chem Int Ed Engl
Arango-Daza JC   +5 more
europepmc   +1 more source

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