4044-95-5Relevant articles and documents
Oxidative C-H/C-H Annulation of Imidazopyridines and Indazoles through Rhodium-Catalyzed Vinylene Transfer
Ghosh, Koushik,Nishii, Yuji,Miura, Masahiro
, p. 3547 - 3550 (2020)
Transition-metal-catalyzed C-H activation followed by oxidative annulation with alkynes has been an efficient synthetic tool for the assembly of various polyaromatic scaffolds. Despite the substantial progress in this field, it is still a significant chal
Metal-free oxidative decarbonylative halogenation of fused imidazoles
Kumar, Gulshan,Shankar, Ravi,Singh, Davinder,Tali, Javeed Ahmad
, p. 20551 - 20555 (2021/11/23)
An efficient strategy has been developed for the deformylative halogenation of carbaldehyde imidazo-fused heterocycles in the presence of TBHP controlled by temperature. A convenient and sequential functionalization (C8 to C3) portrays the synthetic utility of the current method.N-Heterocycle benzamide products were also observedviathe ring opening of imidazopyridines through the cleavage of C-C bond at high temperatures. Features of this method include temperature-controlled excellent regioselectivity, mild conditions and functional group tolerance.
Preparation method of C-3 haloimidazolium [1,2-a] pyridine derivative
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Paragraph 0024-0025, (2022/01/08)
The present invention discloses a method for preparing a C-3 haloimidazolium [1,2-a] pyridine derivative, belonging to the field of organic synthesis. The method took imidazolium [1,2-a] pyridine as the starting material, halide cuprous as the halogen sou