883230-94-2Relevant articles and documents
Pyrimidine-pyrazole metal ruthenium complex with catalysis property and preparation method of complex
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Paragraph 0028-0030, (2019/07/04)
The invention discloses a pyrimidine-pyrazole metal ruthenium complex with a catalysis property and a preparation method of the complex and relates to synthesis and an application of a transition metal complex. A molecular formula of the pyrimidine-pyrazo
Metal-free site-selective C-N bond-forming reaction of polyhalogenated pyridines and pyrimidines
Wang, Lei,Liu, Ning,Dai, Bin
, p. 82097 - 82111 (2015/10/12)
This paper presents a metal-free method for highly site-selective C-N bond-forming reaction of polyhalogenated pyridines and pyrimidines. The preferred coupling site can be tuned from the fluorine group bearing the N-heterocyclic ring to the chlorine group when changing from the pyridine ring to the pyrimidine ring. A wide array of halogenated pyridines preferentially reacted with amines at the fluorine group of the pyridine ring to generate monosubstituted halogenated pyridines with high selectivities. Different halogen atoms at various positions were produced by the pyridine ring that performed well under mild conditions. Halogenated pyrimidines underwent highly selective coupling at the chloride group with a wide range of amines having broad substrate applicability and moderate to good yields. The selectivity of the polyfluoropyridines in the developed reaction system was also tested, and the result indicated that the reaction occurred site-selectively at the ortho-position of the nitrogen ring. This reaction accommodated a wide range of halogenated groups. Thus, a wide range of chloro-, bromo-, iodo-, and fluoropyridines were generated, which have a wide utility for organic synthesis.
OXAZOLIDINONE DERIVATIVES AS ANTIMICROBIALS
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Page/Page column 84, (2010/10/20)
The present invention relates to certain substituted phenyl oxazolidinones and to processes for the synthesis of the same. This invention also relates to pharmaceutical compositions containing the compounds of the present invention as antimicrobials. The compounds are useful antimicrobial agents, effective against a number of human and veterinary pathogens, including gram-positive aerobic bacteria, for example, multiple-resistant staphylococci, streptococci and enterococci as well as anaerobic organisms, for example, Bacterioides spp. and Clostridia spp. species, and acid fast organisms, for example, Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium spp.