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
supporting information, 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.
Ni/Pd-catalyzed Suzuki-Miyaura cross-coupling of alcohols and aldehydes and C-N cross-coupling of nitro and amines: via domino redox reactions: base-free, hydride acceptor-free
Ahmed, Rebin Omer,Kazemnejadi, Milad,Mahmoudi, Boshra
, p. 43962 - 43974 (2020/12/25)
Domino oxidation-Suzuki-Miyaura cross-coupling of benzyl alcohols with phenylboronic acid and domino reduction-C-N cross-coupling of the nitro compounds with aryl halides were carried out using a strong Ni/Pd bimetallic redox catalyst. The catalyst bearing a copolymer with two Ni/Pd coordinated metals in porphyrin (derived from demetalated chlorophyll b) and salen-type ligands, and pyridine moiety as a base functionality all immobilized on magnetite NPs was synthesised and characterized. The domino oxidation cross-coupling reaction was accomplished under molecular O2 in the absence of any hydride acceptor or/and base. Also, the domino reduction C-N cross-coupling reaction was performed in the presence of NaBH4 without the need for any base and co-reductant. This multifunctional catalyst gave moderate to good yields for both coupling reactions with high chemoselectivity. A wide investigation was conducted to determine its mechanism and chemoselectivity.
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.