109812-50-2Relevant academic research and scientific papers
Preliminary results of the reaction of cyclotrimerization of phenylacetylene [2+2+2] catalyzed by [(Cp?)Co(Indene)] complex
Morales-Verdejo, Cesar,Camarada, María Belén,Morales, Verónica,Ca?ete, álvaro,Martínez, Iván,Manriquez, Juan Manuel,Chávez, Ivonne
, p. 3898 - 3901 (2018)
This work describes the catalytic study of [(Cp?)Co(Ind)] (with Cp?= pentamethylcyclopentadienyl, Ind= Indenyl, (C9H7)) complex in cyclotrimerization of phenylacetylene. From the cylcotrimerization reaction was possible to obtain products such as substituted pyridines 2-methyl-3,5-diphenylpyridine (3), 2-methyl- 4,6-diphenylpyridine (4) and the compound 1,2,4-triphenylbenzene (5) using acetonitrile as solvent. On the other hand, using toluene as solvent under the same working conditions, the product of reaction was 1,3,5-triphenylbenzene (1). Furthermore, by varying the working conditions, the reaction is 90% selective towards the formation of pyridines. In addition, has been appreciated the formation of another product 1,4-diphenilbuta-1,3-diyne (2), which was isolated and characterized by means NMR and GC-Mass spectrometry.
Oxidative Trimerization of Amino Acids: Selective Synthesis of 2,3,5-Trisubstituted Pyridines
Xiang, Jia-Chen,Cheng, Yan,Wang, Zi-Xuan,Ma, Jin-Tian,Wang, Miao,Tang, Bo-Cheng,Wu, Yan-Dong,Wu, An-Xin
supporting information, p. 2997 - 3000 (2017/06/07)
An oxidative trimerization of three amino acids has been realized to furnish 2,3,5-trisubstuitued pyridines in both cross- and homo-trimerization types. This method is capable of converting simple linear biomass material to heterocycles, which features in
A simple and highly efficient iron catalyst for a [2+2+2] cycloaddition to form pyridines
Wang, Chunxiang,Li, Xincheng,Wu, Fan,Wan, Boshun
supporting information; scheme or table, p. 7162 - 7166 (2011/09/16)
Joined by iron: The iron catalyst for the formation of pyridines at room temperature (see scheme), which was generated in situ from an inorganic iron salt and a diphosphine ligand, exhibited high reactivity and regioselectivity. Copyright
A metal-free decarboxylative cyclization from natural α-amino acids to construct pyridine derivatives
Wang, Qiang,Wan, Changfeng,Gu, Yang,Zhang, Jintang,Gao, Lingfeng,Wang, Zhiyong
supporting information; experimental part, p. 578 - 581 (2011/05/06)
A metal-free decarboxylative cyclization from natural α-amino acids was developed and applied in the preparation of pyridine derivatives. By virtue of this method, a series of pyridines containing the moiety of natural α-amino acids can be synthesized efficiently from the corresponding natural α-amino acids. The Royal Society of Chemistry.
