The Influence of Copper on Halogenation/Dehalogenation Reactions of Aromatic Compounds and Its Role in the Destruction of Polyhalogenated Aromatic Contaminants

The effect of copper and its compounds on halogenation and dehalogenation of aromatic compounds will be discussed in the proposed article. Cu oxidized to appropriate halides is an effective halogenation catalyst not only for the synthesis of halogenated benzenes or their derivatives as desired organic fine chemicals, but is also an effective catalyst for the undesirable formation of thermodynamically stable and very toxic polychlorinated and polybrominated aromatic compounds such as polychlorinated biphenyls, dibenzo-p-dioxins and dibenzofurans accompanied incineration of waste contaminated with halogenated compounds or even inorganic halides. With appropriate change in reaction conditions, copper and its alloys or oxides are also able to effectively catalyze dehalogenation reactions, as will be presented in this review.

Organocatalyzed Photoelectrochemical C−H Amination of Arenes

Catalytic C–H/N–H cross-coupling is considered an ideal strategy for accessing anilines and derivatives, but its synthetic execution remains extremely challenging, especially when the exclusion of external oxidants is desired. Report herein is a photoelectrochemical method for the preparation of anilides through C–H/N–H coupling of arenes and carbamates, which employs DDQ as a molecular catalyst. The reactions are conducted in a simple undivided cell with visible-light irradiation and without any need for external chemical oxidants. In addition, the reactions employ arenes as the limiting agent, and are compatible with benzene and halogenated benzenes

Organocatalyzed Photoelectrochemical C−H Amination of Arenes

Catalytic C–H/N–H cross-coupling is considered an ideal strategy for accessing anilines and derivatives, but its synthetic execution remains extremely challenging, especially when the exclusion of external oxidants is desired. Report herein is a photoelectrochemical method for the preparation of anilides through C–H/N–H coupling of arenes and carbamates, which employs DDQ as a molecular catalyst. The reactions are conducted in a simple undivided cell with visible-light irradiation and without any need for external chemical oxidants. In addition, the reactions employ arenes as the limiting agent, and are compatible with benzene and halogenated benzenes

Separation of halogenated benzenes enabled by investigation of halogen–π interactions with carbon materials

We report the existence of bimodal interactions, the π–π and halogen–π interactions, between the halogenated benzenes and aromatic materials.

Unlocking the electronic genome of halogenobenzenes

We present a DFT investigation that establishes the structure–property relations governing the electronic trends of homo-halogenated benzenes.

Relativistic effects on the aromaticity of the halogenated benzenes: C6X6, X = H, F, Cl, Br, I, At

We study the relativistic effects on the aromaticity of the six hexahalogenated compounds C6X6, via a magnetically induced current density method.

Mass-analyzed-threshold-ionization (MATI) spectroscopy of 1,2,3-substituted halogenated benzenes via different intermediate vibrational states in the S1 state

Non-planar geometrical distortion upon excitation (S1 ← S0) and replanarisation upon ionization (D0 ← S1) of some hetero-substituted halogenated benzenes.