'Electrophilic addition' presentation slideshows

7. Alkenes: Structure and Reactivity

7. Alkenes: Structure and Reactivity. Why this Chapter?. C-C double bonds are present in most organic and biological molecules To examine consequences of alkene stereoisomerism To focus on general alkene reaction: electrophilic addition.

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7. Alkenes: Structure and Reactivity

7. Alkenes: Structure and Reactivity. Why this Chapter?. C-C double bonds are present in most organic and biological molecules To examine consequences of alkene stereoisomerism To focus on general alkene reaction: electrophilic addition.

1.05k views • 77 slides

Reactions of Alkenes

Reactions of Alkenes. Addition is the most common reaction of alkenes. The ? bond breaks and two ? bonds form. There is a loss of an element of unsaturation. Reactions of Alkenes. Electrophilic additions HX compare to free radical addition of HBr acid-catalyzed hydration

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p. 251

p. 251. Alkenes & Alkynes. Prepapration of alkenes 1. Dehydrohalogenation 2. Dehydration. Alkenes & Alkynes. Reactions of alkenes & alkynes A. Electrophilic Additions Hydrohalogenation i. alkenes ii. alkynes 2. Halogenation i. alkenes ii. alkynes Halohydrins i. alkenes

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intro

Electrophilic reactions. The electrophilic step: leads to carbocation intermediate. thus, carbocation stability is key!. intro. electrophilic C-C bond-forming steps. 15.1. next, we can get nucleophilic addition:. 15.1. or, carbocation intermediate can be deprotonated:.

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THE CHEMISTRY OF ARENES A guide for A level students

THE CHEMISTRY OF ARENES A guide for A level students. ARENES. CONTENTS Prior knowledge Structure of benzene Thermodynamic stability Delocalisation Electrophilic substitution Nitration Chlorination Friedel-Crafts reactions Further substitution

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Characteristic Reactions of Alkenes

Characteristic Reactions of Alkenes. . Reaction Mechanism. A reaction mechanism describes how a reaction occurs. Which bonds are broken and which new ones are formed. The order in which bond-breaking and bond-forming steps take place. The role of the catalyst (if any is present).

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Benzene

Benzene. Part 1. Starter: name the functional group. 1. 2. 3. 4. 5. Learning outcomes. Define arene and aromatic Name aromatic compounds Describe the structure of benzene Review the evidence for this structure Show how electrophilic substitutions occurs with different electrophiles.

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Chapter 5 Aromatic Compounds

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6. Alkenes: Structure and Reactivity

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Electrophilic addition to alkynes

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Alkene: Structure and Reactivity

Alkene: Structure and Reactivity. Chapter 6. Alkenes. An alkene (also called an olefin ) is a hydrocarbon with a carbon-carbon double bond. Alkenes are present in most organic and biological molecules. Examples of Alkenes. Testosterone. b -Carotene. Calculating Degrees of Unsaturation.

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Electron flow during the electrophilic addition mechanism

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ALKYnes sem 1: 2011/2012

ALKYnes sem 1: 2011/2012. Khadijah Hanim bt Abdul Rahman School of Bioprocess Engineering, UniMAP Week 5: 13/10/2011 khadijahhanim@unimap.edu.my. Learning outcomes. Structure, nomenclature and naming alkynes DEFINE and ILLUSTRATE the principle in naming alkynes on few examples

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Lingo

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CHEMISTRY 2600

CHEMISTRY 2600. Topic #3: Electrophilic Addition Reactions of Alkenes and Alkynes Spring 2008 Dr. Susan Lait. Electrophilic Addition Reactions of Alkenes (HX). When we looked at the mechanism for an elimination reaction via E1 mechanism, we saw that every step was reversible:.

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Booklet to help with unit 28: M2, D1 and D2

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Organic chemistry

Faculty of Allied Medical Sciences. Organic chemistry. ( MGOC-101). Alkenes. Supervision: Prof.Dr.Shehata El-Sewedy Dr. Fatma Ahmed. Outcomes. By the end of this lecture, the students will be able to. 1-Recognize formula of alkenes 2-Known nomenclature of alkenes

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Your Topic

Your Topic. Topic 1: 200. Question: These are the three groups we are doing our project on Answer What are alkenes, alkynes, and halides?. Back. Topic 1: 400. Question: Classify and name this structure: Answer (2 methyl, 3,6 diethyl, 1,4 heptadiene ). Back. Topic 1: 600. Question:

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Electrophilic addition.

Electrophilic addition. Ethene and bromine liquid at room temperature. H. H. C. C. H. Electrophile. H. Polarised. Br ? +. Br ? -. Carbocation. H. H. H. H. C. C. C. C. +. H. H. H. H. Br ? +. Br ? +. Br ? -. Br ? -. __. Curly arrows. H. H. H. H. C. H. H. C. C.

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