22401-74-7

Upstream product

• 1160823-33-5 N-(4-tert-butylphenyl)-2-chlorobenzenamine 
• 4496-49-5 4-tert-butyldiphenylamine 
• 98-53-3 4-tercbutyl-cyclohexanone 
• 100-63-0 phenylhydrazine 
• 507-20-0 tertiary butyl chloride 
• 86-74-8 9H-carbazole 
• 769-92-6 4-tert-Butylaniline 
• 108-94-1 cyclohexanone 
• 22401-71-4 3-(tert-butyl)-2,3,4,9-tetrahydro-1H-carbazole 

Relevant academic research and scientific papers

Analysis of Interconversion between Atropisomers of Chiral Substituted 9,9’-Bicarbazole

Interconversion of atropisomers of chiral 3,3’-di-tert-butyl-9,9’-bicarbazole linked by a single N?N bond was analyzed by DFT calculations and experiments. The calculations revealed that the trans transition state has a lower energy for the interconversion than the cis transition state. The lowest transition state of interconversion between natural dixiamycins A and B containing a 9,9’-bicarbazole structure was found to be the trans transition state. The calculations also indicated that degradation through N?N bond cleavage was faster than racemization. Atropisomeric enantiomers of 3,3’-di-tert-butyl-9,9’-bicarbazole were resolved by chiral HPLC for the first time, and then racemization and N?N bond cleavage were investigated by heating experiments, showing that racemization did not take place below the degradation temperature.

ORGANIC COMPOUND, AND RADICAL POLYMERIZATION INITIATOR AND CURABLE COMPOSITION CONTAINING THE SAME

The present invention has high sensitivity. The present invention relates to a novel organic compound which has excellent storage stability and can be used as a radical polymerization initiator having high solubility in an organic solvent, and a radical p

Synthesis and properties of bipolar derivatives of 1,3,5-triazine and carbazole

Three new bipolar star-shaped derivatives of 2,4,6-triphenyl-1,3,5-triazine containing carbazolyl groups were designed, synthesized and characterized. All the materials possess high thermal stability and high glass transition temperatures ranging 97-226 °C. Photophysical study of the dilute solutions and neat films of the synthesized compounds was performed. Lippert-Mataga plots revealed linear dependence of Stokes shifts on the orientation polarizability for all the compounds. The dilute solutions of the triazine derivatives exhibited high photoluminescence quantum yields reaching 0.85, while for the neat films photoluminescence efficiency of 0.20-0.33 was observed. Ionization potentials of the solid layers of carbazole-triazine adducts estimated by photoelectron spectroscopy were found to be in the range of 5.49-5.97 eV. Hole drift mobility of the materials well exceeded the magnitude of 10-3 cm2 V-1 s-1 at an electric field of 6.4 · 105 V/cm. The selected compounds were tested as light emitting materials in organic light emitting diodes based on host-guest systems.

Carbazole derivative, and preparation method and organic electroluminescent device thereof

The invention provides a carbazole derivative, and a preparation method and an organic electroluminescent device thereof. The carbazole derivative is characterized in that a substituent group is improved based on an asymmetric carbazole derivative in orde

Dehydroaromatization with V2O5

Vanadium pentoxide is evaluated as a dehydroaromatization reagent. Tetrahydrocarbazole is readily aromatized by V2O5 in refluxing acetic acid under both stoichiometric and catalytic conditions. Indoline, tetrahydroquinoline, and tetrahydroquinoxaline are effectively aromatized by V2O5/silica in refluxing toluene. Georg Thieme Verlag Stuttgart New York.

Palladium-catalyzed direct synthesis of carbazoles via one-pot N-arylation and oxidative biaryl coupling: Synthesis and mechanistic study

(Chemical Equation Presented) An efficient catalytic system has been developed for the synthesis of carbazoles by one-pot N-arylation and oxidative biaryl coupling. A significant substituent effect of the diarylamine intermediate on oxidative coupling was observed. Mechanistic studies of oxidative coupling, including trapping of reaction intermediates and kinetic isotope effect experiments, are also presented.

Synthesis of carbazoles by intramolecular arylation of diarylamide anions

(Chemical Equation Presented) The synthesis of a series of substituted 9H-carbazoles by the photostimulated SRN1 substitution reaction with diarylamines as starting substrate was performed. The diarylamines were obtained by two approaches, the Pd-catalyzed reactions (Buchwald-Hartwig) or Cu-catalyzed reactions of 2-haloanilines with aryl halides, or 2-bromoiodobenzene with anilines, with moderate to very good isolated yields (45-89%). Through an intramolecular C-C bond formation of diarylamines by the SRN1 mechanism, carbazoles were achieved. These reactions proceeded synthetically in very good to excellent yields (81-99%) in liquid ammonia and DMSO. The reaction of N-(2-bromophenyl)-2-phenylbenzenamine gave 1-phenyl-9H-carbazole (38%) and the isomer 9H-tribenz[b,d,f]azepine (58%). By using this methodology, 9Hcarbazoles, substituted 9H-carbazoles, benzocarbazoles, and even 3,3′-bi(9H-carbazole) were obtained by a double SRN1 reaction with benzidine.

RIGID AMINES

A monomer for use in manufacturing a conjugated polymer, the monomer having a structure as shown formula (2): Ar1, Ar2 and Ar3 are independently selected from optionally substituted aryl or heteroaryl, X1 and X3 both independently comprise a leaving group capable of participating in polymerisation and Z represents a direct bond or an optionally substituted bridging atom.