Slide 1
... Structural Levels of Proteins • Primary – amino acid sequence • Secondary – alpha helices or beta pleated ...
... Structural Levels of Proteins • Primary – amino acid sequence • Secondary – alpha helices or beta pleated ...
Carboxylic acids, esters, and other acid derivatives
... If you can remember that 1o alcohols can be oxidized to aldehydes, and then to ketones, the reduction reactions are much easier to do (just reverse of the oxidation reactions) ...
... If you can remember that 1o alcohols can be oxidized to aldehydes, and then to ketones, the reduction reactions are much easier to do (just reverse of the oxidation reactions) ...
Lecture - Ch 21
... – Named similarly to the corresponding esters – Prefix thio- is added to carboxylate if ester has a common name – –oate or carboxylate is replaced by –thioate or carbothioate if ester has a systematic name ...
... – Named similarly to the corresponding esters – Prefix thio- is added to carboxylate if ester has a common name – –oate or carboxylate is replaced by –thioate or carbothioate if ester has a systematic name ...
Identification of Ketones and Aldehydes
... Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon, the other ...
... Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon, the other ...
Reactions of Alcohols
... • Oxidation: loss of H2, gain of O, O2, or X2 • Reduction: gain of H2 or H-, loss of O, O2, or X2 • Neither: gain or loss of H+, H2O, HX ...
... • Oxidation: loss of H2, gain of O, O2, or X2 • Reduction: gain of H2 or H-, loss of O, O2, or X2 • Neither: gain or loss of H+, H2O, HX ...
AS 2, Module 2
... (ii) In the reaction of hex-1-ene with bromine a carbon-carbon double bond is broken requiring 612 kJ mol21 and a bromine-bromine bond requiring 193 kJ mol21. At the same time a carbon-carbon single bond is formed releasing 348 kJ mol21 and two C Br bonds are formed. Using the molar enthalpy of b ...
... (ii) In the reaction of hex-1-ene with bromine a carbon-carbon double bond is broken requiring 612 kJ mol21 and a bromine-bromine bond requiring 193 kJ mol21. At the same time a carbon-carbon single bond is formed releasing 348 kJ mol21 and two C Br bonds are formed. Using the molar enthalpy of b ...
Slide 1
... 1. When two or more substituents are on the same carbon, use the number twice. 2. When two or more substituents are identical, use prefixes 3. When two chains are the same length, use the one with the most substituents on it. 4. If substituents are at equall distances from the ends of the chain, go ...
... 1. When two or more substituents are on the same carbon, use the number twice. 2. When two or more substituents are identical, use prefixes 3. When two chains are the same length, use the one with the most substituents on it. 4. If substituents are at equall distances from the ends of the chain, go ...
69. A general approach to the enantioselective -oxidation of aldehydes via synergistic catalysis
... strategies continue to expand the range of starting materials or functional groups from which this important stereogenicity can be created. Recently, the enantioselective a-oxidation of aldehydes has garnered substantial attention as a novel catalytic approach to asymmetric oxygen-bearing stereocent ...
... strategies continue to expand the range of starting materials or functional groups from which this important stereogenicity can be created. Recently, the enantioselective a-oxidation of aldehydes has garnered substantial attention as a novel catalytic approach to asymmetric oxygen-bearing stereocent ...
Inorganic and organic chemistry 2
... Sulfur dioxide being oxidised to sulfate(VI) ions has a potential of −0.17 V. Adding this to each of the potentials for the vanadium half-equations gives +0.83 V (so +5 to +4 is feasible), +0.17 V (so +4 to +3 is feasible) and −0.42 V (so +3 to +2 is not feasible), so sulfur dioxide reduces vanadium ...
... Sulfur dioxide being oxidised to sulfate(VI) ions has a potential of −0.17 V. Adding this to each of the potentials for the vanadium half-equations gives +0.83 V (so +5 to +4 is feasible), +0.17 V (so +4 to +3 is feasible) and −0.42 V (so +3 to +2 is not feasible), so sulfur dioxide reduces vanadium ...
Revised organic compounds containing Nitrogen
... compound and, hence, the more nucleophilic nitrogen through its lone pair of electrons attacks and as a result, nitro compounds are formed as major products. This method is only useful for the preparation of primary nitroalkanes. With the secondary halides the yield is very low, and with tertiary ha ...
... compound and, hence, the more nucleophilic nitrogen through its lone pair of electrons attacks and as a result, nitro compounds are formed as major products. This method is only useful for the preparation of primary nitroalkanes. With the secondary halides the yield is very low, and with tertiary ha ...
