Ara
Toplam kayıt 90, listelenen: 61-70
Synthesis of some new 1,2,4-triazoles, their Mannich and Schiff bases and evaluation of their antimicrobial activities
(Elsevier, 2009)
4-Phenyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol (3) was obtained in basic media via the formation of 2-isonicotinoyl-N-phenylhydrazinecarbothioamide (2), and converted to some alkylated derivatives (4a,b) and Mannich ...
Synthesis of some new 1,2,4-triazoles starting from isonicotinic acid hydrazide and evaluation of their antimicrobial activities
(Elsevier, 2009)
5-Pyridin-4-yl-1,3,4-oxadiazole-2-thiol (2) was obtained from the reaction of isonicotinic acid hydrazide with carbon disulfide in basic media and converted into 4-amino-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol (5) by the ...
Synthesis of methyl (E)-2′,4″-thiazachalcones and their N-alkyl derivatives, photochemistry with theoretical calculations and antimicrobial activities
(TUBİTAK, 2009)
A series of 9 new (E) -thiazachalcones (1-3), and their N -alkyl substituted derivatives (4-6), and stereoselective dimerization products (7-9) were synthesized, then tested for antimicrobial activity against all test ...
Synthesis of some new 1,3,4-thiadiazol-2-ylmethyl-1,2,4-triazole derivatives and investigation of their antimicrobial activities
(Elsevier, 2009)
4-Amino-2-[(5-arylamino-4,5-dihydro-1,3,4-thiadiazol-2-yl)methyl]-5-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-ones (3a-c) were obtained in acidic media via the formation of 2-[(4-amino-3-aryl-5-oxo-4,5-dihydro-1H-1 ...
Chemical composition and antimicrobial activities of the essential oils of Viburnum opulus, Viburnum lantana and Viburnum orientala
(2008)
The composition of the essential oils obtained from the air-dried Viburnum opulus and Viburnum lantana were analyzed by GC-MS. 40 and 53 Components were identified in the essential oils and the main component of these ...
Metal(II) nicotinamide complexes containing succinato, succinate and succinic acid: Synthesis, crystal structures, magnetic, thermal, antimicrobial and fluorescent properties
(Springer Link, 2010)
Four novel divalent transitional metal succinates (suc) with nicotinamide (nia), {[M(?-suc)(H 2O) 2(nia) 2]·2H 2O} n [M = Mn (1), Ni (2)], [Cu(suc)(nia) 2] (3) and [Ni(H 2O) 4(nia) 2](suc)·(H 2suc) (4), have been synthesized ...
Synthesis and antimicrobial activities of some new biheterocyclic compounds containing 1, 2, 4-triazol-3-one and 1, 3, 4-thiadiazole moieties
(TÜBİTAK, 2010)
2-(4-Amino-3-(4-chlorophenyl)-5-oxo-4, 5-dihydro-1 H-1, 2, 4-triazol-1-yl)-N'-[(2, 6 dihalogenophenyl)-methylene]acetohydrazides (3a, b) was obtained via the formation of 2-(4-amino-3-(4-chlorophenyl)-5-oxo-4, 5-dihydro-1 ...
Synthesis of some new biheterocyclic triazole derivatives and evaluation of their antimicrobial activity
(TÜBİTAK, 2010)
2-{3-(4-Substitutedbenzyl)-4-[2-(1H-indol-3-yl)ethyl]-5-oxo-4, 5-dihydro-1H-1,2,4-triazol-1-yl}-N' -(arylmethylene) acetohydrazides (5a-g), 4-amino-2-{3-(4-substitutedbenzyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1- yl}-N' ...
Volatile constituents and antimicrobial activities from flower and fruit of arbutus unedo L.
(2010)
Essential oils isolated by hydrodistillation from flower and fruit of Arbutus unedo growing in Turkey were analyzed by GC and GC/MS. Forty-nine compounds, representing around 95% of the total oils were identified. ...
Cyclization of some carbothioamide derivatives containing antipyrine and triazole moieties and investigation of their antimicrobial activities
(Elsevier, 2010)
Acetohydrazide derivative containing both antipyrine and triazole nuclei (5) was obtained starting from ethyl hydrazinecarboxylate derivative (2) and 4-aminoantipyrine (1) by three steps. The treatment of compound 5 with ...