chapter 2: reactions of organic compounds
... •H and X (from H-X) where X= Cl , Br, or I •X and X from (X2) where X= Cl , Br, or I •H and H (from H2) ...
... •H and X (from H-X) where X= Cl , Br, or I •X and X from (X2) where X= Cl , Br, or I •H and H (from H2) ...
Chapter 14 – Aldehydes and Ketones
... That is, a hydrogen atom will be added to each atom of the double bond, converting the aldehyde or ketone into an alcohol. We can add this hydrogen in one of two different ways. The first is to split apart a hydrogen molecule and add the two product hydrogen atoms or to use a hydride donor, followed ...
... That is, a hydrogen atom will be added to each atom of the double bond, converting the aldehyde or ketone into an alcohol. We can add this hydrogen in one of two different ways. The first is to split apart a hydrogen molecule and add the two product hydrogen atoms or to use a hydride donor, followed ...
Chapter_Sixteen_lecture
... list their major applications Be able to describe and predict the products of the oxidation and reduction of aldehydes and ketones. Be able to recognize hemiacetals and acetals, describe the conditions under which they are formed, and predict the products of hemiacetal and acetal formation and aceta ...
... list their major applications Be able to describe and predict the products of the oxidation and reduction of aldehydes and ketones. Be able to recognize hemiacetals and acetals, describe the conditions under which they are formed, and predict the products of hemiacetal and acetal formation and aceta ...
Document
... change in the receptor site. Not produced by the body. An organic molecule containing a carbon atom with a + charge. Intermediates in the electrophilic addition reactions of alkenes. A carbon atom with 4 different atoms or groups of atoms attached. A reaction in which two molecules join together and ...
... change in the receptor site. Not produced by the body. An organic molecule containing a carbon atom with a + charge. Intermediates in the electrophilic addition reactions of alkenes. A carbon atom with 4 different atoms or groups of atoms attached. A reaction in which two molecules join together and ...
Chem 231 Exam #3 Study Guide
... The exam will take place in Oly204 from 6-7pm on Monday, December 11th. The exam will be worth 50 pts and you will be given 1 hour. You will not be allowed to use any materials for the exam. The exam will cover materials from Chapters 6-7.7. The exam will consist of a mixture of multiple choice and ...
... The exam will take place in Oly204 from 6-7pm on Monday, December 11th. The exam will be worth 50 pts and you will be given 1 hour. You will not be allowed to use any materials for the exam. The exam will cover materials from Chapters 6-7.7. The exam will consist of a mixture of multiple choice and ...
Organic Synthesis
... organic chemist, we can be sure that we need one of the relatively small group of C-C bond forming reactions. Second, the product must contain an alcohol group. That may have survived from the starting material, or been produced along the way. One good tip is to try to find disconnections that simpl ...
... organic chemist, we can be sure that we need one of the relatively small group of C-C bond forming reactions. Second, the product must contain an alcohol group. That may have survived from the starting material, or been produced along the way. One good tip is to try to find disconnections that simpl ...
Research Field Physical Chemistry, Laser desorption Title Laser
... addition, circular dichroism in ion yield has promising potentials for chiral analysis. By combining CD (Circular Dichroism) with REMPI, Chiroptical properties of the desorbed chiral molecules are investigated. In this project, as a first step, the student will get familiar with gas phase spectrosco ...
... addition, circular dichroism in ion yield has promising potentials for chiral analysis. By combining CD (Circular Dichroism) with REMPI, Chiroptical properties of the desorbed chiral molecules are investigated. In this project, as a first step, the student will get familiar with gas phase spectrosco ...
Microsoft Word
... examined their use in organic synthesis. Guanidines can be used as catalysts in carbon-carbon bond forming reactions of malonates, 1,3-diketones and nitroalkanes. The objective of this study was to investigate the possibility of using enantiomerically pure guanidines as bases in the nitroaldol (Henr ...
... examined their use in organic synthesis. Guanidines can be used as catalysts in carbon-carbon bond forming reactions of malonates, 1,3-diketones and nitroalkanes. The objective of this study was to investigate the possibility of using enantiomerically pure guanidines as bases in the nitroaldol (Henr ...
