33777-91-2Relevant academic research and scientific papers
Cobalt(II)porphyrin-Mediated Selective Synthesis of 1,5-Diketones via an Interrupted-Borrowing Hydrogen Strategy Using Methanol as a C1 Source
Biswal, Priyabrata,Samser, Shaikh,Nayak, Prakash,Chandrasekhar, Vadapalli,Venkatasubbaiah, Krishnan
, p. 6744 - 6754 (2021/05/29)
A novel cobalt(II)porphyrin-mediated acceptorless dehydrogenation of methanol is reported for the first time. This methodology has been applied for the coupling of a variety of ketones with methanol to produce 1,5-diketones along with H2 and H2O as the environment friendly byproducts. This paradigm was also demonstrated for a one-pot synthesis of substituted pyridines using a sequential addition protocol where the 1,5-diketones were generated in situ. From many experiments including those involving deuterium labeling, it is proposed that protonated cobalt(II)porphyrin methoxide complex acts as an intermediate to generate formaldehyde along with a metal hydride.
Ruthenium-catalyzed cyclization of ketoxime acetates with DMF for synthesis of symmetrical pyridines
Zhao, Mi-Na,Hui, Rong-Rong,Ren, Zhi-Hui,Wang, Yao-Yu,Guan, Zheng-Hui
, p. 3082 - 3085 (2014/06/23)
A novel ruthenium-catalyzed cyclization of ketoxime carboxylates with N,N-dimethylformamide (DMF) for the synthesis of tetrasubstituted symmetrical pyridines has been developed. A methyl carbon on DMF performed as a source of a one carbon synthon. And NaHSO3 plays a role in the reaction.
Simple selective synthesis of 2,4- and 2,6-diarylpyridines through metal-free cyclocondensation of aromatic ketones with ammonium acetate
Liu, Jin,Wang, Chuanxin,Wu, Liansheng,Liang, Fen,Huang, Guosheng
experimental part, p. 4228 - 4234 (2011/02/22)
A simple and selective one-pot synthesis of 2,4- and 2,6-diarylpyridines through the cyclocondensation reaction of aromatic ketones with ammonium acetate has been developed. The procedure is metal-free, convenient, and efficient, and the substrates are re
