Urea/thiourea
SYNTHESIS, SPECTRAL CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF NOVEL UREA/THIOUREA DERIVATIVEST. Narasaiah, C*. NagarajuDOWNLOAD/VIEW
... novel urea/thiourea derivatives 3a-k were synthesized by the reaction of equimolar quantities of 2-(benzo[d]thiazol-2-yl) aniline (1) in dry tetrahydrofuran (THF) and various isocyanates and thioisocyanates ...
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Growth and Characterization of Mgso4.7h2o Single Crystals Added With Urea/Thiourea
... concentrated urea and higher concentrated thiourea additions are found to improve the optical ...that urea/thiourea addition plays an important role in reducing the dielectric constant (ε r ) ...
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Design, Synthesis and Bioevaluation of New Urea/Thiourea Derivatives of 3,5 dichloro 4 hydroxy aniline
... The antifungal strains, Aspergillus niger, Candida albicans and Fusarium oxysporum were used to investigate antifungal potency of the newly synthesized urea and thiourea derivatives 3(a-j) using the agar ...
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SYNTHESIS, PHARMACOLOGICAL EVALUATION AND LIGAND-PROTEIN INTERACTION STUDY OF HYBRID UREA AND THIOUREA DERIVATIVES AS ANTIHYPERGLYCEMIC AGENTS
... these urea/thiourea derivatives were binding to the active site of α-glucosidase enzyme with the hydrophobic interactions, noncovalent and hydrogen bond ...
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Vol 8, No 9 (2019)
... Then the synthesis of compound 5-(ethoxycarbonyl)-6- methyl-4-phenyl-3,4-dihydropyrimidin-2(1H)-ones(Table 1) was selected as a model reaction to determine suitable reaction conditions. The reaction was carried out by ...
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One Step Iodine Promoted Synthesis of Imidazol-2-one and Pyrimidin-2-one
... of urea/thiourea/guanidine with aldehydes/ketone in presence of iodine in ethanol to afford symmetric bis-(2-aryl)-imidazol-2-ones and bis-(2- aryl)-pyrimidin-2-ones/thiones is clean and proceeds even ...
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Synthesis and Characterization Benzimidazole Ring by using O-Phenylinediamine with Different Compounds and using Mannich Reaction to Preparation some of Derivatives
... as Urea, Thiourea and Carboxylic acid by reactant with O-phenylinediamine, then substitution hydrogen atom with present on nitrogen atom by reactant with primary and secondary amines according to Mannich ...
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Synthesis, Identification, Theoretical And Experimental Studies For Carbon Steel Corrosion Inhibition in Sea Water for New Urea and Thiourea Derivatives linkage to 5 Nitro Isatin Moiety
... Aceto) urea]-2-oxo indole (2), 5-Nitro-3 [(imino Aceto) thiourea]-2-oxoindole (3) and 5- Nitro-3 [(imino Aceto) phenylthiourea]-2-oxoindole (4) [9]: In 50 ml round bottom flask, a mixture of (1 g, ...
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GREEN CHEMISTRY APPROACH IN SYNTHESIS OF 3,4 DIHYDROPYRIMIDINONE DERIVATIVES UNDER SOLVENT FREE CONDITIONS
... Melting points were determined on a Gallenkamp melting point apparatus. UV, IR, 1H NMR, and GC-MS spectra were recorded on Shimadzu- 1800UV Spectrophotometer, Shimadzu8400s FT- IR Spectrophotometer, 500MHz Brucker ...
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SIO2 CAA: An Efficient Catalyst for One Pot Synthesis of 4,6 Diarylpyrimidine 2(1H) Ones or Thiones
... RESULTS AND DISCUSSION The catalytic activity of SiO2.CAA for the 4,6-diarylpyrimidin-21H-ones or thiones with Acetophenone 1 mmol, Aldehyde 1 mmol, Urea/ Thiourea 1 mmol under room temp[r] ...
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A facile and efficient ultrasound assisted chlorosulfonic acid catalyzed onepot synthesis of benzopyranopyrimidines under solvent free conditions
... To evaluate the effect of catalyst concentration, condensation of 4-hydroxycoumarin, aromatic aldehydes and urea/ thiourea was cared out in presence of different amounts of catalyst (1, 2.5, 5, 7.5, 10 mol ...
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Extraction and Solubilization Methods Suitable for Proteomic Analysis of Common Bean Seed of Ivory Coast
... Since the aim is to obtain individualized proteins after separation by two-dimension electrophoresis for identification by mass spectrometry, it is necessary to make a good extraction. The cells destruction must be ...
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Volumetric and Ultrasonic Velocity Studies of Urea and Thiourea in Aqueous Solution
... of urea, thiourea molecules results of a positive volume change & (ii) the interactions between water and water decreases with increase in temperature giving rise a very small negative change in ...
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Green approach for synthesizing Pyrimido pyrimidine moieties using TBAB
... An equimolar amounts of barbituric acid 3 (1mmol), an aromatic aldehyde 1a–l (1mmol), urea/thiourea 2a/2b (1mmol), and 3 mL of aqu. TBAB (1:1) were mixed thoroughly in a mortar. The reaction mixture was ...
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Influence of growth regulators and nitrogenous compounds on in vitro bulblet formation and growth in oriental lily
... The bulblets attaining the size of 14 to 16 cm (Fig. 1D) after repeated storage at 2°C and transfer to soil flowered during the second year of the grow- ing period in pots (25 cm in diameter) containing soil: sand: FYM ...
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Synthesis and fungicidal activity of coordination compounds of nickel (II) and copper(II) carboxylates with urea and thiourea
... with urea and thiourea have been synthesized and screened for their fungicidal activities against some rotten wood fungi namely streptomyces xantholiticus, four strains of rhizopus oryxae and lactobacillus ...
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Synthesis of Thiazole and Oxazole Derivatives by Organic Clay as a Novel Method and their Biological Evaluation
... Classical methods of synthesis of 1, 3-thiazole involves reaction of dimethyl acetylene dicarboxylate (DMAD) with esters and amides of dithiocarboxylic acids are well known methods for preparation of five membered S, and ...
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ONE POT SYNTHESIS OF 3, 4 TETRAHYDROPYRIMIDINE 5 CARBOXYLATE USING LANTHANUM (III) CHLORIDE (LACL3 7H2O) AS A CATALYST
... A mixture of ethyl acetoacetate (0.002 mol), urea (0.004 mol) or thiourea (0.004 mol), aldehyde (002 mol), Lanthanum (III) chloride (0.02 mol, in 25%) and 12 M HCl acid (1 drop) in absolute EtOH (10 mL) was ...
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Co reductive fabrication of carbon nanodots with high quantum yield for bioimaging of bacteria
... of urea and thiourea was ...citrate, urea and thiourea resulted in a higher QY than those of citrate and urea or citrate and ...from urea hydrolysis [21] and H 2 S from ...
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Green synthesis of saccharin substituted urea and thiourea derivatives and their antimicrobial evaluation Rashmi Singh and Komal Jakhar*
... In a typical reaction, an equimolar amount of urea and saccharin was thoroughly mixed by adding few drops of water and then subjected to microwave irradiations at 480 W. The progress of reaction was monitored by ...
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