CHAPTER 17: Carbonyl group (1)
... An alternative method is the PCC oxidation (CrO3, HCl, pyridine) that oxidizes primary and secondary alcohols only to the corresponding carbonyl groups (no overoxidation to acids). The PCC oxidation is performed in organic solvents, such as CH2Cl2. In the absense of H2O the primary aldehyde cannot b ...
... An alternative method is the PCC oxidation (CrO3, HCl, pyridine) that oxidizes primary and secondary alcohols only to the corresponding carbonyl groups (no overoxidation to acids). The PCC oxidation is performed in organic solvents, such as CH2Cl2. In the absense of H2O the primary aldehyde cannot b ...
Lesson 4 halogenoalkanes
... The nucleophilic O atom on the water can then attack the +ve carbon atom and form the alcohol. ...
... The nucleophilic O atom on the water can then attack the +ve carbon atom and form the alcohol. ...
8. Chemistry of cooking
... Which line in the table correctly compares the properties of vanillin and zingerone? ...
... Which line in the table correctly compares the properties of vanillin and zingerone? ...
Slides, Set 12
... differ in configuration at one chiral center (does not apply to the anomeric center; see below). ...
... differ in configuration at one chiral center (does not apply to the anomeric center; see below). ...
Introduction (HL)
... Enantiomers differ in only one aspect of their physical properties: they rotate the plane of plane-polarized light in opposite directions: - laevorotatory enantiomers counterclockwise (to the left) - dextrorotatory clockwise (to the right) ...
... Enantiomers differ in only one aspect of their physical properties: they rotate the plane of plane-polarized light in opposite directions: - laevorotatory enantiomers counterclockwise (to the left) - dextrorotatory clockwise (to the right) ...
Pre Ch15 HW
... 1. How carbon's atomic properties give rise to its ability to form four strong covalent bonds, multiple bonds, and chains, which results in the great structural diversity of organic compounds (§15.1) 2. How carbon's atomic properties give rise to its ability to bond to various heteroatoms, which cre ...
... 1. How carbon's atomic properties give rise to its ability to form four strong covalent bonds, multiple bonds, and chains, which results in the great structural diversity of organic compounds (§15.1) 2. How carbon's atomic properties give rise to its ability to bond to various heteroatoms, which cre ...
Protecting Groups Introduction to Carbonyl
... Protecting Groups Solving this problem requires a three-step strategy: [1] Convert the OH group into another functional group that does not interfere with the desired reaction. This new blocking group is called a protecting group, and the reaction that creates it is called “protection.” [2] Carry ou ...
... Protecting Groups Solving this problem requires a three-step strategy: [1] Convert the OH group into another functional group that does not interfere with the desired reaction. This new blocking group is called a protecting group, and the reaction that creates it is called “protection.” [2] Carry ou ...
Ethers, Sulfides, Epoxides - City University of New York
... Overall: H – Nu was added to carbonyl group double bond. Notice that the CO bond order was reduced from 2 to 1. The addition reduced the bond order. We will use this idea later. ...
... Overall: H – Nu was added to carbonyl group double bond. Notice that the CO bond order was reduced from 2 to 1. The addition reduced the bond order. We will use this idea later. ...
Quiz 3 – Aldehydes and Ketones 1 Which of the following reactions
... 7 You have two C6H10O ketones, I and II. Both are optically active, but I is racemized by treatment with base and II is not. Wolff-Kishner reduction of both ketones gives the same achiral hydrocarbon, formula C6H12. What reasonable structures may be assigned to I and II? A) I is 3-methyl-4-penten-2- ...
... 7 You have two C6H10O ketones, I and II. Both are optically active, but I is racemized by treatment with base and II is not. Wolff-Kishner reduction of both ketones gives the same achiral hydrocarbon, formula C6H12. What reasonable structures may be assigned to I and II? A) I is 3-methyl-4-penten-2- ...
Organometallic Chemistry
... • The use of enantiopure allylic boranes in reactions with achiral aldehydes results not only in high diastereoselection, but also in high enantioselection. • Pure (Z)- and (E)- crotyldiisopino campheylboranes can be prepared at low temperature from (Z)- or (E)- crotylpotassium and B-methoxydiisopin ...
... • The use of enantiopure allylic boranes in reactions with achiral aldehydes results not only in high diastereoselection, but also in high enantioselection. • Pure (Z)- and (E)- crotyldiisopino campheylboranes can be prepared at low temperature from (Z)- or (E)- crotylpotassium and B-methoxydiisopin ...
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.