Results 171 to 180 of about 29,373 (276)

Bromination of octmethylcyclopentene. The irregular reactivity of a sterically hindered cycloalkene T [PDF]

, 1986
Heigl, Ulrich W., Mayr, Herbert, Schade, Christian, Will, Elfriede   +3 more
core   +1 more source

Synthesis of a π‐Extended Phenazine Diimide Derivative and Characterization of Its Closed‐Shell Reduced States

Chemistry – A European Journal, EarlyView.
In this work, the synthesis and characterization of novel π‐extended phenazine diimides is reported. The derivatives undergo differential reduction to a dihydrophenazine or Meisenheimer form depending on the reaction conditions employed. The outcome of this work highlights the paramount importance of structural design in determining the nature of the ...
Francesco Rigodanza, Beatrice Bartolomei, Ilaria Crea, Paolo Costa, Nicola Demitri, Marcella Bonchio, Maurizio Prato, Jacopo Dosso   +7 more
wiley   +1 more source

Alkyl Bismuth Cations: Synthesis, Characterization, and Application as Z‐Type Ligands

Chemistry – A European Journal, EarlyView.
Rare examples of alkyl bismuth cations [BiR2(SbF6)] are presented, including cyclopropyl ligands and a bismacyclic structure. The bismuth‐centered Lewis acids act as Z‐type ligands toward the electron‐rich platinum atom in [Pt(PCy3)2], generating a set of metal‐only Lewis pairs. The structural and spectroscopic properties of these rare types of bismuth
Johannes Schwarzmann, Joel Nitzsche, Cissie Slopianka, Liva Hartmann, William Augustinov, Alexandre Gagnon, Carsten von Hänisch, Crispin Lichtenberg   +7 more
wiley   +1 more source

Ring-Opening Chlorination and Bromination of Pyrazolopyridines and Isoxazoles. [PDF]

Chemistry
Ohki H, Yamaguchi J.
europepmc   +1 more source

Insights into the Photocatalytic Arene Bromination Enabled by Cs2AgBiBr6 Microparticles

Chemistry – A European Journal, EarlyView.
A sustainable photocatalytic bromination of electron‐rich arenes is enabled by low‐toxicity Cs2AgBiBr6 double‐perovskite microparticles using HBr as an atom‐economical bromine source. Surface‐derived bromine radicals drive highly selective mono‐bromination under mild conditions.
Daniele Conelli, Chiara Lo Porto, Mokurala Krishnaiah, Kimmo Lahtonen, G. Krishnamurthy Grandhi, Nicola Margiotta, Paola Vivo, Gian Paolo Suranna, Roberto Grisorio   +8 more
wiley   +1 more source

Total Syntheses of Sappanin-Based Natural Products Enabled by Pattern Recognition Analysis and Brominative Aromatization. [PDF]

Chem Asian J
Zhao WT, Liang JY, Wu YK.
europepmc   +1 more source

Synthesis and Characterization of Carbazole‐Containing Aza[7]helicenes

Chemistry – A European Journal, EarlyView.
Double ortho fusion led to different aza[7]helicene frameworks showing strong acidochromic behavior, singlet excited energies being more than twice the triplet energy, and high racemization barriers, allowing chiral resolution and ECD measurements. ABSTRACT Azahelicenes have attracted significant interest due to their intrinsic axial chirality and ...
Inka Marten, Melina E. A. Dilanas, Joachim Podlech   +2 more
wiley   +1 more source

Computation-Guided Placement of Nonfullerene Acceptor Core Halogenation for High-Performance Organic Solar Cells. [PDF]

J Am Chem Soc
Chen Y, Lei H, Lee S, Huang P, Tian G, Liu L, Zeng T, Yang C, Duan T, Zhou H, Xiao Z, Marks TJ, Facchetti A.   +12 more
europepmc   +1 more source

Room‐Temperature Helix‐to‐Disc Conversion of Thia[6]helicene S,S‐Dioxides to Coronene via In Situ Phenoxide Anion Generation

Chemistry – A European Journal, EarlyView.
In situ phenoxide formation at the benzene terminus triggers room‐temperature conversion of thia[6]helicene S,S‐dioxides to coronene. The solubility contrast drives product precipitation, enabling isolation by simple filtration. This pericyclic annulation between the helical termini provides direct access to coronene‐type planar architectures ...
Kaito Seino, Takashi Murase
wiley   +1 more source

Mechanistic Insights and Catalytic Efficiency of a 2,2'-Bipyridine-Coordinated Peroxidovanadium Complex as a Haloperoxidase Biomimetic. [PDF]

Chempluschem
Fachini LG, Elisandro EVS, Baptistella GB, Bottini RCR, Briganti M, Nunes GG, de Sá EL.   +6 more
europepmc   +1 more source