Results 201 to 210 of about 18,930 (288)

Iridium nitrenoid-catalyzed atroposelective C2 arylation of indoles. [PDF]

Chem Sci
Mi F, Zheng W, Cao Y, Qi LW, Lu Y.
europepmc   +1 more source

Chemoenzymatic Synthesis of 6‐Sulfo Sialyl Lewisx Containing Glycans to Probe the Receptor Specificity of MERS Coronavirus

Angewandte Chemie, EarlyView.
A chemoenzymatic methodology is described that provided a panel of 6‐sulfo sialyl Lewisx‐containing glycans that were probed for receptor specificity of MERS‐CoV. Although the fucoside of 6‐sulfo‐SLex does not directly interact with the spike, it pre‐organizes the molecule into a conformation to allow a salt bridge between the sulfate and the ...
Yunfei Wu, Anne L.M. Kimpel, Jacobus P. van Trijp, Elif Uslu, Gaёl M. Vos, Luca Unione, Robert P. de Vries, Geert‐Jan Boons   +7 more
wiley   +1 more source

Chiroptical Switching by Stereoselective Photochemical Sigmatropic Rearrangements: Experimental Realization of Calderoselectivity

Angewandte Chemie, EarlyView.
Calderoselectivity is established as a stereochemical principle for sigmatropic rearrangements. A homoannulene‐based chiroptical photoswitch undergoes a photochemical [1,11] sigmatropic rearrangement with control of the acyl movement on top of the cyclic π system.
Anne Krenkel, Frederike Beyer, Malte Feßner, Trung Tran Ngoc, Tobias Rüffer, Dominik Hornig, Martin Breugst, Christian Merten, Johannes F. Teichert   +8 more
wiley   +1 more source

Synthetic Strategies of Fused Triazole Frameworks: A Comprehensive Review. [PDF]

ACS Omega
Tamminana R, Mohammed A.
europepmc   +1 more source

Engineering Rapid Payload Release Rate in 1,6‐Elimination Processes of Self‐Immolative Linkers

Angewandte Chemie, EarlyView.
The payload release rate of self‐immolative linkers was greatly improved through stabilization of an intermediate carbocation, thereby achieving an up to 10 000‐fold improvement in rate constant. Furthermore, lipophilicity was identified as another factor that affects the release rate. This new strategy is applicable to different payloads and different
Albert Marten Schulte, Gülbahar Bozan, Francesca Amoroso, Bart Cornelissen, Wiktor Szymanski   +4 more
wiley   +1 more source

Photo-Triggered, Fast, and Fluorogenic Thiophene-Based Cycloalkynes for the Bioorthogonal Fluorescent Labeling of 1,3-Dipole-Tagged Molecules in No-Wash Conditions. [PDF]

Angew Chem Int Ed Engl
Schulz J, Chinoy ZS, Khalaf T, Li Y, Ma P, Svatunek D, Houk KN, Friscourt F.   +7 more
europepmc   +1 more source

Eisenkatalysierte C(sp3)–C(sp3)‐Bindungsaminierung – Die Nitrogenierende Ringerweiterung von Cyclobutanen

Angewandte Chemie, EarlyView.
Der niedervalente Fe‐Komplex Bu4N[Fe(CO)3(NO)] (TBA[Fe]) katalysiert die C(sp3)–C(sp3)‐Bindungsaminierung hoch substituierter Cyclobutylazide zu den entsprechenden 2H‐Pyrrolinen in guten bis ausgezeichneten Ausbeuten. Bemerkenswerterweise insertiert die Fe‐Nitrenspezies mit hoher Selektivität in die elektronenreichere, stärker substituierte C–C‐Bindung.
Annika Röske, Sebastian Angstmann, Niklas Langendorf, Yuzhou Wang, Maria Degli Innocenti, Bernd Plietker   +5 more
wiley   +1 more source

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides. [PDF]

Angew Chem Int Ed Engl
Yu JK, Ludwig JN, Antoni PW, Tymann D, Hansmann MM.   +4 more
europepmc   +1 more source

Mechanochemical Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC). [PDF]

J Org Chem
Kasprzak A.
europepmc   +1 more source