Self Test Question - University of Illinois at Chicago
... There are a number of structural features which effect the pKa of an acid: a) Electronegativity; b) The strength of the bond to the acidic hydrogen atom; c) Inductive effects; d) Resonance delocalization in conjugate base. Remember that the ionization of an acids (HA) to a proton (H+) and conjugate ...
... There are a number of structural features which effect the pKa of an acid: a) Electronegativity; b) The strength of the bond to the acidic hydrogen atom; c) Inductive effects; d) Resonance delocalization in conjugate base. Remember that the ionization of an acids (HA) to a proton (H+) and conjugate ...
The SN2 Reaction: 1
... by an SN2 reaction. In general, a primary alkyl bromide can be prepared by heating the corresponding alcohol with (1) constantboiling hydrobromic acid (47% HBr), (2) an aqueous solution of sodium bromide and excess sulfuric acid, which is an equilibrium mixture containing hydrobromic acid, or (3) a ...
... by an SN2 reaction. In general, a primary alkyl bromide can be prepared by heating the corresponding alcohol with (1) constantboiling hydrobromic acid (47% HBr), (2) an aqueous solution of sodium bromide and excess sulfuric acid, which is an equilibrium mixture containing hydrobromic acid, or (3) a ...
5.4.2 Organic nitrogen compounds: amines, amides, amino acids
... polymer made from carboxylic acid derivatives: polyesters and polyamides. i) Polyesters: A well-known polyester, Terylene, is made by heating ethane-1,2-diol with dimethylbenzene-1,4-dicarboxylate (dimethyl terepthalate): ...
... polymer made from carboxylic acid derivatives: polyesters and polyamides. i) Polyesters: A well-known polyester, Terylene, is made by heating ethane-1,2-diol with dimethylbenzene-1,4-dicarboxylate (dimethyl terepthalate): ...
Chapter 20: Carboxylic Acids
... Condensation of acids with amines (20-12) The reaction of carboxylic acids with amines is a simple acid/base reaction forming an ammonium salt. However, under more extreme conditions, when heat is applied it is possible to eliminate water from this salt and form amide. ...
... Condensation of acids with amines (20-12) The reaction of carboxylic acids with amines is a simple acid/base reaction forming an ammonium salt. However, under more extreme conditions, when heat is applied it is possible to eliminate water from this salt and form amide. ...
biochemistry - apbiostafford
... Draw a lipid molecule (triglyceride). Point out the carboxyl, or acid, group and the hydrocarbon chains. Explain the difference between a saturated fatty acid and an unsaturated fatty acid. For butter and corn oil, indicate whether each is considered a saturated or an unsaturated fat. Using a diagra ...
... Draw a lipid molecule (triglyceride). Point out the carboxyl, or acid, group and the hydrocarbon chains. Explain the difference between a saturated fatty acid and an unsaturated fatty acid. For butter and corn oil, indicate whether each is considered a saturated or an unsaturated fat. Using a diagra ...
Lecture 18
... Hormones carry messages between the central nervous system and nerve cells. Epinephrine (adrenaline) and norepinephrine (noradrenaline) are released by the adrenal medulla during stressful situations They raise the blood glucose level and move blood to the muscles. The prefix nor in a drug name mea ...
... Hormones carry messages between the central nervous system and nerve cells. Epinephrine (adrenaline) and norepinephrine (noradrenaline) are released by the adrenal medulla during stressful situations They raise the blood glucose level and move blood to the muscles. The prefix nor in a drug name mea ...
MULTISTEP SYNTHESIS PROTECTING GROUPS
... 7. PROTECTING GROUP STRATEGY - Acetanilide is used as the starting material in these reactions, but at the end the amide group gets hydrolyzed into an amine group. Why not start the reaction sequence with aniline (below) rather than acetanilide, and save the last step? The answer is that the amino ...
... 7. PROTECTING GROUP STRATEGY - Acetanilide is used as the starting material in these reactions, but at the end the amide group gets hydrolyzed into an amine group. Why not start the reaction sequence with aniline (below) rather than acetanilide, and save the last step? The answer is that the amino ...
C3 Topic 3 Ammonia and Functional Groups REVISION
... 37. If the concentration is the same for a strong acid and higher pH value than aqueous solutions of a weak acid, how will their pH’s compare? strong acids with the same concentration. ...
... 37. If the concentration is the same for a strong acid and higher pH value than aqueous solutions of a weak acid, how will their pH’s compare? strong acids with the same concentration. ...
Assignment 4 Task 1a
... Scenario: You are working as a CSI in a forensic biochemistry laboratory. You have been assigned to a new case and are working as part of a team to solve the case. Working in the laboratory you will need to have a good understanding of the conventions adopted to ensure that all chemical compounds ha ...
... Scenario: You are working as a CSI in a forensic biochemistry laboratory. You have been assigned to a new case and are working as part of a team to solve the case. Working in the laboratory you will need to have a good understanding of the conventions adopted to ensure that all chemical compounds ha ...
study guide and review for first semester final
... from percentage composition to determine the compound’s empirical formula. Ex. A compound with 0.90 g Ca and 1.6 g Cl has what empirical formula? (CaCl2) Ex. A white powder used in paints, enamels and ceramics has the following percentage composition: Ba 69.6 %; C 6.09%; O 24.3 %. What is its empiri ...
... from percentage composition to determine the compound’s empirical formula. Ex. A compound with 0.90 g Ca and 1.6 g Cl has what empirical formula? (CaCl2) Ex. A white powder used in paints, enamels and ceramics has the following percentage composition: Ba 69.6 %; C 6.09%; O 24.3 %. What is its empiri ...
