Results 151 to 160 of about 35,698 (262)

Triptindane‐9,10,11‐triol: Threefold Hydride Transfer from Lithium Aluminum Hydride as the Key Step to C3‐Symmetrically Trifunctionalized Tribenzo[3.3.3]propellanes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 15, 22 April 2026.
Threefold reduction of 9,10,11‐triptindanetrione with LiAlH4 or NaBH4 yields exclusively the C3‐symmetric triol, suggesting an intracomplex (“rolling”) mechanism. However, use of LiAlH4/LiAlD4 (1 : 1) reveals a preceding hydride exchange. Mechanistic implications are discussed including the reduction of the related diketone.
Thorsten Hackfort   +5 more
wiley   +1 more source

Fatty Acid and Amino Acid Derivatives in Organocatalyzed Michael Additions. [PDF]

open access: yesMolecules
Flis A   +7 more
europepmc   +1 more source

The use of multiple liquid chromatography methods augmented by phosphorus-31 nuclear magnetic resonance to characterize the diastereomer composition in synthetic oligonucleotides. [PDF]

open access: yesJ Chromatogr A
Ali M   +12 more
europepmc   +1 more source

Steering the Shape‐shifting of Bullvalene‐PdII Complexes Through Steric and Geometric Strain

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
This study explores the use of bis‐pyridyl substituted bullvalenes as dynamic shape‐shifting ligands within cis‐capped PdII complexes. The ring position of the pyridyl nitrogen is critical, leading to a range of Pd2L2 metallacycles and simple PdL complexes, each with distinctive bullvalene isomer preferences (represented in the figure by A‐D isomer ...
André P. Birvé   +2 more
wiley   +2 more sources

Multichiral Half-Sandwich Ru(II) and Os(II) Anticancer Complexes Containing a Glutathione Synthesis Inhibitor. [PDF]

open access: yesOrganometallics
Kumari P   +10 more
europepmc   +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

A Convenient, Safe, and Atom‐Economical Route to a Large Portfolio of Grubbs‐Type Catalysts for Olefin Metathesis via Four‐Coordinate Ruthenium Alkylidynes

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Mingxu Cui, Alois Fürstner
wiley   +2 more sources

Bioinspired Collective Synthesis of Gymnothelignans I, F, K, and L. [PDF]

open access: yesJ Org Chem
Chumsri N   +6 more
europepmc   +1 more source

Harnessing Toluene Solvent as a Reactant: Regioselective Benzyl Radical Addition to Multi‐π 1,5‐Enynes in a Copper‐Catalyzed Cascade to Indenes

open access: yesChemistry – A European Journal, Volume 32, Issue 14, 15 April 2026.
A copper‐catalyzed three‐component radical cascade of 1,5‐enynes with toluene and benzoic acids enables regioselective benzyl radical addition to multi‐Π systems, efficiently delivering polysubstituted indenes from an abundant solvent feedstock. ABSTRACT C─H activation of toluene generates a benzyl radical that undergoes C─C coupling, converting an ...
Saideh Rajai‐Daryasarei   +7 more
wiley   +1 more source

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