23592-78-1

Upstream product

• 125424-77-3 9-acetyl-2-benzoylcarbazole 
• 23592-77-0 2,9-dibenzoylcarbazole 
• 19264-68-7 9-benzoyl-9H-carbazole 
• 98-88-4 benzoyl chloride 
• 574-39-0 9-acetylcarbazole 
• 1609211-17-7 C₂₅H₁₈N₂O₂ 
• 615-36-1 2-bromoaniline 
• 1609211-33-7 C₁₉H₁₅NO 
• 98-80-6 phenylboronic acid 
• 56107-02-9 4-chloro-3-nitrobenzophenone 

Downstream Products

• 110746-69-5 1-(7-benzoyl-carbazol-3-yl)-ethanone 
• 125424-77-3 9-acetyl-2-benzoylcarbazole 
• 876501-77-8 2,6-dibenzoyl-carbazole 
• 102024-02-2 (9-methyl-carbazol-2-yl)-phenyl ketone 
• 103265-38-9 2,6,9-tribenzoyl-carbazole 
• 116027-36-2 1-(7,9-dibenzoyl-carbazol-3-yl)-ethanone 
• 116027-37-3 9-acetyl-2,6-dibenzoyl-carbazole 
• 103035-45-6 2,6-dibenzoyl-9-methyl-carbazole 
• 110436-03-8 1-(7-benzoyl-9-methyl-carbazol-3-yl)-ethanone 

Relevant academic research and scientific papers

Direct synthesis of N -H carbazoles via iridium(III)-catalyzed intramolecular C-H amination

The iridium-catalyzed dehydrogenative cyclization of 2-aminobiphenyls proceeds smoothly in the presence of a copper cocatalyst under air as a terminal oxidant through intramolecular direct C-H amination to produce N-H carbazoles. A similar iridium/copper system can also catalyze the unprecedented dimerization reaction of 2-aminobiphenyl involving 2-fold C-H/N-H couplings.

Synthesis of carbazoles by copper-catalyzed intramolecular C-H/N-H coupling

A Cu-catalyzed intramolecular C-H amination for the synthesis of carbazoles has been developed. The key to success is the installation of the picolinamide-based directing group, which is spontaneously removed after the coupling event. The Cu catalysis proceeded smoothly under Pd- and I(III)-free conditions, and its mild oxidation aptitude enables the rapid and concise construction of heteroatom-incorporated carbazole core π-systems.

Triphenylphosphine-mediated reductive cyclization of 2-nitrobiphenyls: A practical and convenient synthesis of carbazoles

The synthesis of a series of substituted carbazoles from the corresponding 2-nitrobiphenyl derivatives using a novel modification of the Cadogan reaction is described. Cyclization of the 2-nitrobiphenyls was achieved via reductive deoxygenation of the nitro groups using a slight excess of triphenylphosphine in a suitable solvent. We have observed a temperature dependence on the extent of conversion under these conditions, with higher boiling solvents affording higher yields across a range of substrates. The new reaction conditions are very straightforward and convenient to execute, tolerate a broad range of functional groups, and yield carbazole products in the absence of unwanted side products.

STUDIES ON ENAMIDES PART-2 : A NOVEL PHOTOCHEMICAL SYNTHESIS OF 9H-INDOLOPHENANTHRIDIN-9-ONE, A BENZCANTHINE ANALOGUE

The synthesis of 3-aroylcarbazoles and the unknown 1-aroylcarbazoles has been achieved by the photolysis of 9-aroylcarbazoles in polar solvent.Irradiation of 3(a-c) in non-polar solvent afforded regiospecifically 5(a-c), carbazole (1) and for the first time, 9H-indolophenanthridin-9-one (8) from 3b.The yield of 8 was significantly improved by UV exposure of 9-(2-iodobenzoyl)-carbazole (3e) in methanol and iodine, without providing any photomigrated product.