Chapter 2: Alkanes Alkanes are molecules comprised of hydrogen
... In order to do that the the attractive interactions between molecules must be overcome For alkanes the most significant attractive force between molecules are induced-dipole induced dipole interactions What is an induced-dipole? although alkanes are essentially neutral with regards to electronic dis ...
... In order to do that the the attractive interactions between molecules must be overcome For alkanes the most significant attractive force between molecules are induced-dipole induced dipole interactions What is an induced-dipole? although alkanes are essentially neutral with regards to electronic dis ...
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Reduction [H]
... Thioacetal (or thioketal) reduction or Mozingo reduction with Raney nickel and hydrogen is a classic method to prepare a methylene group from a carbonyl compound. Raney Nickel was developed in 1926 by American engineer Murray Raney. ( "Method of producing finely-divided nickel,"U.S. patent 1,628,190 ...
... Thioacetal (or thioketal) reduction or Mozingo reduction with Raney nickel and hydrogen is a classic method to prepare a methylene group from a carbonyl compound. Raney Nickel was developed in 1926 by American engineer Murray Raney. ( "Method of producing finely-divided nickel,"U.S. patent 1,628,190 ...
doc
... The more stable radical forms faster. See Figure 10.2, p. 322. Bromination is even more selective. ...
... The more stable radical forms faster. See Figure 10.2, p. 322. Bromination is even more selective. ...
Chem 30CL-Lecture 12.. - UCLA Chemistry and Biochemistry
... they contain electrophilic atoms: -CHO, -COR, -CONR2, -COOR, -C≡N, -NO2, -SO2R, epoxides (ring opening) If more than one of these groups is present, groups that are ...
... they contain electrophilic atoms: -CHO, -COR, -CONR2, -COOR, -C≡N, -NO2, -SO2R, epoxides (ring opening) If more than one of these groups is present, groups that are ...
Balancing Equations
... • I can list the main types of chemical reactions. • I can identify reactants and products in a chemical equation. • I can balance chemical equations when all reactants and products are ...
... • I can list the main types of chemical reactions. • I can identify reactants and products in a chemical equation. • I can balance chemical equations when all reactants and products are ...
Chapter 7 Chemical Reactions
... There are millions of compounds that will produce endless chemical reactions, therefore not all chemical reactions can be carried out in the laboratory A system is used to classify chemical reactions, which allows chemist to recognize patterns and predict the products of reactions One of these ...
... There are millions of compounds that will produce endless chemical reactions, therefore not all chemical reactions can be carried out in the laboratory A system is used to classify chemical reactions, which allows chemist to recognize patterns and predict the products of reactions One of these ...
Application of Bioisosteres in Drug Design
... Why the oxetane shows the high affinity for hydrogen bonds? 1. For cyclic ethers, a decrease in the ring size is accompanied by a diminution in the corresponding endocyclic C-O-C angle. This has the effect of exposing the oxygen atom more effectively to hydrogen-bond donors. 2. An increase in the s ...
... Why the oxetane shows the high affinity for hydrogen bonds? 1. For cyclic ethers, a decrease in the ring size is accompanied by a diminution in the corresponding endocyclic C-O-C angle. This has the effect of exposing the oxygen atom more effectively to hydrogen-bond donors. 2. An increase in the s ...
Alcohol oxidation
... The Sharpless epoxidation is viable with a large range of primary and secondary olefinic alcohols. To demonstrate the synthetic utility of the Sharpless Epoxidation, the Sharpless group created synthetic intermediates of various natural products: methymycin, erythromycin, leukotriene C-1, and (+)-di ...
... The Sharpless epoxidation is viable with a large range of primary and secondary olefinic alcohols. To demonstrate the synthetic utility of the Sharpless Epoxidation, the Sharpless group created synthetic intermediates of various natural products: methymycin, erythromycin, leukotriene C-1, and (+)-di ...
Chem 350 Jasperse Ch. 6 Summary of Reaction Types, Ch. 4
... Often an atom gives up an old bond and replaces it with a new bond. This is “substitution”. In this case, there will be an incoming arrow pointing directly at the atom (to illustrate formation of the new bond), and an outgoing arrow emanating from the old bond that breaks ...
... Often an atom gives up an old bond and replaces it with a new bond. This is “substitution”. In this case, there will be an incoming arrow pointing directly at the atom (to illustrate formation of the new bond), and an outgoing arrow emanating from the old bond that breaks ...
1) In the reaction H2O + CH3COOH H3O+ + CH3COO
... Numerical Problems. You must show all your work for complete credit. 6) (20 points) Consider an aqueous solution which contains 0.010 M acetic acid (CH3COOH), 0.010 M sodium acetate (Na+ CH3COO-) and 0.010 M sodium chloride (Na+ Cl-). The pKA of acetic acid is 4.75. a) Assuming that all activity co ...
... Numerical Problems. You must show all your work for complete credit. 6) (20 points) Consider an aqueous solution which contains 0.010 M acetic acid (CH3COOH), 0.010 M sodium acetate (Na+ CH3COO-) and 0.010 M sodium chloride (Na+ Cl-). The pKA of acetic acid is 4.75. a) Assuming that all activity co ...
