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Bucherer carbazole synthesis. A third method for the synthesis of carbazole is the Graebe–Ullmann reaction. Graebe–Ullmann reaction. In the first step, an N-phenyl-1,2-diaminobenzene (N-phenyl-o-phenylenediamine) is converted into a diazonium salt which instantaneously forms a 1,2,3-triazole. The triazole is unstable and at elevated ...
Borsche–Drechsel cyclization is the central step in Borsche–Drechsel carbazole synthesis, where in the first step phenylhydrazine is condensed with cyclohexanone to form the cyclohexanone phenylhydrazone, and in the final step the resulting tetrahydrocarbazole is oxidized to carbazole itself.
2,1,3-Benzothiadiazole derivatives containing carbazole units have been found to be luminiscent, with high emission intensity and quantum efficiency. [ 10 ] Different π-extended molecular systems based on 2,1,3-benzothiadiazole have been built to study fundamental structure–property relationships. [ 8 ]
In the synthesis of highly substituted indoles performed by Danheiser, the key step was a benzannulation reaction using cyclobutenone and ynamides to produce highly substituted aniline derivatives. In this case, the ortho position can be functionalized with various substituents.
President-elect Donald Trump dismissed any suggestion that he’s being usurped by his high-profile billionaire ally Elon Musk during a speech at AmericaFest.
The Bucherer carbazole synthesis is a chemical reaction used to synthesize carbazoles from naphthols and aryl hydrazines using sodium bisulfite.
A woman in Kentucky surprised her Navy husband with a special military homecoming by gifting him a five-day duck hunting trip in Kansas with his best friends ahead of Christmas.
6-Formylindolo[3,2-b]carbazole (FICZ) is a chemical compound with the molecular formula C 19 H 12 N 2 O. It is a nitrogen heterocycle , having an extremely high affinity (K d = 7 x 10 −11 M) [ 1 ] [ 2 ] for binding to the aryl hydrocarbon receptor (AHR).