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Mechanisms of organic reactions
Mechanisms of organic reactions

... Again: initiation (creation of radicals), propagation (radicals attack neutral molecules, producing more and more radicals), termination (radicals react with each other, forming a stable product; the chain reaction is terminated) E.g.: polymerization of ethylene using dibenzoyl peroxide as an initia ...
Carbonyls - wellswaysciences
Carbonyls - wellswaysciences

Exam 1
Exam 1

... Alcohols can be oxidized to produce other compounds, and can be produced by reduction. For the reactions shown below, show the structure for the expected product (if reaction does not occur, state: No Reaction) when treated with the indicated oxidizing or reducing agents. Ethanol + Chromic acid (CrO ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 5. Give the IUPAC names and the structures of the products formed by the reaction of 1-pentyne with one mole of HBr and a peroxide. 6. What is Markownikoff rule? Explain with an example. 7. Why is acetylene acidic? 8. What is Diels-Alder addition reaction? 9. Differentiate between enantiomers and di ...
Chemdraw B&W - Pennsylvania State University
Chemdraw B&W - Pennsylvania State University

... • Two equivalents of ROH in the presence of an acid catalyst add to C=O to yield acetals, R2C(OR)2 • These can be called ketals if derived from a ketone ...
Document
Document

... (Total 11 marks) ...
Types of Reactions in Organic Chemistry Chemistry
Types of Reactions in Organic Chemistry Chemistry

... hydrolysis of esters is called saponification. The naturally occurring ester glyceryl tristearate, found in animal fats, may be hydrolysed to form sodium stearate (soap) and the alcohol glycerol. An addition reaction is one in which two substances react together to form a single substance. The most ...
Level 3: Organics Part I
Level 3: Organics Part I

... aldehydes except the double bond is not at the end of a carbon chain Their names have ‘–one’ as a suffix e.g. propanone, butanone… The smaller ketones are the same as aldehydes. They are liquids because of their polar bonding The smaller molecules (below hexanone) are soluble in water Ketones are go ...
Worksheet 1 - Oregon State chemistry
Worksheet 1 - Oregon State chemistry

... The carboxylic acid group on the right is still in tact and will react with an alcohol group from another HOCH2OH molecule. The alcohol group on the left is still in tact and will react with a carboxylic acid group from another HOOCCH2CH2CH2CH2COOH molecule. The polymer may be represented as: O O ...
Chemistry 3719L – Week 9 Reduction of Benzil with Sodium
Chemistry 3719L – Week 9 Reduction of Benzil with Sodium



... 82-page brochure, “The Catalyst Technical Handbook”, which covers the use of catalysts for chemical reactions important in industrial synthesis. The handbook recommends platinum group metal homogeneous, heterogeneous and FibreCatm anchored homogeneous catalysts for each reaction type discussed.This ...
Hein and Arena
Hein and Arena

Combinatorial chemistry
Combinatorial chemistry

... lifting up the mesh bag. They are washed to remove any unreacted acyl chloride ...
effective: september 2003 curriculum guidelines
effective: september 2003 curriculum guidelines

Aldehydes and Ketones
Aldehydes and Ketones

... 2. Cleavage of Carbon–Carbon double bond by Ozone: Oxidative cleavage of an alkene breaks both the σ and π bonds of the double bond to form two carbonyl groups. Depending on the number of R groups bonded to the double bond, oxidative cleavage yields either ketones or aldehydes. ...
Organic Chemistry Fifth Edition
Organic Chemistry Fifth Edition

... • Identify the product isolated when cyclopentanone reacts with dimethyl amine. ...
Hydrocarbons - OurTeachersPage.com
Hydrocarbons - OurTeachersPage.com

Regents Unit 15: Hydrocarbon Derivatives
Regents Unit 15: Hydrocarbon Derivatives

Topic 10 IB Chemistry Definitions
Topic 10 IB Chemistry Definitions

... A reaction in which the reactant is added across a C=C bond, converting it to a C-C bond. Addition reactions with water requires an H2SO4 catalyst. Addition reactions with hydrogen use Ni as catalyst. ...
Nugget
Nugget

aldehydes and ketones
aldehydes and ketones

... • Using the root alkane name, drop the –e ending and change to –one. • Number the longest carbon chain so the C=O group has the lowest number. • Name and number other substituents as before. • Examples: ...
CHMY_271_practice_exam_3
CHMY_271_practice_exam_3

... Part D. Suggest an appropriate solvent for the reaction in part A, and describe in as much detail as possible the role played by the solvent in a substitution reaction and WHY you chose the solvent you ...
Lesson 6
Lesson 6

... 4. The substances present before a reaction are called the ________________. 5. The substances present after a reaction are called the _________________. 6. List the three main indicators that a chemical reaction has occurred. 7. Are there any other indicators of a chemical reaction? 8. What evidenc ...
L3 - Alcohol and Phenol Reactions
L3 - Alcohol and Phenol Reactions

... oxidized by removing two hydrogen atoms from the same molecule, one from a hydroxyl group and the second from the carbon of the hydroxyl group, resulting in the formation of a double bond between the carbon and remaining oxygen ...
Organic Chemistry II / CHEM 252 Chapter 16
Organic Chemistry II / CHEM 252 Chapter 16

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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.
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