Table
... AlcoholsEthers+Water Condensation reaction, eliminating H2O ; Dehydration Preparation Primary alcohols aldehydes Controlled oxidation reactions Secondary alcohols ketones Controlled oxidation reactions Pathways to other groups Aldehydes primary alcohols Addition reaction with hydrogen: hydroge ...
... AlcoholsEthers+Water Condensation reaction, eliminating H2O ; Dehydration Preparation Primary alcohols aldehydes Controlled oxidation reactions Secondary alcohols ketones Controlled oxidation reactions Pathways to other groups Aldehydes primary alcohols Addition reaction with hydrogen: hydroge ...
Lecture 18
... Hormones carry messages between the central nervous system and nerve cells. Epinephrine (adrenaline) and norepinephrine (noradrenaline) are released by the adrenal medulla during stressful situations They raise the blood glucose level and move blood to the muscles. The prefix nor in a drug name mea ...
... Hormones carry messages between the central nervous system and nerve cells. Epinephrine (adrenaline) and norepinephrine (noradrenaline) are released by the adrenal medulla during stressful situations They raise the blood glucose level and move blood to the muscles. The prefix nor in a drug name mea ...
10.6 Carboxylic Acids Learning Outcomes (a) describe the formation
... Describe the formation of carboxylic acids from alcohols and aldehydes You need to use excess of the oxidizing agent and make sure the aldehyde formed half-way stays in the reaction mixture. Again we see a colour change in the chromate when the alcohol is oxidized to the aldehyde and/ or the aldehy ...
... Describe the formation of carboxylic acids from alcohols and aldehydes You need to use excess of the oxidizing agent and make sure the aldehyde formed half-way stays in the reaction mixture. Again we see a colour change in the chromate when the alcohol is oxidized to the aldehyde and/ or the aldehy ...
Final - Courses
... But a newer body of research says we should look instead at the molecules before deprotonation for the real explanation of the difference in acidity between carboxylic acids and alcohols. What might this explanation be, and which one do you think is correct? ...
... But a newer body of research says we should look instead at the molecules before deprotonation for the real explanation of the difference in acidity between carboxylic acids and alcohols. What might this explanation be, and which one do you think is correct? ...
CHEMISTRY
... (1) Rate of zero order reaction is independent of initial concentration of reactant. (2) Half life of a third order reaction is inversely proportional to the square of initial concentration of the reactant. (3) Molecularity of a reaction may be zero of fraction (4) For a first order reaction t1/2= 0 ...
... (1) Rate of zero order reaction is independent of initial concentration of reactant. (2) Half life of a third order reaction is inversely proportional to the square of initial concentration of the reactant. (3) Molecularity of a reaction may be zero of fraction (4) For a first order reaction t1/2= 0 ...
Slide 1
... Urea has two amine (-NH2) groups joined by a carbonyl (C=O) functional group. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. The body uses it in many processes, most notably nitrogen e ...
... Urea has two amine (-NH2) groups joined by a carbonyl (C=O) functional group. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. The body uses it in many processes, most notably nitrogen e ...
Chapter 1 Chemical Bonding and Chemical Structure
... • Acyl azides provide access to primary amines via an isocyanate • Concerted reaction ...
... • Acyl azides provide access to primary amines via an isocyanate • Concerted reaction ...
Worksheet 1 - Oregon State chemistry
... Did you identify the chemical formula of 2,2,4-trimethyl pentane to be C8H18? ...
... Did you identify the chemical formula of 2,2,4-trimethyl pentane to be C8H18? ...
3.8 ADDITION OF WATER TO AN ALKENE H or enzyme + H-O
... Polymerization is the formation of extremely long molecules from small molecules called monomers. The plastics and rubber are examples of the most common polymers which are commonly used in both everyday life and in medical applications. The exact properties of polymers depends on a variety of chemi ...
... Polymerization is the formation of extremely long molecules from small molecules called monomers. The plastics and rubber are examples of the most common polymers which are commonly used in both everyday life and in medical applications. The exact properties of polymers depends on a variety of chemi ...
List of structures required at the exam of Medical Chemistry and
... carbon skeletons of amino acids gluconeogenesis, glycogen metabolism, urea cycle, general conversions of amino acids, β-oxidation, production of ketone bodies, metabolism of triacylglycerols, FA synthesis (up to malonyl-CoA, the rest schematically), synthesis of cholesterol (up to mevalonate) urea b ...
... carbon skeletons of amino acids gluconeogenesis, glycogen metabolism, urea cycle, general conversions of amino acids, β-oxidation, production of ketone bodies, metabolism of triacylglycerols, FA synthesis (up to malonyl-CoA, the rest schematically), synthesis of cholesterol (up to mevalonate) urea b ...
Petasis reaction
The Petasis reaction (alternatively called the Petasis borono–Mannich (PBM) reaction) is the chemical reaction of an amine, aldehyde, and vinyl- or aryl-boronic acid to form substituted amines.Reported in 1993 by Nicos Petasis as a practical method towards the synthesis of a geometrically pure antifungal agent, naftifine, the Petasis reaction can be described as a variation of the Mannich reaction. Rather than generating an enolate to form the substituted amine product, in the Petasis reaction, the vinyl group of the organoboronic acid serves as the nucleophile. In comparison to other methods of generating allyl amines, the Petasis reaction tolerates a multifunctional scaffold, with a variety of amines and organoboronic acids as potential starting materials. Additionally, the reaction does not require anhydrous or inert conditions. As a mild, selective synthesis, the Petasis reaction is useful in generating α-amino acids, and is utilized in combinatorial chemistry and drug discovery.