608-30-0Relevant articles and documents
Preparation method of 2,6-dibromoaniline
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Paragraph 0018; 0025-0026; 0033, (2020/08/27)
The invention discloses a preparation method of 2,6-dibromoaniline. According to the method, 2,6-difluorobenzonitrile is used as an initial raw material, and the 2,6-dibromoaniline is synthesized through six steps of reactions including ammonolysis, diazotization bromination, re-ammonolysis, re-diazotization bromination, amidation and Hofmann degradation. The 2,6-dibromoaniline obtained in the process is a brown solid, and the purity of the 2,6-dibromoaniline is 98% or above.
The triple-bond metathesis of aryldiazonium salts: A prospect for dinitrogen cleavage
Lackner, Aaron D.,Fürstner, Alois
supporting information, p. 12814 - 12818 (2015/10/28)
The {N2} unit of aryldiazonium salts undergoes unusually facile triple-bond metathesis on treatment with molybdenum or tungsten alkylidyne ate complexes endowed with triphenylsilanolate ligands. The reaction transforms the alkylidyne unit into a nitrile and the aryldiazonium entity into an imido ligand on the metal center, as unambiguously confirmed by X-ray structure analysis of two representative examples. A tungsten nitride ate complex is shown to react analogously. Since the bonding situation of an aryldiazonium salt is similar to that of metal complexes with end-on-bound dinitrogen, in which {N2}→M σ donation is dominant and electron back donation minimal, the metathesis described herein is thought to be a conceptually novel strategy toward dinitrogen cleavage devoid of any redox steps and, therefore, orthogonal to the established methods. Who knows? Although the extrusion of molecular nitrogen from aryldiazonium salts is extremely facile, the metathetic cleavage of the N-N triple bond on treatment with alkylidyne ate complexes of molybdenum or tungsten is shown to be even faster. The analogy between [Ar-N2]+ and known [M-N2] complexes makes this process a potential model for dinitrogen cleavage devoid of any redox steps.
Synthesis of pyrrolnitrin and related halogenated phenylpyrroles
Morrison, Matthew D.,Hanthorn, Jason J.,Pratt, Derek A.
supporting information; experimental part, p. 1051 - 1054 (2009/07/18)
A general approach to halogenated arylpyrroles, including the antifungal natural product pyrrolnitrin, is described using newly synthesized halogenated pyrroles and 2,6-disubstituted nitrobenzenes or 2,6-disubstituted anilines.