382165-80-2Relevant articles and documents
Ionic liquid 1-(4-nitritobutyl)-3-methylimidazolium chloride as a new reagent for the efficient N-nitrosation of secondary amines under mild conditions
Valizadeh, Hassan,Gholipour, Hamid,Shomali, Ashkan
, p. 467 - 470 (2012)
1-(4-Nitritobutyl)-3-methylimidazolium chloride has been developed as a new reagent for efficient nitrosation of secondary amines at 0 °C to room temperature. A variety of N-nitrosamines were prepared in excellent yields by use of this task-specific ionic liquid under mild and heterogeneous conditions.
Clusius,Vecchi
, p. 933,936 Anm. (1953)
Four-Coordinate Copper Halonitrosyl {CuNO}10 Complexes
Bower, Jamey K.,Sokolov, Alexander Yu.,Zhang, Shiyu
, p. 10225 - 10229 (2019)
While copper nitrosyl complexes are implicated in numerous biological systems, isolable examples remain limited. In this report, we show that [Cl3CuNO]?, with a {CuNO}10 electron configuration, can be generated by nitrite reduction at a copper(I) dichloride anion or by nitric oxide addition to a copper(II) trichloride precursor. The bromide analogue, [Br3CuNO]? was synthesized analogously, and both copper halonitrosyl complexes were characterized by X-ray diffraction and a variety of spectroscopic methods. Experimental data and multireference (CASSCF/NEVPT2) calculations provide strong evidence for a CuII–NO. ground state. Both [Cl3CuNO]? and [Br3CuNO]? release and recapture NO. reversibly, and exhibit nitrosative reactivities toward a wide range of biological nucleophiles, such as amines, alcohols, and thiols.
Cain,Wiselogle
, p. 1163,1165-1168 (1940)
Access to Branched Allylarenes via Rhodium(III)-Catalyzed C-H Allylation of (Hetero)arenes with 2-Methylidenetrimethylene Carbonate
Zhang, Shang-Shi,Zheng, Yi-Chuan,Zhang, Zi-Wu,Chen, Shao-Yong,Xie, Hui,Shu, Bing,Song, Jia-Lin,Liu, Yan-Zhi,Zeng, Yao-Fu,Zhang, Luyong
supporting information, p. 5719 - 5723 (2021/08/16)
A rhodium(III)-catalyzed C-H allylation of (hetero)arenes by using 2-methylidenetrimethylene carbonate as an efficient allylic source has been developed for the first time. Five different directing groups including oxime, N-nitroso, purine, pyridine, and pyrimidine were compatible, delivering various branched allylarenes bearing an allylic hydroxyl group in moderate to excellent yields.
4-amino diphenylamine preparation method
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Paragraph 0024-0065, (2019/04/06)
The invention discloses a 4-amino diphenylamine preparation method which includes the steps: slowly dropping concentrated hydrochloric acid into concentrated sulfuric acid, drying generated HCl gas bythe concentrated sulfuric acid and then leading the HCl gas into n-butyl alcohol for absorbing the gas; adding diphenylamine, sodium nitrite, water and methylbenzene, dissolving the diphenylamine bystirring, and then dropping hydrogen chloride for reaction with n-butyl alcohol solution; performing standing and liquid separation, removing water phase and organic phase vacuum desolvation agents, adding water, stirring the solution and performing suction filtration, washing and drying to obtain 4-nitroso diphenylamine; adding the 4-nitroso diphenylamine into an autoclave, adding solvents and catalysts, replacing air in the autoclave by hydrogen and performing hydrogenation reaction; filtering catalyzed hydrogenation liquid, decompressing the desolvation agents and finally performing rectification to obtain 4-amino diphenylamine. According to the preparation method, under the condition of low and medium pressure, composite skeleton nickel catalysts replace traditional noble metal catalysts for hydrogenation reduction of 4-amino diphenylamine, waste gas, waste water and industrial residues are fewer, environmental protection is benefited, and production cost is reduced.
