Results 241 to 250 of about 107,976 (280)

Easier, Safer, and Greener: Unlocking the Power of Solid Reagents in Organic Reactions by Mechanochemistry

ChemistryEurope, EarlyView.
This review highlights the powerful synergy between mechanochemistry and solid reagents to replace hazardous substances traditionally used in organic synthesis. Such an approach offers a safer and more sustainable pathway for conducting organic reactions, with potential benefits in both reactivity and selectivity. The use of solid bases, acids, and gas
Adrien Gallego, Nicolas Pétry, Julien Pinaud, Olivia Giani, Frédéric Lamaty   +4 more
wiley   +1 more source

The Chemistry of Subphthalocyanines: Synthetic Strategies for their Axial, Peripheral, and Remote Postfunctionalization

ChemistryEurope, EarlyView.
From axial and peripheral reactivity to remote derivatization, the chemical versatility of subphthalocyanines (SubPcs) renders them ideal scaffolds for the design of advanced functional materials. This review assembles the synthetic toolbox, key reaction conditions, and future challenges in SubPc functionalization, guiding the development of next ...
Marta Gómez‐Gómez, Juan Laforga‐Martín, Jorge Labrador‐Santiago, Jorge Labella, Tomás Torres   +4 more
wiley   +1 more source

Cyclization of Citronellal to Isopulegol Catalyzed by Temperature‐Stable Aluminum Complexes with Tripodal Tris(silanolate) Ligands

ChemistryEurope, EarlyView.
C3‐Symmetric aluminum chelate complexes endowed with tripodal tris‐silanolate ligands are shown to be excellent catalysts for the selective carbonyl ene‐type cyclization of citronellal to isopulegol as the key intermediate of the current industrial syntheses of menthol.
J. Nepomuk Korber, Alois Fürstner
wiley   +1 more source

Imidazoline‐Proline and Imidazoline‐Prolinate Ligands for Copper‐Catalyzed Asymmetric Exo‐Selective [3 + 2] Cycloaddition of Iminoesters with Nitroalkenes

ChemistryEurope, EarlyView.
From a modular synthesis of nonphosphine chiral nitrogen‐based chiral imidazoline–amino acid ligands, two new chiral imidazoline–proline‐copper catalysts are developed for targeting exo‐selective [3 + 2] cycloaddition reaction. Density functional theory studies rationalize the observed stereoselectivity and the distinct chiral pockets of the two ...
Yan Yu, Takuya Shimada, Chihiro Tokumitsu, Ayaka Fujiwara, Takayoshi Arai   +4 more
wiley   +1 more source

Well‐Defined Rhodium and Iridium Complexes Containing Chiral Cyclic(Alkyl)(Amino)Carbenes for Asymmetric Hydrogenation

ChemistryEurope, EarlyView.
A set of fourteen well‐defined rhodium and iridium complexes containing various enantiopure cyclic(alkyl)(amino)carbene (ChiCAAC) ligands (>96% ee to > 99.5% ee) has been synthesized and fully characterized. While no enantioselectivity is observed with chiral Rh‐CAAC, the Ir‐CAAC counterparts demonstrated good performances in the asymmetric ...
Fanny Morvan, Meng Liu, Thomas Vives, Thierry Roisnel, Nicolas Vanthuyne, Rodolphe Jazzar, Joanna Wencel‐Delord, Marc Mauduit   +7 more
wiley   +1 more source

Total Synthesis and Complete Stereochemical Assignment of Amphirionin‐5, a Potent Natural Osteoblasts Proliferator

ChemistryEurope, EarlyView.
The convergent total synthesis of a candidate diastereomer of amphirionin‐5 was accomplished in 22 steps via the coupling of the C1‐C16 enone segment and the C17‐C28 aldehyde segment using Stetter reaction. The overall stereochemistry of amphirionin‐5 was fully assigned, based on the comparison of spectroscopic and chiroptical data between the ...
Yusuke Ogura, Kenji Nemoto, Tadafumi Fujita, Yuta Inori, Daisuke Abe, Hironori Okamura, Hirosato Takikawa, Shigefumi Kuwahara   +7 more
wiley   +1 more source

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Enantiomer-dependent immunological response to chiral nanoparticles

Nature, 2022
Liguang Xu, Maozhong Sun, Won Jin Choi
exaly   +2 more sources

Chiral recognition and enantiomer excess determination based on emission wavelength change of AIEgen rotor

Nature Communications, 2020
Chiral recognition, such as enantioselective interactions of enzyme with chiral agents, is one of the most important issues in the natural world. But artificial chiral receptors are much less efficient than natural ones.
Ming Hu, Ying-Xue Yuan, Minghua Liu
exaly   +2 more sources

Enantiomer-Selective Molecular Sensing Using Racemic Nanoplasmonic Arrays

Nano Letters, 2018
Building blocks of life show well-defined chiral symmetry which has a direct influence on their properties and role in Nature. Chiral molecules are typically characterized by optical techniques such as circular dichroism (CD) where they exhibit ...
Jose Garcia-Guirado, Mikael Svedendahl, Joaquim Puigdollers   +2 more
exaly   +2 more sources

Homochiral porous nanosheets for enantiomer sieving

Nature Materials, 2018
Yongju Kim, Huaxin Wang, Myongsoo Lee
exaly   +2 more sources