Results 151 to 160 of about 56,768 (286)

The Serendipitous Discovery of Rollover Cyclometalation: From Unrecognized Observation to Transformative Chemistry

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Rollover cyclometalation is a distinctive variant of classical cyclometalation where a chelated heterocyclic ligand undergoes internal rotation, releasing one donor atom from coordination and subsequently activating a remote C─H bond with high regioselectivity.
Antonio Zucca, Maria I. Pilo
wiley   +1 more source

Nucleophilic Reactions of Cyclobutenones and the Related 4,4‐Dichlorocyclobutenone Derivatives

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Cyclobutenone derivates and their 4,4‐dichloro counterparts have an uninterrupted attention as useful synthons in the synthesis of complex organic molecules. Their nucleophilic reactions remain underexplored. This review brings attention to these reactions, whose outcome is not straightforward.
Sarah J. Wright   +2 more
wiley   +1 more source

Helical Dinaphthothiophenes Reveal the Limits of BN‐Based Optical Tuning

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A BN‐7‐thia[5]helicene and an analogous CC‐7‐thia[5]helicene were prepared in two efficient synthetic routes. Their geometrical structures barely differ, which allows us to judge the influence of the BN substitution on the electronic properties. The formal substitution of carbon–carbon (CC) units by boron–nitrogen (BN) units is an established strategy ...
Yannik Appiarius   +7 more
wiley   +1 more source

<i>Boswellia carterii</i> Essential Oil and Constituents Alleviate Anxiety-like Behavior in Zebrafish Larvae Model. [PDF]

open access: yesACS Omega
Maphanga VB   +6 more
europepmc   +1 more source

Cycloaddition Reactions of Alkynyl‐[2.2]paracyclophanes Toward Fluorenone and Benzene Analogs

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Cycloaddition reactions of ethynyl [2.2]paracyclophane and methyl 3‐( [2.2]paracyclophan‐2‐yl)propynoate were studied under different conditions. Catalytic cyclotrimerization of the former gave rise to the 2‐aryl‐[2.2]paracyclophanes. Diels–Alder reaction of the latter with tetramethylcyclobutadiene‐AlCl3 adduct furnished Dewar benzenes that were ...
Stefanie Magela Perdomo   +4 more
wiley   +1 more source

Chiral Altermagnetic Magnetoelectrics. [PDF]

open access: yesAdv Mater
Xie C   +8 more
europepmc   +1 more source

Axial Chirality Control Through Palladium‐Catalyzed Alkenylation Reactions for the Atroposelective Synthesis of 4‐Arylquinolin‐2‐ones

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Palladium(II)‐catalyzed intramolecular C─H alkenylation of cinnamides allows the atroposelective synthesis of axially chiral 4‐arylquinolones, with the chirality being installed by ring formation. DFT studies have shown that the reaction proceeds by prior activation of the alkene and the enantioselectivity is determined during the β‐hydride elimination
Brenda Fundora   +8 more
wiley   +1 more source

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