"Grignard synthesis of triphenylmethanol lab report" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 11 of 50 - About 500 Essays
  • Good Essays

    Pat 1 Synthesis of 4-aryl-6-indolylpyridine-2-carbonitriles and evaluation of their biological activity Synthesis of 6-indolyl-4-aryl-3-cyanopyridine-2-one (1a-e) Employing the MCRs approach and microwave irradiation‚ an equimolar amounts of aromatic aldehyde‚ 3-acetylindole‚ ethyl cyanoacetate were reacted with excess of ammonium acetate in one-pot‚ reaction‚ under the microwave irradiation‚ afforded a novel series of 4-aryl-6-indolyl-nicotinonitrile-2-one derivatives 1a-e. Ethylene glycol was

    Premium Chemical reaction Chemistry Ethanol

    • 1662 Words
    • 7 Pages
    Good Essays
  • Good Essays

    solution with a known concentration of 4.047x10-3 M was obtained. A 250-mL sample of a 10-fold dilution of this ionic iron solution and 5 drops of concentrated HNO3 was made. This solution served as the source of ionic Iron for the remainder of the lab and was labeled “stock ionic Iron solution.” Next‚ a 50-mL aqueous ionic Iron and FerroZine® complex solution was prepared by adding 5.00mL stock ionic Iron‚ 3-mL of acetic acid buffer‚ 2-mL of 5% hydroxylamine hydrochloride‚ allowing five minutes for

    Premium Chemistry Titration Water

    • 458 Words
    • 2 Pages
    Good Essays
  • Better Essays

    The experiment consists of 5 steps—Inoculation‚ fermentation‚ cell lysis‚ inclusion body solubilization‚ and peptide purification. In the first two steps‚ E coli with Snake 6 peptides is cultivated. Ultraviolet–visible spectroscopy (UV-vis) is used to quantify bacteria through detection of their optical density (O.D.). After reaching a certain concentration in the fermentation batch‚ inclusion bodies (IBs) are extracted from these E coli by adding Bugbuster lysis solution and lysozyme. Polyacrylamide

    Premium Bacteria Escherichia coli DNA

    • 1049 Words
    • 5 Pages
    Better Essays
  • Better Essays

    Synthesis of Isopentyl Acetate (Banana Oil) Using A Fischer Esterification Reaction Purpose: The purpose of this experiment is to synthesize Isopentyl Acetate using a Fischer esterification reaction. Fischer esterification is an acid-catalyzed condensation of an alcohol and a carboxylic acid‚ yielding an ester and water. Isopentyl Acetate has the scent of banana oil‚ once synthesized it will be purified by distillation. Then the analysis of the sample using H NMR and IR will determine purity

    Premium Acetic acid Oxygen Ester

    • 1537 Words
    • 7 Pages
    Better Essays
  • Good Essays

    buffer at pH 7.0‚ the CA-2Pb2+ formation resulted in a distinct color change from red to blue‚ accompanied by a remarkable bathochromic shift from 527 nm with a shoulder at 558 nm to 605 nm in the absorption spectrum [28]. Since there have been some reports on the complex formation between Cys and Pb2+ in an aqueous solution [30‚ 31]‚ the sensing selectivity of CA-2Pb2+ toward Cys was investigated by absorption spectroscopy. The color changes and absorption spectral study of CA-2Pb2+ (50 μM) were performed

    Premium Chemistry Light Color

    • 280 Words
    • 2 Pages
    Good Essays
  • Good Essays

    14 may be a possible EEC. Moreover‚ the calculated compensation temperature by inverting the straight line slope‚ T comp = 57.9 ºC‚ is higher than the average experimental value‚ T exp = 32.5 ºC. This great difference between these two values of temperatures might reflect the existence of real EEC rather than experimental error [58]. Another evidence of EEC is the approximate constant ∆G # with a significant change in both ∆H # and ∆S # . Finally‚ EEC was also investigated by using

    Premium Electroencephalography Theory Neurology

    • 2085 Words
    • 9 Pages
    Good Essays
  • Good Essays

    Aspirin Synthesis Lab

    • 774 Words
    • 4 Pages

    infrared spectrum for the pure aspirin from the synthesis was taken by using crushed crystals‚ Figure 1. This spectrum was shown with different absorption bands corresponded with the functional groups of aspirin which was observed at frequencies > 1500 cm-1. These infrared frequencies were shown in Table 2. An infrared spectrum of an authentic aspirin was used to distinguish how authentic the infrared spectrum from the synthesis was shown in Figure 2 In this lab‚ aspirin was synthesized from salicylic

    Premium Chemical reaction Carboxylic acid Acetic acid

    • 774 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Grignard reaction

    • 1137 Words
    • 9 Pages

    Experiment C. Aim: To protect one of two carbonyl groups (C1) in order to allow the other to react twice with a Grignard followed by removal of the protecting group by acid hydrolysis to give final product (C2). Method: Ethyl acetoacetate (30.03g)‚ ethylene glycol (15.01g) and toluene-p-sulphonic acid (0.13g) were added to a 250 cm3 round bottomed flask‚ containing a stirrer bar and toluene (100 cm3)‚ fitted with a condenser and dean-stark head. Solution was heated strongly under reflux using

    Premium Distillation Diethyl ether Magnesium

    • 1137 Words
    • 9 Pages
    Good Essays
  • Good Essays

    Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and can be synthesized by the esterification reaction of salicylic acid and acetic anhydride in the presence of an acid catalyst. An esterification reaction is when an acid is converted into an ester by combining with an alcohol and removing a water molecule. When heating the salicylic acid mixture in the warm water bath‚ the mixture should be removed from the bath within 8 minutes‚ to reduce the chance of the acetylsalicylic

    Premium Chemistry Water Acetic acid

    • 404 Words
    • 2 Pages
    Good Essays
  • Good Essays

    All the reagents and solvents used for synthesizing the title compound were of Analar grade (Merck) and were used as such without further purification. The 2-naphthol derived Mannich base 1-((4-methylpiperazin-1-yl)(phenyl)methyl)naphthalen-2-ol (MPN) was synthesized according to the general procedure described in the literatures [13‚ 14]. The 2-naphthol (4.33 g‚ 0.03 mol) was dissolved in 30ml of ethanol and it was mixed with N-methylpiperizine (3.0 mL‚ 0.03 mol) by continuous stirrer at room

    Premium Water Chemistry Oxygen

    • 304 Words
    • 2 Pages
    Good Essays
Page 1 8 9 10 11 12 13 14 15 50