L refers to the left hand orientation of the OH on the chiral carbon
... a 6-member pyranose ring, by reaction of the C2 keto group with the OH on C6, or a 5-member furanose ring, by reaction of the C2 keto group with the OH on C5. ...
... a 6-member pyranose ring, by reaction of the C2 keto group with the OH on C6, or a 5-member furanose ring, by reaction of the C2 keto group with the OH on C5. ...
4.4 Topic Checklist Nomenclature and isomerism in Organic
... Specification content be able to apply IUPAC rules for nomenclature not only to the simple organic compounds, limited to chains with up to 6 carbon atoms, met at AS, but also to benzene and the functional groups listed in this unit know and understand the meaning of the term structural isomerism kno ...
... Specification content be able to apply IUPAC rules for nomenclature not only to the simple organic compounds, limited to chains with up to 6 carbon atoms, met at AS, but also to benzene and the functional groups listed in this unit know and understand the meaning of the term structural isomerism kno ...
nucleophilic addition on ketones and ketimines - ISI
... which will in turn allow the transfer of the allyl group to the copper atom. The addition of La(Oi Pr)3 as a Lewis acid accelerates the reaction, presumably by participation in the transmetallation step that leads to the active allylcopper species. This catalytic system was also applied to the first ...
... which will in turn allow the transfer of the allyl group to the copper atom. The addition of La(Oi Pr)3 as a Lewis acid accelerates the reaction, presumably by participation in the transmetallation step that leads to the active allylcopper species. This catalytic system was also applied to the first ...
Lab 2 - Academic Computer Center
... with a positive reagent (electrophile). A EWG “pulls” electron density toward itself from the rest of the molecule, creating a positive center that facilitates a reaction with a negative reagent (nucleophile). Electron-Donating Groups ...
... with a positive reagent (electrophile). A EWG “pulls” electron density toward itself from the rest of the molecule, creating a positive center that facilitates a reaction with a negative reagent (nucleophile). Electron-Donating Groups ...
Section 16.1 A Model for Reaction Rates
... • Bonds in the reactants are in the process of breaking, while new bonds are beginning to form to produce the products. • Q8: Apply collision theory to explain why collisions between two reacting particles do not always result in the formation of a product. • The collision must be in a correct orien ...
... • Bonds in the reactants are in the process of breaking, while new bonds are beginning to form to produce the products. • Q8: Apply collision theory to explain why collisions between two reacting particles do not always result in the formation of a product. • The collision must be in a correct orien ...
DODH by Molybdenum Innovation Introduction DODH by Rhenium
... reductant and catalyst were carried out. To the right are shown the kinetic profiles for the standard experiment (green), less reductant (blue) and less catalyst (red), figure 5. This kinetic behaviour can be explained by a catalytic cycle driven by the reduction of Re(VII) to Re(V) by oxidation of ...
... reductant and catalyst were carried out. To the right are shown the kinetic profiles for the standard experiment (green), less reductant (blue) and less catalyst (red), figure 5. This kinetic behaviour can be explained by a catalytic cycle driven by the reduction of Re(VII) to Re(V) by oxidation of ...
Chemical Reactions - thsicp-23
... and form a compound. (Sometimes these are called combination or addition reactions.) reactant + reactant 1 product Basically: A + B AB ...
... and form a compound. (Sometimes these are called combination or addition reactions.) reactant + reactant 1 product Basically: A + B AB ...
Introduction to Organic Synthesis
... that is not always easy to achieve by more conventional means. In planning synthesis of polysubstituted aromatics, the order of reactions is important to ensure that the reagents are compatible and to take advantage of the directing effect of existing substituents: ...
... that is not always easy to achieve by more conventional means. In planning synthesis of polysubstituted aromatics, the order of reactions is important to ensure that the reagents are compatible and to take advantage of the directing effect of existing substituents: ...
Organic Chemistry II / CHEM 252 Chapter 21 – Phenoles and Aryl
... • Allyl phenyl ethers undergo a rearrangement to an allyl phenol • intramolecular; the allyl group migrates to the aromatic ring – The unstable keto intermediate undergoes keto-enol tautomerization to give the phenol group • The reaction is concerted. ...
... • Allyl phenyl ethers undergo a rearrangement to an allyl phenol • intramolecular; the allyl group migrates to the aromatic ring – The unstable keto intermediate undergoes keto-enol tautomerization to give the phenol group • The reaction is concerted. ...
The collision theory of reactions
... carbocation and carry a full positive charge, or it may be part of a neutral molecule (as in the above example with bromobutane) and carry a partial positive charge as a result of bond polarisation. If X- represents a nucleophile, the nucleophilic substitution process is: ...
... carbocation and carry a full positive charge, or it may be part of a neutral molecule (as in the above example with bromobutane) and carry a partial positive charge as a result of bond polarisation. If X- represents a nucleophile, the nucleophilic substitution process is: ...
+ H 2 O(g)
... Info on Decomp Reactions • Energy is usually need to make these reactions happen • Often hard to predict products unless the substance breaks into its ...
