[PDF] Top 20 Aplicación de procesos Fenton para la reducción de cafeína en aguas
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THE SYNTHESIS OF NEW SPIROLACTONES FROM SUBSTITUTED ISATINS
... selective synthesis of butenolide functionalized spirooxindoles in high yield ...total synthesis of therapeutically useful spirooxindoles [6-15], but also for the preparation of synthetic analogs [16-30] in ... See full document
16
Synthesis and antimicrobial activity of some new isatins derivatives
... The different isonitrasoacetinilides (b) were synthesized from the respective aromatic amines (a) viz. on reaction with chloralhydrate and hydroxylamine hydrochloride. Each of isonitrasoacetinilides (b) was ... See full document
164
Synthesis, Characterisation and Antimicrobial study of some New Isatins Derivatives
... The different isonitrasoacetinilides (b) were synthesized from the respective aromatic amines (a) viz. on reaction with chloralhydrate and hydroxylamine hydrochloride. Each of isonitrasoacetinilides (b) was ... See full document
27
Facile and Efficient Method for Synthesis of Benzimidazole Derivatives Catalyzed by Zinc Triflate
... [3]. Substituted Benzimidazoles display a broad spectrum of potential pharmacological activities and are present in a number of pharmacologi- cally active molecules such as albendazole/mebendazole/ thiabendazole ... See full document
128
“C. Limon Catalyzed Heterocyclisation: Microwave Assisted Rapid One Step Synthesis of Substituted 2-aryl benzoxazoles” by Bhagyashri. A. Lole, Pravina B. Piste, India.
... sourced from local suppliers and used without further ...recrystalized from ethanol as a ...the synthesis of compounds is of ONIDA Company and domestic ... See full document
40
Novel synthesis and spectral characterization of some new substituted pyrazolones and isoxazolone
... amino malonyl-3-methyl pyrazolone (3a-3k) A mixture of (1a;0.001 mole) dissolved in ethanol (10 ml) and (2a-2k;0.001 mole) in glacial acetic acid (3-4 drops) was refluxed for 4-5 hours, the resulting solid was obtained ... See full document
5
Synthesis and Characterization of Some New Substituted Azo-Coumarin and Schiff’s Bases
... mixture melted to a liquid and then set to a solid , after cooling it was digested with the solution of NaHCO 3 and then washed with distilled water several times . The Schiff’s bases was removed by extraction with hot ... See full document
8
Synthesis of Some New 1,2,5- Substituted Benzimidazole Derivatives and Their Pharmacological Activity
... The required starting material 2-substituted benzimidazole 2a-2e was synthesized by reacting equimolar quantities of o-phenylene diamine 1 and appropriate organic acids i.e. acetic acid, formic acid, propionic ... See full document
8
Synthesis and Characterization of New Substituted Macrocyclic Complexes and Investigation of their Antimicrobial Activity
... An ethanolic solution of (20ml) of Biguanide (10 mmol) was mixed with an ethanolic solution (15ml) of 2-hydroxy- ω -( benzoyl / 2- chlorobenzoyl / 4-chlorobenzoyl / 2-nitrobenzoyl / 4-nitrobenzoyl) acetophenone (20 ... See full document
43
AN EFFICIENT SYNTHESIS OF 2 AMINOBENZOTHIAZOLE AND ITS DERIVATIVES IN IONIC LIQUIDS
... reaction substituted benzothiazoles were treated with aldehyde (Aromatic and heteroaromatic) to form corresponding Schiff bases 14-15 ...groups. Synthesis of all of these compounds shown in the Scheme ... See full document
21
Atom-Economic Synthesis of 4-Pyrones from Diynones and Water
... 85. Toshiaki, S.; Taichi, O.; Kiyomi, S.; Yosihiro, N.; Mitsuru, H.; Yoshie, H.; Jun, T.; Takehiro, S. Thermal Addition Reaction of Aroylketene with 1-Aryl-1-trimethylsilyloxyethylenes: Aromatic Substituent Effects of ... See full document
36
New Azomethine Compounds on the Basis m Phenylenediamine and Substituted Benzaldehydes Capable of Oxidative Polymerization
... To prepare the azomethines (I, II), 51.0 mmol of m -phenylenediamine was charged into a two-necked flask and 60 ml of ethanol was added and the diamine was dissolved. 47.0 mmol of benzaldehyde ( o -hydroxybenzaldehyde) ... See full document
76
SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL ACTIVITIES OF SOME NEW SUBSTITUTED IMIDAZOLES
... 8. S. Khabnadideh, Z. Rezaei, A. Khalafi-Nezhad, R. Bahrinajafi, R. Mohamadi and Farrokhroz AA: Synthesis of N-Alkylated Derivatives of Imidazole as Antibacterial Agents. Bioorganic & Medicinal Chemistry ... See full document
6
Synthesis, Characterization and Antibacterial Activity of Biologically Important Vanillin Related Hydrazone Derivatives
... synthesized compounds (10-13) were confirmed on the basis of the fact that the aldehydic proton (which was visible at δ 10.55) in the starting compound 6 disap- peared, and a new singlet due to the azomethine ... See full document
105
Synthesis and Characterization of Some New Nucleoside Analogues from Substituted Benzimidazole via 1,3-Dipolar cycloaddition Thanaa M. Al-Mouamin | Ahmed Kh. Kadhim
... Hydrolysis of nucleoside analogues A solution of ( 0.3 g ) of the blocked nucleoside in ( 14 ml ) of ( 0.1 M) methanolic sodium methoxide was refluxed with stirring for 0.5 h., neutralized with acetic acid and evaporated ... See full document
6
SYNTHESIS OF BENZOTHIAZOLE SCHIFF’S BASES AND SCREENING FOR THE ANTI OXIDANT ACTIVITY
... Al-Dujaili, Synthesis, characterization and comparative study the microbial activity of some heterocyclic compounds containing oxazole and benzothiazole moieties, Journal of Saudi Chemical Society, 2015; 19: ... See full document
6
Synthesis of Fe3O4 nano particles from Ironstone from the Republic of Yemen.
... ,4,5,6and 7 ( TEM ) shows the top-view TEM images of the Fe 3 O 4 Nanoparticle plate ( TEM ) 1 The size of the Fe 3 O 4 nanoparticle is clear from the TEM. The surface of Fe 3 O 4 nanoparticle shows several large ... See full document
84
Synthesis of some new 5 substituted of 2 aminothiazoles: A new approach
... All reactions were carried out in an efficient hood. The starting materials were purchased from Merck and Fluka chemical companies. Melting points were determined with a Branstead Electrothermal model 9200 ... See full document
28
Synthesis and Applications of Tetramethyl-Guanidine Based Co-Polymeric Gels
... the synthesis of various formanilide derivatives from substituted anilines and formic acid and also in the synthesis of various thiocarbamates from isothiocyanates of corresponding ... See full document
73
Synthesis of alpha substituted amino acids.
... Hydantoin (X) (60 g.), barium hydroxide (315 g.), and water (I5OO ml.) were heated at reflux temperature for forty hours in a two litre round bottom flask. Barium was preci pitated as barium carbonate at 100° using ... See full document
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