122-37-2Relevant articles and documents
The N-H and O-H bond dissociation energies in 4-hydroxydiphenylamine and its phenoxyl and aminyl radicals
Varlamov
, p. 306 - 312 (2004)
The N-H and O-H bond dissociation energies in 4-hydroxydiphenylamine Ph-NH-C6H4-OH (DNH= 353.4, DOH=339.3 kJ mol-1) and its semiquinone radicals DNH(Ph-NH-C 6H4-O.) = 273.6, DOH(Ph-N .-C6H4-OH) = 259.5 kJ mol-1 were first estimated using the parabolic model and experimental data (rate constants) on two elementary reactions with participation of N-phenyl-1,4- benzoquinonemonoimine (2). One of the reactions, namely, that of 2 with aromatic amines, was studied in this work using a specially developed method.
Construction of diaminobenzoquinone imines via ferrocene-initiated radical reaction of benzoquinone with amines
Feng, Yadong,Liu, Ying,Fu, Qi,Zou, Zhongai,Shen, Jinhai,Cui, Xiuling
, p. 733 - 735 (2020)
A ferrocene-initiated radical reaction of benzoquinone with amines has been successfully developed for the direct access to diaminobenzoquinone imines in high yields, in which the commercially available and cheap ferrocene was employed as a radical initiator and TBHP was used as an oxidant. Moreover, this reaction could be achieved with low loading of ferrocene (0.5 mol%). This protocol is highly efficient with good substrate tolerance and provides a new approach for the construction of benzoquinone imines with potential pharmaceutical interest.
Palladium-catalyzed carbonylation of iminoquinones and aryl iodides to access arylp-amino benzoates
Wang, Siqi,Wu, Xiao-Feng,Yao, Lingyun,Ying, Jun
, p. 8246 - 8249 (2021/10/12)
A palladium-catalyzed carbonylation of iminoquinones and aryl iodides has been developed for the construction of arylp-amino benzoates. Using benzene-1,3,5-triyl triformate (TFBen) as the CO source, the reaction proceeded well to give various arylp-amino benzoates in good to excellent yields. Additionally, control experiments were conducted to gain more insights into the reaction mechanism.
Substituted anilino-benzothiazole-2-thioketone compound as well as preparation method and application thereof
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Paragraph 0071-0072, (2020/06/05)
The invention discloses a substituted anilino-benzothiazole-2-thioketone compound and a preparation method thereof. In addition, the invention also relates to an application of the compound in rubberproducts. The substituted anilino-benzothiazole-2-thioketone compound disclosed by the invention not only can promote rubber vulcanization, but also can prolong the service life of the rubber products.
Pd-Catalyzed Redox-Neutral C-N Coupling Reaction of Iminoquinones with Electron-Deficient Alkenes without External Oxidants: Access of Tertiary (E)-Enamines and Application to the Synthesis of Indoles and Quinolin-4-ones
Jillella, Raveendra,Raju, Selvam,Hsiao, Huan-Chang,Hsu, Day-Shin,Chuang, Shih-Ching
, p. 6252 - 6256 (2020/08/12)
A novel and efficient reductive N-alkenylation of iminoquinones with electron-deficient olefins has been successfully developed by Pd(II)-catalyzed redox-neutral reactions, which provides a synthesis of tertiary (E)-enamines. We further demonstrate that the tertiary enamines can be converted to multifarious N-heterocyclic compounds, indoles, and quinolones in good yields.
