Results 191 to 200 of about 81,435 (262)

Retraction Note: Synthesis, antimicrobial, anti-inflammatory, antioxidant and cytotoxicity of new pyrimidine and pyrimidopyrimidine derivatives. [PDF]

Sci Rep
Keshk RM, Salama ZA, Elsaedany SK, ElRehim EMA, Beltagy DM.   +4 more
europepmc   +1 more source

Metal–Metal Cooperative C─F and S─F Bond Cleavage by Low‐Valent Tetracobalt Clusters and Water‐Assisted Fluoroarene Hydrodefluorination

Angewandte Chemie, EarlyView.
Self‐assembled tetrahedral CoI4 clusters supported by simple bipyridine‐based ligands undergo core rearrangement to cleave S─F and C(sp2)─F bond, forming fluoride‐bridged tetracobalt(II)‐oxo clusters, while exposure of cobalt(I) clusters to molecular oxygen yields cubane‐type cobalt(III) oxo clusters.
Hoan M. Dinh, Pavan K. Vardhanapu, Robert R. Fayzullin, Eugene Khaskin, Julia R. Khusnutdinova   +4 more
wiley   +1 more source

Elemental and Stable Isotope Validation of Stepwise Graphene Oxide Functionalization to GRAPHYMERE^®. [PDF]

Materials (Basel)
Di Rosa D, Ruggiero G, Caso F, Rubino M, Marzaioli F, Sorrentino R, Zarone F, Caso G.   +7 more
europepmc   +1 more source

Gain‐of‐Function Engineering of the NifEN Scaffold Into a Self‐Assembling Nitrogenase

Angewandte Chemie, EarlyView.
From scaffold to enzyme: Systematic engineering of the cofactor maturation scaffold NifEN reconstructs the P→M electron relay along with cofactor coordination and proton gating at the S2B site, converting NifEN into a functional nitrogenase capable of ATP‐dependent N2 reduction both in vitro and in vivo.
Yimo Yang, Chi Chung Lee, Steve Ortiz, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +1 more source

A Metrologically Traceable Candidate Reference Measurement Procedure (cRMP) for Dehydroepiandrosterone Sulfate in Human Serum Based on Isotope Dilution-Liquid Chromatography-Tandem Mass Spectrometry (ID-LC-MS/MS). [PDF]

J Mass Spectrom
Yang L, Gao B, Yang T, Tang L, Kan Y, Sun K, Xiao P.   +6 more
europepmc   +1 more source

Z‐Retentive Enantioselective Rh‐Catalyzed Hydroarylation of E,Z‐Dienes

Angewandte Chemie, EarlyView.
The Rh‐catalyzed hydroarylation of conjugated E,Z‐dienoates is found to proceed with high selectivity for addition to the E‐alkene unit. Mechanistic analysis of this Z‐retentive process points towards preferred binding of the E‐alkene unit to a Rh‐aryl species to give rise to the observed selectivity and that Rh‐enolate protonolysis to be turnover ...
Wesley McNutt, Hima Kozhummal, Abdullah Al‐Mashqbeh, Alex Brown, Rylan J. Lundgren   +4 more
wiley   +1 more source

Determining the Authenticity of Ghanaian Honeys Using Stable Isotope Ratio Analysis (SIRA). [PDF]

Molecules
Kpattah L, Sel Z, Mencin M, Adotey DK, Ogrinc N.   +4 more
europepmc   +1 more source

Induction of Methuosis in Breast Cancer Stem Cells by a Cobalt(III) Complex Evokes Immunotherapeutic Response

Angewandte Chemie, EarlyView.
Cancer stem cells (CSCs) drive metastasis, relapse and resist conventional apoptosis‐inducing chemotherapies. We report a cobalt(III)‐cyclam complex with pyrene and diflunisal moieties that reduces the viability of breast CSCs at low micromolar concentrations.
Jiaxin Fang, Sijie Wen, Xiao Feng, Hao Ren, Kuldip Singh, Haihua Xiao, Lingpu Zhang, Kogularamanan Suntharalingam   +7 more
wiley   +1 more source

Dialkyl Ethers and Sacrificial Zinc: Oxide Synthons for Calcium tert‐Butoxide Formation

Angewandte Chemie, EarlyView.
When treated with dialkyl ethers, [(BDI)Ca‐μ‐H‐Zn(t‐Bu)2(η6‐C7H8)] (BDI = HC{C(Me)NDipp}2 initiates a sequence of twofold ether dealkylation and oxide sequestration as tert‐butoxide in a process predicated on a combination of extreme basicity and a cooperative redox process administered by the dissimilar constituent metals. (Generative AI (ChatGPT) was
Kyle G. Pearce, Agustín Morales, Michael S. Hill, Claire L. McMullin   +3 more
wiley   +1 more source

Mannose supports lung cancer metabolism during glycolytic limitation. [PDF]

EMBO Rep
Haitzmann T, Thompson NB, Shah H, Schindlmaier K, Jelwan J, Eichmann TO, Hammond NG, Clare MG, Cameron RB, Faubert B, Leithner K.   +10 more
europepmc   +1 more source