Results 181 to 190 of about 140,146 (333)

<i>anti</i>-Diastereo- and Enantioselective Ruthenium-Catalyzed C-C Coupling-Oxidative Lactonization of 1,4-Butanediol: Alkynes as Allylmetal Pronucleophiles. [PDF]

J Am Chem Soc
Santana CG, Meares PW, Dubey ZJ, Krische MJ.   +3 more
europepmc   +1 more source

Chemoenzymatic Route toward a De Novo Enantioselective Total Synthesis of (S)‐Baclofen Based on Metal‐Catalyzed Hydroformylation and Enzymatic Transamination

ChemBioChem, EarlyView.
A unique chemoenzymatic synthesis route toward (S)‐baclofen is presented, which highlights a hydroformylation and biocatalysis step toward the synthesis of such a challenging β‐chiral amino acid. The shown methodology exhibits high conversions and enantiomeric excess and is transferable to other β‐chiral amines and amino acids.
Feodor Belov, Hannah Bork, Luise Hänel, Manideep V. Kollipara, Matthias Höhne, Harald Gröger, Jan von Langermann   +6 more
wiley   +1 more source

Ketosynthase Domain Catalyzes β-Lactonization in the Biosynthesis of the HMG-CoA Synthase Inhibitor Hymeglusin. [PDF]

J Am Chem Soc
Hirokawa M, Ozaki T, Tsukada K, Sugawara A, Morishita Y, Asai T.   +5 more
europepmc   +1 more source

Synthesis of a Lactone [PDF]

Journal of Chemical Education, 1998
openaire   +2 more sources

Diastereoselective, Diversifiable Synthesis and Biological Evaluation of the Virginiamycin Inducers, the Virginiae Butanolides

ChemBioChem, EarlyView.
Production of natural products is tightly regulated, resulting in many silent biosynthetic gene clusters. BarA is a repressor that downregulates production of the virginiamycin antibiotics. The VBs are ligands for BarA that reverse its repression of virginiamycin production.
Kylie G. Castator, Manuela Frias‐Gomez, Lauren E. Wilbanks, Elizabeth I. Parkinson   +3 more
wiley   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

, 2022
Hepatology, EarlyView.
Robert J. Fontana, Iris Liou, Adrian Reuben, Ayako Suzuki, M. Isabel Fiel, William Lee, Victor Navarro   +6 more
wiley   +1 more source

Solution and precipitation based radical polymerization of renewable vinyl lactones in renewable solvents. [PDF]

RSC Adv
Apostolidis D, Dyer WE, Dransfeld CA, Kumru B.   +3 more
europepmc   +1 more source

From Biomass to Polymers: Kinetic Analysis and Sustainable Synthesis of Lignin‐Polycaprolactone Copolymers

ChemCatChem, EarlyView.
Lignin‐polycaprolactone (PCL) copolymers were prepared using a highly efficient and nontoxic zinc catalyst. The reaction kinetics were investigated and differ from those usually observed in ring‐opening polymerization. Depending on the chain length of the copolymer, an acceleration of the reaction was found.
Tim Langletz, Medea Edinger, Alexander Hoffmann, Sonja Herres‐Pawlis   +3 more
wiley   +1 more source

On the Bouveault-Locquin's Lactone-Trimethylenering-Rearrangement

, 1950
松井 正直, 平瀬 進
openalex   +2 more sources

A Purification‐Free Strategy for the Electrochemical Oxidation of the Primary Hydroxy Group in Glycopyranosides

ChemElectroChem, EarlyView.
A straightforward protocol for the electrochemical oxidation of the primary hydroxy group in glycopyranosides is presented. It uses aqueous ammonia as a base and electrolyte, reticulated vitreous carbon (RVC) electrodes, and TEMPO as a mediator. The ammonium salts of the corresponding uronic acids are obtained in excellent yield upon evaporation of the
Marios Kidonakis, Ruben L. H. Andringa, Imke M. A. Bartels, Martin D. Witte, Sebastian B. Beil, Adriaan J. Minnaard   +5 more
wiley   +1 more source