555-03-3Relevant articles and documents
Photoinduced Iron-Catalyzed ipso-Nitration of Aryl Halides via Single-Electron Transfer
Wu, Cunluo,Bian, Qilong,Ding, Tao,Tang, Mingming,Zhang, Wenkai,Xu, Yuanqing,Liu, Baoying,Xu, Hao,Li, Hai-Bei,Fu, Hua
, p. 9561 - 9568 (2021/08/06)
A photoinduced iron-catalyzed ipso-nitration of aryl halides with KNO2 has been developed, in which aryl iodides, bromides, and some of aryl chlorides are feasible. The mechanism investigations show that the in situ formed iron complex by FeSO4, KNO2, and 1,10-phenanthroline acts as the light-harvesting photocatalyst with a longer lifetime of the excited state, and the reaction undergoes a photoinduced single-electron transfer (SET) process. This work represents an example for the photoinduced iron-catalyzed Ullmann-type couplings.
Direct Stereoselective β-Arylation of Enol Ethers by a Decarboxylative Heck-Type Reaction
Hachem, Mahmoud,Hoarau, Christophe,Schneider, Cédric
, (2020/04/15)
Despite remarkable advances to promote regio- and stereoselective decarboxylative arylation of inactivated olefins with benzoic acid derivatives, methodologies involving hetero-substituted alkenes are still lacking. Herein, PdII-catalyzed decarboxylative Heck coupling of α-alkoxyacrylates with (hetero)aryl carboxylic acids for the stereocontrolled production of (Z)-β-heteroarylated vinyl ethers is reported. This methodology offers a rational and step-economical route to the synthesis of attractive β-arylated α-alkoxy α,β-unsaturated carboxylates family which emerged as a relevant class of building blocks with different applications. Mechanistically, whereas electron rich benzoic acids undergo a PdII-catalyzed decarboxylation, electron-deficient substrates proceed through silver(I)-mediated decarboxylation, explaining thus the formation of stereoisomers (E) and (Z) of β-arylated vinyl ethers in presence of these latter.
Preparation method 3- methoxyl diphenylamine (by machine translation)
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Paragraph 0008, (2020/04/17)
3 -methoxydiphenylamine, is obtained, by adding PEG - 800,methoxybenzonitrobenzene 140 °C to a high-pressure reaction kettle, and heating to 2h, after heating to, and heating the methanol, to react, with methanol to obtain, metoonitrobenzene. 3 - reaction liquid distilled dry solvent; is added to the high-pressure reaction kettle. 3 - and then reacted at room temperature, and stirred for, hours under reduced pressure . reaction solution is evaporated and distilled off under reduced pressure 90 °C, by a reaction solution distilled 10h from, a reaction, solution distilled, from a reaction, solution distilled from, a 3 - reaction solution evaporated; in a reaction solution of, a reaction, liquid distilled from, a reaction solution of a, reaction liquid distilled from a reaction, solution distilled from a reaction solution distilled from a reaction solution of a reaction solution. (by machine translation)
