Results 321 to 330 of about 124,907 (379)

Unprecedented “off‐pathway” [2+2] Cycloaddition‐Retroelectrocyclization Reaction Between an Unsymmetric Alkyne and Tetracyanoquinodimethane

Angewandte Chemie, EarlyView.
The widely used [2+2] cycloaddition‐retroelectrocyclization reaction between tetracyanoquinodimethane (TCNQ) and an activated alkyne has been shown to occur with “inverted” regiochemistry to give exclusive formation of an unexpected regioisomer. A combined experimental and theoretical study helped unravel the peculiar reaction mechanism underlying the ...
Oscar Fernández‐Vera, Luca Sagresti, Luis M. Mateo, Tomas Torres, Giuseppe Brancato, Giovanni Bottari   +5 more
wiley   +1 more source

Noncovalent Interactions Steer the Formation of Polycyclic Aromatic Hydrocarbons. [PDF]

J Am Chem Soc
Rap DB, Schrauwen JGM, Redlich B, Brünken S.   +3 more
europepmc   +1 more source

Transient Supramolecular Polymers by pH‐Gated Conformational Control of a Self‐Assembling Cyclodextrin

Angewandte Chemie, EarlyView.
A metastable cyclodextrin monomer can form kinetically trapped supramolecular polymer at low pH. Raising the pH triggers gradual depolymerization into the self‐included monomer with a rate that can be preset by tuning the pH value. The pH‐dependence is directly associated with the rigidity of the cyclodextrin bridge, which is modulated by protonation ...
Wenting Hu, Valérian Libérioux, Julien Rossignol, Gaëlle Pembouong, Etienne Derat, Mickaël Ménand, Laurent Bouteiller, Matthieu Sollogoub   +7 more
wiley   +1 more source

Comparative Phytochemistry of Polyacetylenes of the Genus <i>Artemisia</i> (Asteraceae): Compounds with High Biological Activities and Chemotaxonomic Significance. [PDF]

Molecules
Greger H.
europepmc   +1 more source

Sequential Michael addition, cross-coupling and [3 + 2] cycloaddition reactions within the coordination sphere of chiral Ni(ii) Schiff base complexes derived from dehydroamino acids: pathways to the asymmetric synthesis of structurally diverse <i>O</i>-substituted serine and threonine analogs. [PDF]

RSC Adv
Khachatryan EA, Sahakyan LY, Tovmasyan AS, Melikyan GS, Panosyan HA, Mkrtchyan AF, Shibata N, Malkov AV, Saghyan AS.   +8 more
europepmc   +1 more source

On the Purification of Acetylene

Journal of Synthetic Organic Chemistry, Japan, 1950
openaire   +3 more sources

Solar Wind Irradiation of Methane and Methane-Water Ices: A Molecular Dynamics Approach. [PDF]

ACS Earth Space Chem
Ricca A, Haskins JB.
europepmc   +1 more source

Earth-abundant Ni-Zn nanocrystals for efficient alkyne semihydrogenation catalysis. [PDF]

Nat Commun
Clarysse J, Silva JJ, Xing Y, Zhang SBXY, Docherty SR, Yazdani N, Yarema M, Copéret C, Wood V.   +8 more
europepmc   +1 more source

A Cycloparaphenylene Acetylene as Potential Precursor for an Armchair Carbon Nanotube. [PDF]

Chemistry
Sidler E, Röthlisberger R, Mayor M.
europepmc   +1 more source

Vinyl-pyrazole as a biomimetic acetaldehyde surrogate.

Chem Commun (Camb)
Steiner L, Ćorović MZ, Dupé A, Mösch-Zanetti NC.   +3 more
europepmc   +1 more source