... Info on Decomp Reactions • Energy is usually need to make these reactions happen • Often hard to predict products unless the substance breaks into its ...
Organic #2
... Name the isomer that is resistant to oxidation. Classify this alcohol as primary, secondary or tertiary. Depending on reaction conditions, oxidation of butan-1-ol can give two different organic products. Name the functional group present in each of these products. Explain how you could distinguish b ...
... Name the isomer that is resistant to oxidation. Classify this alcohol as primary, secondary or tertiary. Depending on reaction conditions, oxidation of butan-1-ol can give two different organic products. Name the functional group present in each of these products. Explain how you could distinguish b ...
Chemical Equations TrackStar Assignment
... 2. What is a reversible reaction and how is it indicated? 3. Write the reaction for a silver spoon tarnishing. What type of reaction is this? 4. Write the reaction for the burning of Methane gas (the gas used in Chemistry lab). What type of reaction is this? 5. Write the reaction of the neutralizati ...
... 2. What is a reversible reaction and how is it indicated? 3. Write the reaction for a silver spoon tarnishing. What type of reaction is this? 4. Write the reaction for the burning of Methane gas (the gas used in Chemistry lab). What type of reaction is this? 5. Write the reaction of the neutralizati ...
ORGANIC CHEMISTRY
... • generic alkene formula is CnH2n • Unsaturated – because of the double bond, has less than maximum number of hydrogens • Count the number of carbons and use appropriate prefix with “ene” ending. • As necessary, number the carbons so as to identify the location of the double bond on the lowest numbe ...
... • generic alkene formula is CnH2n • Unsaturated – because of the double bond, has less than maximum number of hydrogens • Count the number of carbons and use appropriate prefix with “ene” ending. • As necessary, number the carbons so as to identify the location of the double bond on the lowest numbe ...
PDF
... • The amount of product calculated in the last three examples are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from o ...
... • The amount of product calculated in the last three examples are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from o ...
N.b. A catalyst is a species which speeds up a chemical reaction but
... The intermediate in the reaction which forms 1-iodopropane is too unstable. This is called a regioselective reaction as only one of the possible products is formed. This is also a special ...
... The intermediate in the reaction which forms 1-iodopropane is too unstable. This is called a regioselective reaction as only one of the possible products is formed. This is also a special ...
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. ...
PPT
... that will be the source of factors needed to solve numerical problems. The following are two of the possible ...
... that will be the source of factors needed to solve numerical problems. The following are two of the possible ...
CHEM 203 Topics Discussed on Nov. 20 Principle: protonation of
... Principle: protonation of alcohols transforms the OH group into an incipient molecule of H2O, which is the conjugate base of a strong Bronsted acid, H3O+ (pKa ≈ –2). So, H2O can function as a leaving group in SN2/SN1 or E2/E1 reactions (cf. the case of ethers; notes of Nov. 16) Note: the OH group pe ...
... Principle: protonation of alcohols transforms the OH group into an incipient molecule of H2O, which is the conjugate base of a strong Bronsted acid, H3O+ (pKa ≈ –2). So, H2O can function as a leaving group in SN2/SN1 or E2/E1 reactions (cf. the case of ethers; notes of Nov. 16) Note: the OH group pe ...
4.6, 4.7 test - A
... Cumene, C6H5CH(CH3)2, is the major organic product obtained when benzene and propene react together in the presence of aluminium chloride and hydrogen chloride. (a) ...
... Cumene, C6H5CH(CH3)2, is the major organic product obtained when benzene and propene react together in the presence of aluminium chloride and hydrogen chloride. (a) ...
Chapter 1 Chirality in clinical analysis 1.1. Introduction
... 1.6.1 Chirality and clinical diagnosis The presence of chiral compounds in human fluids (e.g., serum, urine, spinal fluids) as metabolites of human metabolism or drug metabolism gives the vitality for monitoring levels of these molecules in biofluids. The existence of higher or lower levels of these ...
... 1.6.1 Chirality and clinical diagnosis The presence of chiral compounds in human fluids (e.g., serum, urine, spinal fluids) as metabolites of human metabolism or drug metabolism gives the vitality for monitoring levels of these molecules in biofluids. The existence of higher or lower levels of these ...
Asymmetric induction
Asymmetric induction (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent, catalyst or environment. Asymmetric induction is a key element in asymmetric synthesis.Asymmetric induction was introduced by Hermann Emil Fischer based on his work on carbohydrates. Several types of induction exist.Internal asymmetric induction makes use of a chiral center bound to the reactive center through a covalent bond and remains so during the reaction. The starting material is often derived from chiral pool synthesis. In relayed asymmetric induction the chiral information is introduced in a separate step and removed again in a separate chemical reaction. Special synthons are called chiral auxiliaries. In external asymmetric induction chiral information is introduced in the transition state through a catalyst of chiral ligand. This method of asymmetric synthesis is economically most desirable.