Disclosed herein a process preparation of 2,6-dichlorobenzonitrile. A process of making high yield, high purity 2,6-dichlorobenzonitrile including the selective de-nitrochlorination of 2-chloro-6-nitrobenzonitrile by treatment of the 2-chloro-6-nitrobenzonitrile with chlorine gas.

Disclosed herein a process preparation of 2,6-dichlorobenzonitrile. A process of making high yield, high purity 2,6-dichlorobenzonitrile including the selective de-nitrochlorination of 2-chloro-6-nitrobenzonitrile by treatment of the 2-chloro-6-nitrobenzonitrile with chlorine gas.

The present disclosure provides for a rhodium-catalyzed oxidative arene alkenylation from arenes and styrenes to prepare stilbene and stilbene derivatives. For example, the present disclosure provides for method of making arenes or substituted arenes, in particular stilbene and stilbene derivatives, from a reaction of an optionally substituted arene and/or optionally substituted styrene. The reaction includes a Rh catalyst or Rh pre-catalyst material and an oxidant, where the Rh catalyst or Rh catalyst formed Rh pre-catalyst material selectively functionalizes CH bond on the arene compound (e.g., benzene or substituted benzene).

The present disclosure provides for a rhodium-catalyzed oxidative arene alkenylation from arenes and styrenes to prepare stilbene and stilbene derivatives. For example, the present disclosure provides for method of making arenes or substituted arenes, in particular stilbene and stilbene derivatives, from a reaction of an optionally substituted arene and/or optionally substituted styrene. The reaction includes a Rh catalyst or Rh pre-catalyst material and an oxidant, where the Rh catalyst or Rh catalyst formed Rh pre-catalyst material selectively functionalizes CH bond on the arene compound (e.g., benzene or substituted benzene).

A light-absorbing material includes a compound represented by the formula (1) below. In the formula (1), L.sup.1 to L.sup.3 are each independently represented by the formula (2) or (3) below:

##STR00001##

Described are methods for preparing a deuterated aldehyde using with a photocatalyst and a hydrogen atom transfer agent in a H.sub.2O free solvent comprising D.sub.2O and an organic solvent under an inert gas. The methods may be used to convert a wide variety of aldehydes (e.g., aryl, alkyl, or alkenyl aldehydes) to C-1 deuterated aldehydes under mild reaction conditions.

The present disclosure provides an organic emitting compound of the following Formula, and an organic light emitting diode, which includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer positioned between the first electrode and the second electrode and including a first host and the organic emitting compound, and an organic light emitting display device including the organic light emitting diode. ##STR00001##

The present disclosure provides an organic emitting compound of the following Formula, and an organic light emitting diode, which includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer positioned between the first electrode and the second electrode and including a first host and the organic emitting compound, and an organic light emitting display device including the organic light emitting diode. ##STR00001##

Provided are m-diamide compounds and a preparation method therefor and the use thereof. The m-diamide compounds have a structure represented by formula I. The m-diamide compounds of the present invention can have a high insecticidal activity at a low dose and take effect rapidly, can exert the insecticidal activity one day after application, can achieve a high insecticidal activity within three days, and have a good fast-acting property; moreover, due to the good effect at a low dose, the m-diamide compounds can reduce the damage to plants and human beings caused by excessive drug concentrations, enable less drug residue to be generated during application which is more conducive to environmental protection, and have broad application prospects.

Provided are m-diamide compounds and a preparation method therefor and the use thereof. The m-diamide compounds have a structure represented by formula I. The m-diamide compounds of the present invention can have a high insecticidal activity at a low dose and take effect rapidly, can exert the insecticidal activity one day after application, can achieve a high insecticidal activity within three days, and have a good fast-acting property; moreover, due to the good effect at a low dose, the m-diamide compounds can reduce the damage to plants and human beings caused by excessive drug concentrations, enable less drug residue to be generated during application which is more conducive to environmental protection, and have broad application prospects.