'Cch 3' diaporamas de présentation

Chapter 12 Electrophilic and Nucleophilic Aromatic Substitution

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Dr. Wolf's CHM 201 & 202

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Alcohols , enols and phenols

Alcohols , enols and phenols. Classification. Alcohols and alkyl halides are classified as primary secondary tertiary according to their "degree of substitution."

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Chapter 18 Enols and Enolates

Chapter 18 Enols and Enolates. 18.1 The a -Carbon Atom and its Hydrogens. O. CH 3 CH 2 CH 2 CH. Terminology. The reference atom is the carbonyl carbon. Other carbons are designated a , b , g , etc. on the basis of their position with respect to the carbonyl carbon.

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AROMATIC

AROMATIC. BENZENE. Benzene . This aromatic hydrocarbon was first discovered in 1825 but its structure was not generally agreed upon until 1946. Facts about benzene: Formula = C 6 H 6 Isomer number: one monosubstituted isomer C 6 H 5 Y known

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22.12 Reactions of Amines: A Review and a Preview

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12.15 Multiple Substituent Effects

12.15 Multiple Substituent Effects. O. CH 3. O. O. CH 3 COCCH 3. CH 3. The Simplest Case. all possible EAS sites may be equivalent. CH 3. CCH 3. AlCl 3. +. CH 3. 99%. CH 3. Br 2. Fe. NO 2. Another Straightforward Case. CH 3. Br.

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Enols

Enols. Keto-Enol Tautomerism?. Tautomerism v . - an interconversion between two structures that differ by the placement of an atom or group; in this case, an ? hydrogen atom ( H ). The ? -Carbon Atom and its Hydrogens. O. H. O. g. a. CH 3 CH 2 CH 2 CH. b. R. H. H. Terminology.

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The Simplest Case

NHCH 3. NHCH 3. Br. Cl. Cl. The Simplest Case. all possible EAS sites may be equivalent. strongly activating. Br 2. acetic acid. 87%. CH 3. HNO 3. H 2 SO 4. C(CH 3 ) 3. When activating effects are similar. CH 3. substitution occurs ortho to the smaller group. NO 2. C(CH 3 ) 3.

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Chapter 12

Chapter 12. Alkenes and Alkynes Geometric Isomers of Alkenes. Saturated and Unsaturated Compounds. Saturated compounds (alkanes) have the maximum number of hydrogen atoms attached to each carbon atom Unsaturated compounds have fewer hydrogen atoms attached to the carbon chain than alkanes

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