O R` R
... halides via an SN2 mechanism. • A strong base (usually an alkyllithium or phenyllithium) is required to remove a proton from the intermediate alkyltriphenylphosphonium salt. (C 6H5)3P ...
... halides via an SN2 mechanism. • A strong base (usually an alkyllithium or phenyllithium) is required to remove a proton from the intermediate alkyltriphenylphosphonium salt. (C 6H5)3P ...
Chem 30CL - Lecture 1d - UCLA Chemistry and Biochemistry
... • Chiral carboxylic acids and chiral amines are converted into diastereomeric salts that are separated by fractionated crystallization in a suitable solvent i.e., water, methanol, etc. • Chiral alcohols are resolved by converting them to (half) esters • Chiral aldehyde and ketones are converted into ...
... • Chiral carboxylic acids and chiral amines are converted into diastereomeric salts that are separated by fractionated crystallization in a suitable solvent i.e., water, methanol, etc. • Chiral alcohols are resolved by converting them to (half) esters • Chiral aldehyde and ketones are converted into ...
Honors Chemistry- Chapter 16 Homework Packet Reaction Energy
... 4) 2.5 kJ of heat energy is added to a 75 gram sample of copper metal. If the metal starts at a temperature of 45°C, what will the final temperature of the copper metal be? (Cp (Cu) = 0.385 J/g°C). ...
... 4) 2.5 kJ of heat energy is added to a 75 gram sample of copper metal. If the metal starts at a temperature of 45°C, what will the final temperature of the copper metal be? (Cp (Cu) = 0.385 J/g°C). ...
Lecture Resource ()
... (b) the Nu– is a stronger base (c) the Nu– and the leaving group have similar basicities ...
... (b) the Nu– is a stronger base (c) the Nu– and the leaving group have similar basicities ...
Unit 10 - Renton School District
... Compounds up to six carbon atoms (in the basic chain for nomenclature purposes) containing only one of the classes of functional groups: alcohols, ethers, aldehydes, halogenoalkanes, ketones, esters and carboxylic acids. ...
... Compounds up to six carbon atoms (in the basic chain for nomenclature purposes) containing only one of the classes of functional groups: alcohols, ethers, aldehydes, halogenoalkanes, ketones, esters and carboxylic acids. ...
Chapter 4. Functional Group Transformations: Oxidation and
... The rate of reduction and the chemoselectivity of a reducing agent toward a given substrate depends on factors such as 1. the nature of the metal cation (Li+, Na+, Zn2+), which serves as a Lewis acid to activate the carbonyl or cyano moiety toward hydride transfer. 2. substitution of the reducing ag ...
... The rate of reduction and the chemoselectivity of a reducing agent toward a given substrate depends on factors such as 1. the nature of the metal cation (Li+, Na+, Zn2+), which serves as a Lewis acid to activate the carbonyl or cyano moiety toward hydride transfer. 2. substitution of the reducing ag ...
ENZYME MIMIC ASYMMETRIC ALDOL REACTIONS
... which generally bind non-covalently with antibodies. However, if chemically reactive antigens are used, a covalent bonding can occur between the antibody and the antigen during immunization. Thus, the selection criteria of the immune system are switched from binding affinity to chemical reactivity. ...
... which generally bind non-covalently with antibodies. However, if chemically reactive antigens are used, a covalent bonding can occur between the antibody and the antigen during immunization. Thus, the selection criteria of the immune system are switched from binding affinity to chemical reactivity. ...
Physical Properties OF Aldehydes And Ketones
... These attractions although important, are not as strong as interactions due to hydrogen bonding as a result, the boiling points of aldehydes and ketones are higher than those of non polar alkanes, but lower than those of alcohols whose molecules are connected together by H-bonds. ...
... These attractions although important, are not as strong as interactions due to hydrogen bonding as a result, the boiling points of aldehydes and ketones are higher than those of non polar alkanes, but lower than those of alcohols whose molecules are connected together by H-bonds. ...
Discussion Worksheet #10 Formation of Alcohols Skill 1: Functional
... Problem 5. Plan two alternative syntheses involving Grignard reagents for each of these compounds. If two syntheses are not possible, explain. In which cases could an ester be used as the starting material? 1. xs CH3Ch2MgI 2. H3O+ ...
