Results 91 to 100 of about 12,336 (293)

Synthesis of C₂-symmetric bis-indolyl sulfones

, 2009
A new class of C2-symmetric bis-indole derivatives with 2,2-linkage has been synthesized from bis-propargyl sulfones. The method involves treatment of the sulfones with catalytic amount of triethylamine to form the indole derivatives presumably via the ...
Mitra, Tapobrata, Basak, Amit, Sanket Das, Tapobrata Mitra, Amit Basak, Das, Sanket   +5 more
core   +1 more source

Sulfur‐Directed Construction of Vinyl Cyclopropanes from 1,3‐Dienes

Angewandte Chemie International Edition, EarlyView.
Sulfur takes control. A pending thioether acts as a molecular compass, directing carbene addition to the 1,3‐diene scaffold with exceptional regio‑ and diastereocontrol to forge sulfur‐substituted vinyl cyclopropanes (S‐VCPs) — molecular architectures inaccessible via conventional cyclopropanation strategies.
Anna Keimer, Jonas Rettig, Tim‐Niclas Streit, Bob Barthel, Mélissa Calmels, Moritz Malischewski, Franz‐Lucas Haut   +6 more
wiley   +1 more source

Electrochemical oxidations of thioethers: Modulation of oxidation potential using a hydrogen bonding network

Electrochemistry Communications, 2019
A highly efficient chemo-selective electrochemical oxidation of thioethers to sulfoxides and sulfones was developed. The hydrogen bonding network generated from hexafluoro-2-propanol (HFIP) and acetic acid (AcOH) plays an important role in the modulation
Shiwen Liu, Bocheng Chen, Yi Yang, Yuhao Yang, Qianjin Chen, Xiaojun Zeng, Bo Xu   +6 more
doaj   +1 more source

Manganese(I)-Pincer Catalyzed α‑Alkylation of Sulfones by Alcohols

, 2023
Sulfones are building blocks in organic synthesis and pharmaceutical chemistry. Direct α-alkylation of sulfones using alcohols with water as the sole byproduct is an efficient and promising method for their structural modifications.
Lijun Lu (528235), Jie Luo, David Milstein (1599538), Jie Luo (95251), David Milstein, Lijun Lu   +5 more
core   +1 more source

Geminal Difunctionalization of Ketones via C─S Bond Insertion of Photogenerated Donor–Donor Diazo Compounds

Angewandte Chemie International Edition, EarlyView.
Geminal difunctionalization of readily available building blocks provides rapid access to molecular complexity. This work introduces a strategy for installing two distinct functional groups on a carbonyl carbon by transforming it into a donor–donor diazo compound, enabling both batch and flow applications with broad solvent compatibility.
Vincent George, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source

Conversion of Cyclic Vinyl Sulfones to Transposed Vinyl Phosphonates

, 2016
Functionalized cyclic vinyl sulfones were directly converted to the “polarity reversed” vinyl phosphonates through an efficient one pot procedure.
Philip L. Fuchs (2078608), Mohammad N. Noshi (2136055), Ahmad El-awa (2476927), Eduardo Torres (1305357)   +3 more
core   +3 more sources

Synthesis of New 10-Arylthioanthralins and Oxidation of Thioanthralins to Their Corresponding Sulfones [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1996
Treatment of 10-bromoanthralin (1) with several thiophenols (2) gave the corresponding 10-arylthioanthralins (3) in high yields. Oxidation of thioanthralins (3a-c) and (3k-m) using an excess of m-chloroperbenzoic acid gave the corresponding sulfones (4a ...
Jabbar Khalafy, John Malcolm Pruce
doaj  

Synthesis and Elastase Inhibitory Evaluation of Phosphate Esters and Mixed Phosphate Anhydride of Penam Sulfones

Molecules, 2000
The evaluation of human leucocite elastase inhibition by phosphate esters (1-2) and phosphate mixed anhydride (3) of penicillin sulfones and their precursor sulfides is described.
O. A. Mascaretti, María A. Laborde   +1 more
doaj   +1 more source

Modulation of Properties in [1]Benzothieno[3,2-b][1]benzothiophene Derivatives through Sulfur Oxidation

Molecules
This study explores the impact of sulfur oxidation on the structural, optical, and electronic properties of [1]benzothieno[3,2-b][1]benzothiophene (BTBT) derivatives, specifically focusing on 2,7-dibromo BTBT (2,7-diBr-BTBT) and its oxidized forms, 5,5 ...
Aneta Rzewnicka, Rafał Dolot, Maciej Mikina, Jerzy Krysiak, Remigiusz Żurawiński   +4 more
doaj   +1 more source

Hydrohalogenation Reactions of 1,2-Allenic Sulfones. A Novel Synthesis of 2-Haloallylic Sulfones

, 2016
Hydrohalogenation Reactions of 1,2-Allenic Sulfones.
Shengming Ma (1312428), Qi Wei (198826)
core   +1 more source