Results 191 to 200 of about 28,445 (269)

Semi‐Reduction of Allenes to Access Deuterated Allylic Isotopomers, Isotopologs and Enantioisotopomers

Angewandte Chemie, EarlyView.
Modular and Precise Deuteration: The synthesis of molecules precisely deuterated at allylic, vinylic or both positions remains a challenging task. This work discloses a modular semi‐reductive deuteration that enables the synthesis of various isotopologs including precisely labeled d1‐, d2‐, d3‐, d5‐, and d7‐products.
Lihan Qi, Raviraj Ananda Thorat, Brad D. Maxwell, Jeffery A. Gladding, Aniel J. Rivera Arzola, Shashank P. Sancheti, Reilly E. Sonstrom, Xulin Tang, Isaac J. Anderson, Brooks H. Pate, Joseph R. Clark   +10 more
wiley   +1 more source

Peptide ligand isomerism drives divergent stability and guest binding in Pd₃L₄ metal-peptidic cages. [PDF]

Chem Sci
Barber BE, Jamieson EMG, White LEM, McTernan CT.   +3 more
europepmc   +1 more source

Stereospecific Assembly of Triply Chiral Pseudopeptidic Cages Through Dynamic Dual Chirality Transfer

Angewandte Chemie, EarlyView.
The spontaneous assembly of triply chiral (L, Δ, P or D, Λ, M) cages has been achieved from a simple tripodal chiral effector based on phenylalanine tris(amidoamine), non‐chiral bipyridine dialdehyde, and a metal ion. Orthogonal imine bond and iron (II) coordination generate a single combination of chiral elements, while configurationally stable ...
Tushar D. Bhosale, Eudald Usan, Delia Miguel, Jordi Solà, Angel Orte, Ciril Jimeno, Ignacio Alfonso   +6 more
wiley   +1 more source

Plasticity of ventricle position after heart looping in heterotaxy with right isomerism. [PDF]

Sci Adv
Desgrange A, Perthame E, Marchiol C, Madec D, Guillemot L, Chabry MA, El Beheiry M, Masson JB, Raisky O, Bernheim S, Houyel L, Meilhac SM.   +11 more
europepmc   +1 more source

Mechanism of the Photodecomposition of Stable Triarylmethyl Radicals

Angewandte Chemie, EarlyView.
Photolysis of luminescent chlorinated trityl radicals was studied with density functional theory and the decomposition products were isolated and characterized. It proceeds by a 5‐electron electrocyclization then a 1,8‐sigmatropic chloride shift, forming non‐emissive, less stable fluorenyl radicals.
Hannah E. Hackney, Claude Y. Legault, Hatem M. Titi, Dmytro F. Perepichka   +3 more
wiley   +1 more source

Kawashima procedure in single ventricle palliation: the factors affecting clinical outcomes. [PDF]

J Cardiothorac Surg
Sicim H, Sabati AA, Velez DA, Alaeddine M.   +3 more
europepmc   +1 more source

PCA‐Based Database Mining Enables the Discovery of Bacterial Carbene Transferases for Stereodivergent Cyclopropanation

Angewandte Chemie, EarlyView.
Database mining using principal component analysis (PCA)‐based clustering enabled discovery of bacterial enzymes capable of catalyzing stereodivergent cyclopropanation of styrene. Statistical analyses of sequence data further revealed characteristic structural properties of these enzymes, highlighting the potential of the bioinformatics tools for ...
Shunsuke Kato, Koki Takeuchi, Kohei Umeda, Hisashi Kudo, Tomohisa Hasunuma, Takashi Hayashi   +5 more
wiley   +1 more source

Carboxylate positional isomerism in metallacycles governs hierarchical assembly pathways. [PDF]

Chem Sci
Liu L, Yu M, Tuo W, Zhao Y, Zhang F, Sun Y.   +5 more
europepmc   +1 more source

Fluorinated Glycan Frameshifts: Automated Synthesis Expedites the Study of Glycan‐Protein Interactions by 19F‐BioNMR

Angewandte Chemie, EarlyView.
Given the prominence of 19F‐bioNMR in structural research, fluorinated glycans hold enormous potential in glycomimetic frameshift design. However, challenges associated with the stereocontrolled synthesis of these disruptive actors continue to frustrate advances. To address this, the automated synthesis of selectively C‐2 fluorinated glycans related to
James Suri, Christina Jordan, Charlotte S. Teschers, Kristina Schlangen, Simon H. Rüdisser, Alvar D. Gossert, Ryan Gilmour   +6 more
wiley   +1 more source

A theoretical investigation on the isomerism and the NMR properties of thiosemicarbazones

Open Chemistry, 2007
Nuwan De Silva N., Albu Titus
doaj   +1 more source