نتایج جستجو برای: 4 triazine

تعداد نتایج: 1305627  

2016
Arne Klinkebiel Ole Beyer Barbara Malawko Ulrich Lüning

New triazine-based tricarboxylic acid linkers were prepared as elongated relatives of triazinetribenzoic acid (TATB). Additionally, functional groups (NO2, NH2, OMe, OH) were introduced for potential post-synthetic modification (PSM) of MOFs. Functionalized tris(4-bromoaryl)triazine "cores" (3a,3b) were obtained by unsymmetric trimerization mixing one equivalent of an acid chloride (OMe or NO2 ...

2011
Shaaban K. Mohamed Mahmoud A. A. El-Remaily Ahmed M. Soliman Hossam Abdel-Ghany Seik Weng Ng

2-Guanidinobenzimidazole condenses with benzaldehyde in the presence of hydro-chloric acid to form 2-amino-3,4-dihydro-4-phenyl-1,3,5-triazino[1,2-a]benzimidazole, which was isolated as its hydro-chloride, C(15)H(14)N(5) (+)·Cl(-). The positive charge of the cation is formally placed on the double-bonded N atom of the dihydro-triazine ring. The six-membered dihydro-triazine that is fused with t...

Journal: :Applied and environmental microbiology 2000
J Hawari A Halasz T Sheremata S Beaudet C Groom L Paquet C Rhofir G Ampleman S Thiboutot

The biodegradation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in liquid cultures with municipal anaerobic sludge showed that at least two degradation routes were involved in the disappearance of the cyclic nitramine. In one route, RDX was reduced to give the familiar nitroso derivatives hexahydro-1-nitroso-3,5-dinitro-1,3, 5-triazine (MNX) and hexahydro-1,3-dinitroso-5-nitro-1,3,5-triazin...

Journal: :Acta pharmaceutica 2013
Subramaniyan Arulmurugan Helen P Kavitha

2 The present work deals with the synthesis of some novel heterocyclic compounds such as benzoxazoles , 7, 13 and 19, imidazoles 3, 8, 14 and 20, benzimidazoles 4, 9, 15 and 21, and tetrazoles 10, 16, and 22. The synthesized compounds were characterized by IR, 1H NMR, mass spectrometry and elemental analysis. The compounds were evaluated for cytotoxicity against human cancer cell lines such as ...

Journal: :Journal of agricultural and food chemistry 1998
Papiernik Spalding

The degradation of atrazine [2-chloro-4-(ethylamino)-6-isopropylamino-1,3,5-triazine], deethylatrazine [DEA; 2-amino-4-chloro-6-(isopropylamino)-1,3,5-triazine], and deisopropylatrazine [DIA; 2-amino-4-chloro-6-(ethylamino)-1,3,5-triazine] was assessed under limited oxygen conditions using in situ microcosms. Denitrification was induced in a shallow sand and gravel aquifer to measure the potent...

2011
Kurt Mereiter

The herbicide triflusulfuron-methyl (systematic name: methyl 2-{[4-dimethyl-amino-6-(2,2,2-trifluoro-eth-oxy)-1,3,5-triazin-2-yl]carbamoylsulfamo-yl}-3-methyl-benzoate) and its degradation product triazine amine [systematic name: 2-amino-4-dimethyl-amino-6-(2,2,2-trifluoro-eth-oxy)-1,3,5-triazine] form a triclinic 1:1 co-crystal of the title compound, C(7)H(10)F(3)N(5)O·C(17)H(19)F(3)N(6)O(6)S,...

2012
Nasser R. El-Brollosy Ali A. El-Emam Omar A. Al-Deeb Seik Weng Ng

The 1,2,4-triazine ring of the title compound, C(8)H(13)N(3)O(3), is nearly planar (r.m.s. deviation = 0.019 Å). The imino group is hydrogen-bond donor to the exocyclic O atom at the 5-position of an adjacent mol-ecule, the N-H⋯O hydrogen bond generating a chain parallel to the b axis.

Journal: :Applied and environmental microbiology 2002
Jennifer L Seffernick Nir Shapir Michael Schoeb Gilbert Johnson Michael J Sadowsky Lawrence P Wackett

2-Chloro-4,6-diamino-s-triazine (CAAT) is a metabolite of atrazine biodegradation in soils. Atrazine chlorohydrolase (AtzA) catalyzes the dechlorination of atrazine but is unreactive with CAAT. In this study, melamine deaminase (TriA), which is 98% identical to AtzA, catalyzed deamination of CAAT to produce 2-chloro-4-amino-6-hydroxy-s-triazine (CAOT). CAOT underwent dechlorination via hydroxya...

Journal: :acta medica iranica 0
fatemeh alipour shafa neuroscience research center, tehran, iran. and department of animal physiology, faculty of biological sciences, tehran university of medical sciences, tehran, iran. shahrbanoo oryan department of animal physiology, faculty of biological sciences, tehran university of medical sciences, tehran, iran. mohammad sharifzadeh department of pharmacology and toxicology, school of pharmacy, tehran university of medical sciences, tehran iran. fariba karimzadeh shafa neuroscience research center, tehran, iran. and department of neuroscience,school of advanced medical technology, tehran university of medical sciences, tehran, iran. laya kafami shafa neuroscience research center, tehran, iran. and department of pathobiology, school of medicine, alborz university of medical sciences, alborz, iran. hamid irannejad department of medicinal chemistry, school of pharmacy, mazandaran university of medical sciences, mazandaran, iran.

alzheimer's disease (ad) is the most prevalent neurodegenerative disorder. it is characterized by formation of amyloid plaques and neurofibrillary tangles in the brain, degeneration of the cholinergic neurons and neural cell death. this study was aimed to investigate the effect of a triazine derivative, c16h12cl2n3s, on learning in an alzheimer's rat model. animals were divided into seven group...

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