... Problem 5. Plan two alternative syntheses involving Grignard reagents for each of these compounds. If two syntheses are not possible, explain. In which cases could an ester be used as the starting material? 1. xs CH3Ch2MgI 2. H3O+ ...
haloalkanes 2013
... The OH¯ removes a proton from a carbon atom adjacent the C bearing the halogen. If there had been another carbon atom on the other side of the C-Halogen bond, its hydrogen(s) would also be open to attack. If the haloalkane is unsymmetrical (e.g. 2bromobutane) a mixture of isomeric alkene products is ...
... The OH¯ removes a proton from a carbon atom adjacent the C bearing the halogen. If there had been another carbon atom on the other side of the C-Halogen bond, its hydrogen(s) would also be open to attack. If the haloalkane is unsymmetrical (e.g. 2bromobutane) a mixture of isomeric alkene products is ...
Chemical Reactions
... The reactants are separated from each other by a plus sign and the products are separated from each other by a plus sign. There should be an arrow in the middle. Examples: When sodium is mixed with water, a purple alkaline solution of sodium hydroxide is produced and hydrogen gas is evolved. Sodium ...
... The reactants are separated from each other by a plus sign and the products are separated from each other by a plus sign. There should be an arrow in the middle. Examples: When sodium is mixed with water, a purple alkaline solution of sodium hydroxide is produced and hydrogen gas is evolved. Sodium ...
2-D 3-D
... usually ionic, though they can have covalent bonds. Since carbon has four electrons in its outer shell, it forms four covalent (shared) bonds. These may be single, double or triple bonds as long as the total number of bonds to carbon equals four. Other elements, such as hydrogen and oxygen, are foun ...
... usually ionic, though they can have covalent bonds. Since carbon has four electrons in its outer shell, it forms four covalent (shared) bonds. These may be single, double or triple bonds as long as the total number of bonds to carbon equals four. Other elements, such as hydrogen and oxygen, are foun ...
Introduction to Chemistry
... Ionic- Two elements bond by transferring electrons to create ions that attract together (+ is attracted to - after an electron is transferred) ...
... Ionic- Two elements bond by transferring electrons to create ions that attract together (+ is attracted to - after an electron is transferred) ...
+ H 2 SO 4(aq) - Rothschild Science
... Until you get good at this, it is helpful to write the number of atoms of each element on both sides of the equation. It helps you to keep track of the atoms. ...
... Until you get good at this, it is helpful to write the number of atoms of each element on both sides of the equation. It helps you to keep track of the atoms. ...
Chapter 20. Aldehydes and Ketones
... compound (C6H5)2CHOH by adding C6H5MgBr to benzaldehyde. To insure that the chemical yield would be high, our dedicated student prepared one mole of the Grignard reagent, added two moles of benzaldehyde, and, after working up the reaction, was delighted to obtain a good yield of a crystalline produc ...
... compound (C6H5)2CHOH by adding C6H5MgBr to benzaldehyde. To insure that the chemical yield would be high, our dedicated student prepared one mole of the Grignard reagent, added two moles of benzaldehyde, and, after working up the reaction, was delighted to obtain a good yield of a crystalline produc ...
Word Equations • a summary
... Reactions in which one element “displaces” or replaces another in a compound. The general formula is an element reacting with a compound to produce a new element and a new compound. A metal (cation) can displace another metal (cation) or hydrogen: X + YZ Y + XZ eg. 1 Mg + ZnCl2 Zn + MgCl2 ...
... Reactions in which one element “displaces” or replaces another in a compound. The general formula is an element reacting with a compound to produce a new element and a new compound. A metal (cation) can displace another metal (cation) or hydrogen: X + YZ Y + XZ eg. 1 Mg + ZnCl2 Zn + MgCl2 ...
ORGANIC CHEMISTRY: The chemistry of carbon compounds
... 9. The general formula for an alcohol is: R - OH 10. Benzene is a member of the _____ homologous group. aromatic 11. Alcohols must have this group attached. hydroxyl 12. Longer-chained alcohol like octanol are: not soluble in water and are nonpolar 13 This compound is produced from benzene and is us ...
... 9. The general formula for an alcohol is: R - OH 10. Benzene is a member of the _____ homologous group. aromatic 11. Alcohols must have this group attached. hydroxyl 12. Longer-chained alcohol like octanol are: not soluble in water and are nonpolar 13 This compound is produced from benzene and is us ...
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.