Results 171 to 180 of about 20,067 (277)
Trifluoromethylation‐Induced Lactonization: A Novel Transformation of Unsaturated Carboxylic Acids
Fluorinated drugs often contain trifluoromethyl groups. The increasing importance of such drugs has resulted in more and more attention toward new or improved trifluoromethylation reactions. This review discusses possible reaction mechanisms and existing methods for one such process, trifluoromethylation‐induced lactonization, a distant relative of the
Attila M. Remete
wiley +1 more source
Diastereodivergent electrophilic trapping of α-boryl lithium derivatives. [PDF]
Pavlíčková T, Orbach N, Marek I.
europepmc +1 more source
S‐Adenosyl‐d‐Methionine as a Non‐Physiological Substrate for a Wide Range of SAM‐Dependent Enzymes
From methylation and cyclisation to radical chemistry, diverse enzyme classes utilise the non‐canonical cofactor d‐SAM. These findings reveal an unexpected tolerance of SAM‐dependent catalysis towards inversion of the methionine Cα stereocentre. The ability of SAM‐dependent enzymes to accept S‐adenosyl‐d‐methionine [d‐SAM, (SS,RCα)‐SAM] instead of the ...
Philipp Germer +17 more
wiley +1 more source
Liquid chromatographic determination of enantiomeric purity of [<sup>11</sup>C]methyl-L-methionine and O-(2-[<sup>18</sup>F]fluoroethyl)-L-tyrosine by pre-column derivatization with o-phthaldialdehyde and N-isobutyryl-L-cysteine. [PDF]
Forgács V +8 more
europepmc +1 more source
Hydrocarbon α,ω‐dienes are mainly produced from steam‐cracking derivatives, but high costs, complexity, and environmental impact limit their use. This review highlights sustainable paths from biomass and plastic upcycling, and surveys catalytic transformations into carbocycles and specialty polymers, emphasizing their role as modular building blocks ...
Rosa Villaccio, Giuseppe Leone
wiley +1 more source
Control over stereogenic centres beyond tetracoordination. [PDF]
Budeev A, Sparr C.
europepmc +1 more source
Late‐Stage Functionalization of Peptides on the Solid Phase
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner +2 more
wiley +1 more source
Imidazol-2-ylidene-Based NCCN Ligands for Chiral-at-Iron Catalysis. [PDF]
Hinterlang L, Ivlev SI, Meggers E.
europepmc +1 more source
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve +4 more
wiley +1 more source

