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Enantioselective Synthesis of Sealutomicin C. [PDF]

open access: yesJ Am Chem Soc
The sealutomicins are a family of anthraquinone antibiotics featuring an enediyne (sealutomicin A) or Bergman-cyclized aromatic ring (sealutomicins B–D).
Astle SM   +6 more
europepmc   +2 more sources

Enantioselective synthesis of chiroplasmonic helicoidal nanoparticles by nanoconfinement in chiral dielectric shells [PDF]

open access: yesNature Communications
Helicoid metal nanoparticles with intrinsic chirality have unveiled tailorable properties and unlocked many chirality-related applications across various fields.
Xiaoxi Luan   +10 more
doaj   +2 more sources

Organocatalytic enantioselective synthesis of double S-shaped quadruple helicene-like molecules [PDF]

open access: yesNature Communications
Helicene-shaped molecules are compelling chemical structures with unique twisted helical chirality and remarkable properties. Although progress occurs in the catalytic asymmetric synthesis of helicene (-like) molecules, the enantioselective synthesis of ...
Shengli Huang   +7 more
doaj   +2 more sources

Enantioselective Synthesis of Oxazocines via MQ‐Phos Enabled Palladium‐Catalyzed Asymmetric Formal [4+4]‐Cycloadditions [PDF]

open access: yesAdvanced Science
Oxazocines are key structural intermediates in the synthesis of natural products and pharmaceutical molecules. However, the synthesis of oxazocines especially in a highly enantioselective manner, is a long‐standing formidable challenge due to unfavorable
Qiaojing Meng   +6 more
doaj   +2 more sources

Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation

open access: yesChemical Reviews, 2021
Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral ...
Albert Cabré, X. Verdaguer, A. Riera
semanticscholar   +1 more source

On the Origins of Life's Homochirality: Inducing Enantiomeric Excess with Spin-Polarized Electrons [PDF]

open access: yesProc. Natl. Acad. Sci. U.S.A. 119 (2022), 2022
Life as we know it is homochiral, but the origins of biological homochirality on early Earth remain elusive. Shallow closed-basin lakes are a plausible prebiotic environment on early Earth, and most are expected to have significant sedimentary magnetite deposits.
arxiv   +1 more source

Enantioselective chiral orientation induced by a combination of a long and a short laser pulse [PDF]

open access: yesPhys. Rev. A 105, 033113 (2022), 2021
Enantioselective orientation of chiral molecules excited by a shaped picosecond laser pulse and a delayed femtosecond pulse is considered. Using quantum mechanical simulations, we demonstrate a strong field-free enantioselective orientation along the laser propagation direction.
arxiv   +1 more source

Optimal Selective Orientation of Chiral Molecules Using Femtosecond Laser Pulses [PDF]

open access: yesJ. Chem. Phys. 157, 034304 (2022), 2022
We present a comprehensive study of enantioselective orientation of chiral molecules excited by a pair of delayed cross-polarized femtosecond laser pulses. We show that by optimizing the pulses' parameters, a significant (~ 10%) degree of enantioselective orientation can be achieved at zero and at five kelvin rotational temperatures.
arxiv   +1 more source

Synthesis of achiral rod-shaped triazolic molecules and investigation of their striped texture and propeller-patterned nematic droplets [PDF]

open access: yesLiquid Crystals 50, 1324 (2023), 2023
In this study, novel achiral mesogens containing 4,4'-biphenyl central core connected on both sides through an ester function to 1-(4-(alkyloxy)phenyl)-1H-[1,2,3]-triazolyl group have been synthesized and characterized. Different mesophases have been identified, with the appearance of both a periodic striped pattern and propeller-patterned droplets ...
arxiv   +1 more source

Catalytic enantioselective reductive alkynylation of amides enables one-pot syntheses of pyrrolidine, piperidine and indolizidine alkaloids

open access: yesNature Communications, 2023
The primary objective in synthetic organic chemistry is to develop highly efficient, selective, and versatile synthetic methodologies, which are essential for discovering new drug candidates and agrochemicals. In this study, we present a unified strategy
Fang-Fang Xu   +3 more
doaj   +1 more source

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