Reductive Coupling Reactions of Nitrones and Imines
... be radical acceptors,5, 6 particularly in radical-mediated cyclizations with alkyl halides. Much progress has also been made on intramolecular versions of these processes, due to their highly organized and stable cyclic transition states and low rates of competing homocoupling reactions (Scheme 1). ...
... be radical acceptors,5, 6 particularly in radical-mediated cyclizations with alkyl halides. Much progress has also been made on intramolecular versions of these processes, due to their highly organized and stable cyclic transition states and low rates of competing homocoupling reactions (Scheme 1). ...
Experiment #9 – Identification of Aldehydes and Ketones
... Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other ...
... Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other ...
the chemistry of smell
... PURPOSE: The purpose of this experiment is study the chemistry involved in smell. LEARNING OBJECTIVES: ...
... PURPOSE: The purpose of this experiment is study the chemistry involved in smell. LEARNING OBJECTIVES: ...
Organic Chemistry
... THOMAS POON is Professor of Chemistry in the W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, three of the five undergraduate institutions that make up the Claremont Colleges in Claremont, California. He received his B.S. degree from Fairfield University (CT) and his ...
... THOMAS POON is Professor of Chemistry in the W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, three of the five undergraduate institutions that make up the Claremont Colleges in Claremont, California. He received his B.S. degree from Fairfield University (CT) and his ...
Document
... Obviously specific rotation for two anomers is different (and even for furanose and pyranose forms of a same sugar); thus a solution of a pure isomer freshly prepared has a rotation angle varying during time till it reaches a constant value (at equilibrium among the various forms). ...
... Obviously specific rotation for two anomers is different (and even for furanose and pyranose forms of a same sugar); thus a solution of a pure isomer freshly prepared has a rotation angle varying during time till it reaches a constant value (at equilibrium among the various forms). ...
CH 3
... All enantiomers have a stereogenic center carbon. This makes the molecule chiral having a non-superimposable mirror image. When we name these enantiomers it is necessary to distinguish them from one another. As it turns out each enantiomer in the pair has opposite configuration. Configuration is th ...
... All enantiomers have a stereogenic center carbon. This makes the molecule chiral having a non-superimposable mirror image. When we name these enantiomers it is necessary to distinguish them from one another. As it turns out each enantiomer in the pair has opposite configuration. Configuration is th ...
Chapter 19 Amines
... hydroxylamine (zero alkyl groups) with a ketone or an aldehyde, followed by reduction of the oxime. LiAlH4 or NaBH3CN can be used to reduce the oxime. Chapter 19 ...
... hydroxylamine (zero alkyl groups) with a ketone or an aldehyde, followed by reduction of the oxime. LiAlH4 or NaBH3CN can be used to reduce the oxime. Chapter 19 ...
Chapter 12 Carboxylic Acids
... Cyclic anhydrides can sometimes be prepared simply by heating the appropriate decarboxylic acid. This method succeeds, however, only when anhydride formation leads to a five- or six-membered ring: ...
... Cyclic anhydrides can sometimes be prepared simply by heating the appropriate decarboxylic acid. This method succeeds, however, only when anhydride formation leads to a five- or six-membered ring: ...
Asymmetric Synthesis: Substrate and Auxiliary Control
... ▪ All the methods described above required a chiral molecule to be present from the outset (substrate, reagent, catalyst, etc.). This is an absolute requirement when creating a chiral molecule from achiral starting materials. ▪ Consider the following reaction: ...
... ▪ All the methods described above required a chiral molecule to be present from the outset (substrate, reagent, catalyst, etc.). This is an absolute requirement when creating a chiral molecule from achiral starting materials. ▪ Consider the following reaction: ...
GCE Chemistry Question Paper Unit 04 - Kinetics, Equilibria
... Use the data from Experiment 1 to calculate a value for the rate constant (k) at this temperature. Deduce the units of k. Calculation ......................................................................................................................... ...
... Use the data from Experiment 1 to calculate a value for the rate constant (k) at this temperature. Deduce the units of k. Calculation ......................................................................................................................... ...
Chapter 19 Amines - Welcome to Terry Sherlock's Web Site
... isolated due to inversion around N. ...
... isolated due to inversion around N. ...
Document
... • Jones Reagent Harsher Oxidant (1° Alcohol Carboxylic Acid) • Alcohol Often Dissolved in Acetone While Jones Reagent Added • Choose Oxidant Based on Desired Carbonyl Functional Group ...
... • Jones Reagent Harsher Oxidant (1° Alcohol Carboxylic Acid) • Alcohol Often Dissolved in Acetone While Jones Reagent Added • Choose Oxidant Based on Desired Carbonyl Functional Group ...
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.