104315-49-3Relevant academic research and scientific papers
DDQ-Catalyzed Direct C(sp3)-H Amination of Alkylheteroarenes: Synthesis of Biheteroarenes under Aerobic and Metal-Free Conditions
Song, Chunlan,Dong, Xin,Yi, Hong,Chiang, Chien-Wei,Lei, Aiwen
, p. 2195 - 2199 (2018/03/13)
A strategy for oxidative Csp3-H/N-H cross-coupling is presented. This reaction successfully utilizes 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) and tert-butyl nitrite (TBN) as co-catalysts to construct the biomedical applicable biheteroarene
Surfactant-type Bronsted acid catalyzed dehydrative nucleophilic substitutions of alcohols in water
Shirakawa, Seiji,Kobayashi, Shu
, p. 311 - 314 (2007/10/03)
(Chemical Equation Presented) A protocol for the dehydrative nucleophilic substitution of benzyl alcohols with a variety of carbon- and heteroatom-centered nucleophiles using dodecylbenzenesulfonic acid (DBSA) as a surfactant-type Bronsted acid catalyst i
Radical Mediated Synthesis of 6-Arylphenanthridines via Benzotriazole Ring-opening
Katritzky, Alan R.,Yang, Baozhen
, p. 607 - 610 (2007/10/03)
Lithiation of diarylbenzotriazol-1-ylmethanes followed by addition of copper(I) iodide gave 6-arylphennathridine derivatives in moderate yields.When the two aryl groups were the same or contained very different electron densities, only one product was obt
Nitrosation of derivatives of hydrazines, IX: Novel oxidative C-N-coupling of indazoles and benzotriazoles with cyclohepatriene, di- and triphenylmethane derivatives
Hanefeld,Hunz
, p. 323 - 329 (2007/10/02)
In the presence of 2,3-dichloro-5,6-dicyano-benzoquinone (DDQ) indazoles and benzotriazoles react with compounds forming stabilized carbenium ions like cycloheptatriene, di- and triphenylmethane, fluorene, xanthene and thioxanthene, yielding C-N-coupled products.
Studies on the Thermal Isomerization of N-Arylmethylbenzotriazoles
Katritzky, Alan R.,Perumal, Subbu,Fan, Wei-Qiang
, p. 2059 - 2062 (2007/10/02)
The thermal isomerizations of N-benzyl-, N-diarylmethyl- and N-trityl-benzotriazole, and of N--, and N-trityl-5,6-dimethylbenzotriazole under nitrogen have been investigated.In all these cases , the N-1 isomer predominates over the N-2 isomer at thermodynamic equilibrium, to an extent which depends on the steric bulk of the N-substituent.The rate of attainment of equilibrium depends on the electronic effects of the substituents, both in the benzotriazole ring and in the migrating group.These results, in conjunction with a cross-over experiment, support a mechanism involving a heterolytic N-C bond cleavage followed by an intermolecular rearrangement.
SYNTHESIS BY PHASE TRANSFER CATALYSIS OF N-BENZYL, N-DIPHENYLMETHYL AND N-TRIPHENYLMETHYL AZOLES AND BENZAZOLES: PROTON NMR AND CHROMATOGRAPHIC DATA AS A TOOL FOR IDENTIFICATION
Claramunt, Rosa M.,Elguero, Jose,Garceran, Rafael
, p. 2895 - 2906 (2007/10/02)
Pyrazole, imidazole, 1,2,4-triazole, indazole and benzotriazole were alkylated under phase transfer catalysis (PTC) with benzyl-, diphenylmethyl- and trityl chloride.Alkylation occured only at the ring nitrogen atoms of the heterocycle, except for indazole in which substitution took also place at position 3.A systematic study of the N- and C-substituted derivatives by proton NMR and chromatographic techniques has been done.
