Results 11 to 20 of about 420 (124)

1-Bromomethyl-2-iodobenzene

Acta Crystallographica Section E Structure Reports Online, 2007
The title compound, C7H6BrI, is a synthon for the transfer of the 2-iodo­phenyl residue. Bond lengths and angles are normal, the conformation being characterized by an almost perpendicular arrangement of the Cipso—CH2—Br plane and the plane of the aromatic ring. Instead of halogen–π inter­actions, the crystal structure is dictated by I⋯Br van-der Waals
Richard Betz, Peter Klüfers
openaire   +1 more source

Photoinduced Selective Construction of Densely Functionalized Spirocyclic Ethers With Carbyne Equivalents

Angewandte Chemie International Edition, EarlyView.
A reactivity programmed cascade between carbyne equivalents and allylic benzoates was developed that sequentially orchestrates all three reactivity modes of carbyne equivalents, enabling the rapid installation of three σ‐bonds at a single carbon center and providing efficient, scalable access to structurally diverse spirocyclic ethers. ABSTRACT Carbyne
Jianke Su, Chu Wang, Zhongping Cai, Jiale Wu, Xu Yan Chen, Jie Wu   +5 more
wiley   +1 more source

Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex

Chemistry – A European Journal, EarlyView.
Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner, Márton Hegedűs, Péter P. Kalapos, Attila Kunfi, Gábor London   +4 more
wiley   +1 more source

Tailoring Electronic Properties of Precision Graphene Nanoribbons via Nanopore Engineering

Angewandte Chemie, Volume 138, Issue 14, 27 March 2026.
Novel porous graphene nanoribbons incorporating [18]annulene nanopores, together with a nonporous GNR of identical width, have been synthesized. Spectroscopic and theoretical analyses reveal that nanopore incorporation effectively tunes their electronic properties by enlarging the bandgap, reducing charge‐carrier mobility, and modulating exciton ...
Kun Liu, Guanzhao Wen, Gianluca Serra, Nicolás Arisnabarreta, Hongde Yu, Andrea Lucotti, Yarden Peleg Walg, Hartmut Komber, Zhen‐Lin Qiu, Qing‐Song Deng, Ran He, Wenhui Niu, Thomas Heine, Eike Brunner, Mischa Bonn, Steven De Feyter, Matteo Tommasini, Hai I. Wang, Ji Ma, Xinliang Feng   +19 more
wiley   +2 more sources

Phenyl palladium(II) iodide complexes isolated after Sonogashira coupling of iodobenzenes with terminal alkynes

Acta Crystallographica Section E: Crystallographic Communications
The structures of four palladium complexes serendipitously isolated after palladium-catalyzed Sonogashira coupling of aryl iodides with terminal alkynes are reported, namely [3,5-bis(trifluoromethyl)phenyl]iodidobis(triphenylphosphane)palladium(II), [Pd ...
Eric Bosch
doaj   +1 more source

Heteroaryl‐Substituted Polyfluorobiaryls Synthesis via Palladium‐Catalyzed Double CH Bond Functionalization Using Palladium 1,4‐Migration Associated to Direct Arylation

European Journal of Organic Chemistry, EarlyView.
Fluoro substituents on a benzene ring linked to a 2‐bromoaryl group enables the selective activation of one of its CH bonds via Pd‐1,4‐migration. Then, Pd‐catalyzed direct coupling with heteroarenes produces C2’‐heteroarylated 1,1′‐biaryls. In this reaction, the new C–C bond arises from the functionalization of two CH bonds.
Norman Le Floch, Thierry Roisnel, Henri Doucet   +2 more
wiley   +1 more source

Synthesis of Sulfur Heterocycles by Palladium‐Catalyzed Cyclization

European Journal of Organic Chemistry, EarlyView.
In spite of the well‐known palladium thiophilicity, sulfur‐containing acyclic substrates may efficiently undergo several different kinds of palladium‐catalyzed cyclization processes leading to highly important sulfur heterocycles in one synthetic step. Advances in this challenging and stimulating field of research are presented in this review.
Bartolo Gabriele
wiley   +1 more source

Anomalous Absorption and Photolysis of Iodobenzene [PDF]

Nature, 1949
IODOBENZENE, as a vapour or in solution, is unstable to light, like the alkyl iodides, and lends itself to the same sort of photolytic study. Moreover, we have found that the presence of nitric oxide accelerates the decomposition, as is the case with methyl iodide1.
R. A. DURIE, T. IREDALE, A. H. KINGSBURY
openaire   +1 more source

Heteroatom location‐ and orientation mode‐dependent reverse intersystem crossing rate in multiple resonance emitters

FlexMat, EarlyView.
By constructing two pairs of isomers with different heteroatom anchoring positions, the relationship between heteroatom location and orientation mode and reverse intersystem crossing rate constant (kRISC) in multiple resonance (MR) emitters is systematically investigated.
Tingting Huang, Yincai Xu, Yupei Qu, Xinliang Cai, Jinbei Wei, Yue Wang   +5 more
wiley   +1 more source

2,4,5-Trichloro-1-iodobenzene

Acta Crystallographica Section E Structure Reports Online, 2003
The crystal structure of 2,4,5-tri­chloro­iodo­benzene, C6H2Cl3I, a precursor of polychlorinated bi­phenyls (PCBs), is described. The mol­ecule is disordered in two distinct ways. Despite its lack of inversion point symmetry, it straddles an inversion centre in space group P21/n.
Izabela Kania-Korwel, Hans-Joachim Lehmler, Larry W. Robertson, Sean Parkin   +3 more
openaire   +1 more source