Compounds Containing a C=O (Carbonyl) Group
... reaction at the α-carbon. A C—H bond on the α carbon to a carbonyl group is more acidic than many other C—H bonds, because reaction with base forms a resonance-stabilized enolate anion. ...
... reaction at the α-carbon. A C—H bond on the α carbon to a carbonyl group is more acidic than many other C—H bonds, because reaction with base forms a resonance-stabilized enolate anion. ...
Ch 20 Carboxylic Acids and Nitriles
... to the electrophilic carbon atom of CO2. Note that the carboxylic acid has one more C than the Grignard reagent. ...
... to the electrophilic carbon atom of CO2. Note that the carboxylic acid has one more C than the Grignard reagent. ...
Methods S2.
... described by Czarna et al. (1). Briefly, the fluorescence polarization experiments were read on an Ultra Evolution 384-well plate reader (Tecan) with the 485 nm excitation and 535 nm emission filters. The fluorescence intensities parallel (Intparallel) and perpendicular (Intperpedicular) to the plan ...
... described by Czarna et al. (1). Briefly, the fluorescence polarization experiments were read on an Ultra Evolution 384-well plate reader (Tecan) with the 485 nm excitation and 535 nm emission filters. The fluorescence intensities parallel (Intparallel) and perpendicular (Intperpedicular) to the plan ...
7.2 Writing Chemical Equations
... Chemical reactions can be described in different ways: descriptions, word equations, skeleton equations, and balanced equations. In writing chemical equations, reactants are written to the left of the arrow and the products are written to the right. Separate reactants and products are separated by ...
... Chemical reactions can be described in different ways: descriptions, word equations, skeleton equations, and balanced equations. In writing chemical equations, reactants are written to the left of the arrow and the products are written to the right. Separate reactants and products are separated by ...
Chapter 9 Alcohols, Ethers, and Epoxides
... • Step 1, formation of the tosylate, proceeds with retention of configuration at a stereogenic center. • Step 2 is an SN2 reaction, so it proceeds with inversion of configuration because the nucleophile attacks from the backside. • Overall there is a net inversion of configuration at a stereogenic ...
... • Step 1, formation of the tosylate, proceeds with retention of configuration at a stereogenic center. • Step 2 is an SN2 reaction, so it proceeds with inversion of configuration because the nucleophile attacks from the backside. • Overall there is a net inversion of configuration at a stereogenic ...
- Wiley Online Library
... (R,R)-16 a and (R,R)-16 b. The authors found the 1,2-reduction to be slower than the hydroacylation; it did in fact not occur at lower temperature (4 8C instead of 40 8C). a-Chiral ketones such as (R)-17 a and (R)-17 c thus became accessible. The groups of Liu and Buchwald even accomplished the addi ...
... (R,R)-16 a and (R,R)-16 b. The authors found the 1,2-reduction to be slower than the hydroacylation; it did in fact not occur at lower temperature (4 8C instead of 40 8C). a-Chiral ketones such as (R)-17 a and (R)-17 c thus became accessible. The groups of Liu and Buchwald even accomplished the addi ...
Chem 1151: Ch. 3
... Seager SL, Slabaugh MR, Chemistry for Today: General, Organic and Biochemistry, 7 th Edition, 2011; http://web.fccj.org/~ethall/stereo/stereo.htm ...
... Seager SL, Slabaugh MR, Chemistry for Today: General, Organic and Biochemistry, 7 th Edition, 2011; http://web.fccj.org/~ethall/stereo/stereo.htm ...
Chemical Reactions and Enzymes
... “lock and key” model effect of temp. and pH on enzyme activity effect of concentration on enzyme activity ...
... “lock and key” model effect of temp. and pH on enzyme activity effect of concentration on enzyme activity ...
Fall.2008.Week9.Lesson.2 - reich
... • Combustion means burning and fire. What two things does fire require? O2 and something to burn. We normally burn hydrocarbons (Hydro=H, Carbon = C therefore stuff made up of H and C). • The products are always CO2 and H2O. • Methane and Oxygen burn write the equation. • ___CH4+ ___O2 ___ CO2 + _ ...
... • Combustion means burning and fire. What two things does fire require? O2 and something to burn. We normally burn hydrocarbons (Hydro=H, Carbon = C therefore stuff made up of H and C). • The products are always CO2 and H2O. • Methane and Oxygen burn write the equation. • ___CH4+ ___O2 ___ CO2 + _ ...
Cycloalkanes - faculty at Chemeketa
... Two isomeric forms of decalin: trans fused or cis fused In cis-decalin hydrogen atoms at the bridgehead carbons are on the same face of the rings In trans-decalin, the bridgehead hydrogens are on opposite ...
... Two isomeric forms of decalin: trans fused or cis fused In cis-decalin hydrogen atoms at the bridgehead carbons are on the same face of the rings In trans-decalin, the bridgehead hydrogens are on opposite ...
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.