Results 41 to 50 of about 262,165 (220)
Hemiindigoids as Prominent Photoswitch Scaffolds
ChemPhotoChem, Volume 9, Issue 3, March 2025.This review explores the synthesis, photophysical properties, and diverse applications of hemiindigoid photoswitches, a class of chromophores derived from indigo. With unique visible‐light responsiveness, high thermal bistability, and rapid, reversible switching, hemiindigoids present promising advances in photopharmacology, molecular solar thermal ...
Aurélie Gernet +4 more
wiley +1 more source
Mono‐ADP‐Ribosylation of Peptides: An Overview of Synthetic and Chemoenzymatic Methodologies
ChemBioChem, Volume 25, Issue 24, December 16, 2024.Adenosine diphosphate (ADP)‐ribosylation is a post‐translational modification that regulates key biological processes. It occurs on a wide range of amino acids, including arginine, cysteine, serine, and glutamic acid. Well‐defined ADP‐ribosylated peptides are valuable tools for investigating the structures, mechanisms of action, and interaction ...
Hugo Minnee +2 more
wiley +1 more source
Recent Applications of Sulfonium Salts in Synthesis and Catalysis
Chemistry – A European Journal, Volume 30, Issue 70, December 13, 2024.This review summarizes the recent developments on the synthetic applications of sulfonium salts with an emphasis on the description of the operating mechanistic pathways. Abstract The use of sulfonium salts in organic synthesis has experienced a dramatic increase during the last years that can arguably be attributed to three main factors; the ...
Sven Timmann, Zeyu Feng, Manuel Alcarazo
wiley +1 more source
Advanced Functional Materials, Volume 34, Issue 47, November 19, 2024.This review illustrates chemical aspects and molecular‐level chemistry behind distinctive functions of the cyclophane‐based functional materials with a particular focus on through‐space conjugated π‐stacked molecules and polymers for application in organic emitters, arylenevinylene polymers developed by ROMP approach, and structurally‐controlled ...
Zahid Hassan
wiley +1 more source
Radical β-addition to acyclic α-(arylsulfinyl) enones: Pummerer-type rearrangement [PDF]
, 1998 The reaction of (S,E)-3-(p-tolylsulfinyl)pent-3-en-2-one with an isopropyl radical, generated from isopropyl iodide and triethylborane, gives the non-stereoselective addition product and an unexpected α-(arylsulfanyl) enone which is formed through a ...
Mase, Nobuyuki +3 more
core +1 more source
Aryl Sulfoxides: A Traceless Directing Group for Catalytic C−H Activation of Arenes
ChemPlusChem, Volume 89, Issue 7, July 2024.This concept paper summarizes the major contributions to the sulfoxide‐directed C−H activation of arenes catalyzed by transition metals. The innovative methodologies developed to activate vicinal and remote sites have spurred a large variety of functionalizations, making available unprecedented molecular structures, including constrained heterocycles ...
Pablo Simón Marqués, Claire Kammerer
wiley +1 more source
Pyrrolylsulfonium salts: stable, accessible and versatile pseudohalides for Stille couplings [PDF]
Pyrrolyl halides can be difficult to synthesise in a regioselective manner and are often unstable, which has hampered their application in cross-coupling.
Hann, Jodie +3 more
core +1 more source
Asymmetric Synthesis with Organoselenium Compounds – The Past Twelve Years
Chemistry – A European Journal, Volume 30, Issue 21, April 11, 2024.Examples of asymmetric reactions modulated by selenium compounds include a chiral selenophosphoramide Lewis base that catalyzes electrophilic and oxidative additions to alkenes, an ylide containing a terpene‐based chiral auxiliary for cyclopropanations and a chiral selenide catalyst for photoredox cyclofunctionalizations.
Jessica T. Stadel, Thomas G. Back
wiley +1 more source
ChemInform Abstract: PUMMERER REARRANGEMENT PROMOTED BY POLYPHOSPHORIC ACID TRIMETHYLSILYL ESTER (PPSE) [PDF]
Chemischer Informationsdienst, 1984 AbstractMit dem aus P40, o und Hexamethyldisiloxan zugänglichen PPSE (II) werden die Sulfoxide (I), (IV) bzw. (VI) zu den Verbindungen (III), (V) bzw. (VII) und (VIII) umgelagert.
Masa-aki Kakimoto, Yoshio Imai
openaire +3 more sources
First highly asymmetric pummerer-type reaction in chiral, non-racemic acyclic sulfoxides induced by o-silylated ketene acetal [PDF]
, 1994 Various types of syn- and anti-β-substituted sulfoxides 6b-e, g reacted with ketene tert-butyldimethylsilyl acetal 2 in the presence of a catalytic amount of zinc iodide in acetonitrile to give high yields of the corresponding α-siloxy sulfides 7b-e, g ...
1000040293302 +8 more
core +1 more source