Results 41 to 50 of about 924 (142)

On the Ability of Bismuth to Couple Weakly Coordinating Anions

Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Motivated by the growing number of catalytic processes based on high‐valent Bi, we investigated in silico the reductive elimination step responsible for the coupling of weakly coordinating anions. Relativistic contributions appeared to be decisive to the electronic description of the intermediates involved in this process.
Lucas Mele, Reena Balhara, Dimitrios A. Pantazis, Josep Cornella   +3 more
wiley   +2 more sources

Crystal structure landscape of conformationally flexible organo-fluorine compounds

CrystEngComm, 2016
The crystal structure landscape of an unsubstituted benzanilide was generated and a number of hypothetical structures were accessed with experimentally obtained crystal structures of mono-, di-, tetra- and penta-fluorobenzanilides.
Pradip Kumar Mondal, Deepak Chopra
openaire   +2 more sources

Organocatalytic asymmetric fluorination of α-chloroaldehydes involving kinetic resolution

Beilstein Journal of Organic Chemistry, 2014
In a previous study it was shown that the enantioselective α-fluorination of racemic α-chloroaldehydes with a chiral organocatalyst yielded the corresponding α-chloro-α-fluoroaldehydes with high enantioselectivity.
Kazutaka Shibatomi, Takuya Okimi, Yoshiyuki Abe, Akira Narayama, Nami Nakamura, Seiji Iwasa   +5 more
doaj   +1 more source

Deoxygenative gem-difluoroolefination of carbonyl compounds with (chlorodifluoromethyl)trimethylsilane and triphenylphosphine

Beilstein Journal of Organic Chemistry, 2014
Background: 1,1-Difluoroalkenes cannot only be used as valuable precursors for organic synthesis, but also act as bioisosteres for enzyme inhibitors. Among various methods for their preparation, the carbonyl olefination with difluoromethylene phosphonium
Fei Wang, Lingchun Li, Chuanfa Ni, Jinbo Hu   +3 more
doaj   +1 more source

A novel family of (1-aminoalkyl)(trifluoromethyl)- and -(difluoromethyl)phosphinic acids – analogues of α-amino acids

Beilstein Journal of Organic Chemistry, 2014
A series of novel (1-aminoalkyl)(trifluoromethyl)- and -(difluoromethyl)phosphinic acids – analogues of proteinogenic and nonproteinogenic α-amino acids were prepared.
Natalia V. Pavlenko, Tatiana I. Oos, Yurii L. Yagupolskii, Igor I. Gerus, Uwe Doeller, Lothar Willms   +5 more
doaj   +1 more source

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

1-((Dimethyl(3-((2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyl)oxy)propyl)silyl)oxy)-3,5,7,9,11,13,15-heptakis((dimethylsilyl)oxy)-octasilsesquioxane

Molbank
The title compound was synthesized using Pt-catalyzed hydrosilylation of octasilane POSS and allyl 1H,1H-perfluorooctyl ether. The purity and structure were determined by NMR (1H, 13C, 19F, 29Si), and MALDI TOF-MS.
Analise C. H. Migliaccio, Andrea R. Kelley, Scott T. Iacono   +2 more
doaj   +1 more source

Cu-catalyzed trifluoromethylation of aryl iodides with trifluoromethylzinc reagent prepared in situ from trifluoromethyl iodide

Beilstein Journal of Organic Chemistry, 2013
The trifluoromethylation of aryl iodides catalyzed by copper(I) salt with trifluoromethylzinc reagent prepared in situ from trifluoromethyl iodide and Zn dust was accomplished.
Yuzo Nakamura, Motohiro Fujiu, Tatsuya Murase, Yoshimitsu Itoh, Hiroki Serizawa, Kohsuke Aikawa, Koichi Mikami   +6 more
doaj   +1 more source

An Intramolecular Frustrated Lewis‐Pair Based on a Bismuth(III) Acid Site

ChemistryEurope, Volume 4, Issue 9, September 2026.
Triflate ligands were the key for the design of a frustrated Lewis pair (FLP) that utilizes a soft bismuth(III) center as the Lewis acidic site. The acceptor properties are based on empty p orbitals generated through the ionic binding of the triflate anions to the Bi center.
Martin Borowski, Morten Lehmann, Beatrice Cula, María Álvarez Sánchez, Siad Wolff, Martin Kaupp, Christian Limberg   +6 more
wiley   +1 more source

Oxidative 3,3,3-trifluoropropylation of arylaldehydes

Beilstein Journal of Organic Chemistry, 2013
A reaction between (E)-trimethyl(3,3,3-trifluoroprop-1-en-1-yl)silane (1) and arylaldehydes 2 was triggered by fluoride anions to afford aryl 3,3,3-trifluoropropyl ketones 3 in moderate to good yield.
Akari Ikeda, Masaaki Omote, Shiho Nomura, Miyuu Tanaka, Atsushi Tarui, Kazuyuki Sato, Akira Ando   +6 more
doaj   +1 more source