Results 191 to 200 of about 86,276 (266)

Information theoretical study of the chirality of enantiomers [PDF]

open access: yes, 2009
Borgoo, Alex   +4 more
core   +1 more source

Aldol Reactions of Germyl Dienolates With Precise Control Over Regioselectivity and Perfect Diastereoselectivity

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 8, 15 April 2026.
Achieving selective aldol reactions using dienolates as nucleophiles is challenging due to the potential formation of up to eight different regioisomeric and stereoisomeric aldol adducts. This study demonstrates that Ge dienolates can facilitate highly diastereoselective aldol reactions. Furthermore, the key role of the solvents is also clarified.
Taishi Nojima   +2 more
wiley   +1 more source

Rapid and Stereoselective Ring‐Opening Polymerization of rac‐Lactide Enabled by a Chiral Cyclopropenimine–Thiourea Catalyst

open access: yesAngewandte Chemie, Volume 138, Issue 15, 6 April 2026.
Chiral cyclopropenimine–thiourea organocatalysts enabled both high reactivity and precise stereocontrol in the ring‐opening polymerization of rac‐lactide. The bifunctional system exhibited a TOF up to 1,710 h−1 with Pm = 0.90 at 25°C, and achieved Pm = 0.99 at −78°C while maintaining a TOF of 16.3 h−1.
Sumin Lee   +8 more
wiley   +2 more sources

Acid‐Catalyzed Synthesis of Si‐Stereogenic Silanes

open access: yesChinese Journal of Chemistry, Volume 44, Issue 8, Page 1212-1222, 15 April 2026.
Si‐stereogenic silanes are important structural motifs in chemical synthesis, medicinal chemistry, and materials science. However, their catalytic enantioselective synthesis has largely relied on transition‐metal catalysts. Recently, Brønsted acids have been developed as promising alternatives.
Jung Tae Han, Benjamin List
wiley   +1 more source

Induced Photoelectron Circular Dichroism as a Probe for Distinguishing Diastereotopic Lone Electron Pairs

open access: yesAngewandte Chemie, Volume 138, Issue 15, 6 April 2026.
Gas‐phase complexation of chiral methyloxirane by achiral phenol results in induced chiroptical response of phenol. Two pseudo enantiomer complexes are observed, corresponding to hydrogen bonding from phenol to either of the lone electron pair of the methyloxirane oxygen, denoted as Pro R and Pro S, with opposite chiral deformation of phenol and ...
Etienne Rouquet   +5 more
wiley   +2 more sources

Intrinsically Chiral Excimers: Water-Compatible Trityl-Based Nanoparticles as Tailored Dual Emitters of Circularly Polarized Luminescence in the Vis or NIR Regions. [PDF]

open access: yesSmall
Schievano G   +9 more
europepmc   +1 more source

Monosaccharide-Derived Enantioselectivity in SWCNT Chemoresistive VOC Sensing. [PDF]

open access: yesChemistry
Shitrit A   +10 more
europepmc   +1 more source

The Multifaceted Legacy of Thalidomide: Chemistry and Biology Driving Modern Drug Design

open access: yesChemMedChem, Volume 21, Issue 7, 14 April 2026.
Thalidomide serves as a molecular nexus linking chemistry and biology: advances in synthesis and structural understanding enable protein degradation technologies, while its immunomodulatory activity underpins anti‐inflammatory and anticancer therapies.
Konstantina Nikovia   +4 more
wiley   +1 more source

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