74447-69-1Relevant articles and documents
Pyrazole-Mediated C-H Functionalization of Arene and Heteroarenes for Aryl-(Hetero)aryl Cross-Coupling Reactions
Kundu, Abhishek,Dey, Dhananjay,Pal, Subhankar,Adhikari, Debashis
, p. 15665 - 15673 (2021/11/16)
Herein we introduce a transition-metal-free protocol that involves a commercially available, inexpensive pyrazole molecule to conduct C-C cross-coupling reactions at room temperature via a radical pathway. Using this method, an aryldiazonium salt has been coupled to a wide range of arenes and heteroarenes including benzene, mesitylene, thiophene, furan, benzoxazole to result the corresponding biaryl products. The full reaction mechanism is elucidated along with the crystallographic probation of an active initiator species. A potassium-stabilized deprotonated pyrazole steers single-electron transfer to the substrate and behaves as an initiator for the reaction.
Gold-Catalyzed Oxidative Biaryl Cross-Coupling of Organometallics
Liu, Kai,Li, Nian,Ning, Yunyun,Zhu, Chengjian,Xie, Jin
, p. 2718 - 2730 (2019/10/09)
-
A process for preparing halogenated biphenyl (by machine translation)
-
Paragraph 0029-0030, (2019/05/08)
A process for preparing halogenated biphenyl compound of the method, it is in order to aryl borate and aryl silane reagent as a raw material, 1, 1, 2 - trichloroethane as solvent, oxygenated esters of acetic acid as the oxidizing agent, paratoluene sulfonic acid silver as silver salts. In 110 °C lower, N - (diphenyl phosphate alkyl) - N - isopropyl - 1, 1 - diphenyl phosphine amine [...] 1 a catalytic cross-coupling, and efficient synthesis of aryl compounds of the halogenating is joint method. (by machine translation)