PDF4PRO ⚡AMP

Modern search engine that looking for books and documents around the web

Example: barber

Chapter 19: Benzene and Aromatic Substitution Reactions

Chapter 19: Benzene and Aromatic Substitution Reactions [Sections: , ; ]Nomenclature of Substituted Benzenesi. Monosubstituted BenzenesClCH2CH3NO2ii. Disubstituted BenzenesXXXYYYCH3 ClNO2iii. Polysubstituted Benzenes with more than 2 substituents, locant values MUST be used Minimize value of locants Name alphabeticallyCH2CH3 BrCliv. IUPAC Accepted Common NamesOHCH3NH2 OHOOHCH3 Brv. Benzene ring as a substituent is a "phenyl" groupPhCl with 2 substituents, either the ortho, meta, para-terminology OR locant values may be usedProblems: 1 if a continuous chain attached to a Benzene ring exceeds 6 carbons, the Benzene ring becomes a substituent off of the parent alkyl chainSubstitution versus Addition ReactionsBr2 BrBrBr2 FeBr3Br Substitution Reactions are favored by Aromatic compounds since aromaticity is retained addition Reactions (typical of alkenes) would result in loss of aromaticityBrBrFeBr3 BrBrFeBr3 HHHHHHFeFeBr3 HHHHHHBrHHHHHHBrBrHHHHHHHHHHHBrHHHHHHBr arenium ion (or sigma complex) intermediate is formed resonance stabilization means it has a reasonable activation barrierfor formation since aromaticity is temporarily lostarenium ion(sigma complex)Mechanism for Electrophilic Aromatic Substitution Process the net result is Substitution on the aromati

Chapter 19: Benzene and Aromatic Substitution Reactions [Sections: 18.2, 18.6; 19.1-19.12] Nomenclature of Substituted Benzenes i. Monosubstituted Benzenes Cl CH 2CH3 NO ii. Disubstituted Benzenes X Y Y Y CH3 Cl NO2 iii. Polysubstituted Benzenes • with more than 2 substituents, locant values MUST be used • Minimize value of locants • Name ...

Fullscreen Download

Tags:

  Aromatic, Reactions, Benzene, Substitution, Benzene and aromatic substitution reactions

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Spam in document Broken preview Other abuse

Transcription of Chapter 19: Benzene and Aromatic Substitution Reactions

Related documents

1) Stability of Carbocations - Rutgers University

crab.rutgers.edu

6) Acid catalysed Reactions of Carbonyl Compounds a) Hydrolysis of Carboxylic acid derivatives Acidic hydrolysis of all carboxylic derivatives (esters, amides, acid chlorides) yields the corresponding carboxylic acid. The same 5 steps occur in all these processes: i. protonation of the carbonyl oxygen (increases electrophilicity of the carbonyl ...

  Stability, Acid, Reactions, Derivatives, Carboxylic, Carboxylic acids, Carbocation, Stability of carbocations, Of carboxylic acid derivatives, Carboxylic derivatives

OXIDATION AND REDUCTION IN ORGANIC CHEMISTRY

personal.utdallas.edu

aldehydes and their hydrated forms, and for carboxylic acids and their derivatives. However, most references to oxidation and reduction reactions in organic chemistry textbooks involve the functional groups presented in the chart above. C H H H OH C H H H O C H H H alcohol ether C OH H OH H aldehyde hydrate H C H O aldehyde

  Reactions, Derivatives, Carboxylic

Professor J. Stephen Clark

www.chem.gla.ac.uk

Pyridine derivatives • Structure and reactivity of oxy-pyridines, alkyl pyridines, pyridinium salts, and pyridine N-oxides ... • Electrophilic substitution reactions of pyrroles, ... carboxylic …

  Clark, Reactions, Professors, Derivatives, Carboxylic, Stephen, Professor j, Stephen clark

有机硅烷综述 - thermo.com.cn

www.thermo.com.cn

acids, carboxylic acids, phenols, ketones. Most easily cleaved of all silyl protecting groups in acid and base. Chlorotrimethylsilane, 1M solution in THF 38161 Chlorotrimethylsilane, 1M solution in DCM 38160 Et 3 Si (TES) Chlorotriethylsilane, 1M solution in THF 43325 Used for the protection of alcohols. TES ethers can be selectively

  Acid, Carboxylic

Ch 06 Amines and Amides - Angelo State University

www.angelo.edu

Acetic acid 60.0 g/mol 118°C 1-propanol 60.1 g/mol 97°C propyl amine 59.1 g/mol 48°C ethylmethylamine 59.1 g/mol 36°C trimethylamine 59.1 g/mol 2.9°C butane 58.1 g/mol -0.5°C Boiling Point: Carboxylic acid Alcohols 1°/2° Amines 3° Amines/Alkanes

  Media, States, University, Acid, Maine, Carboxylic, Carboxylic acids, Angelo, Angelo state university, Amines and amides

Organic Chemistry II / CHEM 252 Chapter 20 – Amines

alpha.chem.umb.edu

Reactions of Amines 36 • Phenol and aniline derivatives undergo coupling almost exclusively at the para position unless this position is blocked • Azo compounds are commonly used as dyes – The azo coupling results in compounds which are highly conjugated – The -SO 3-Na + group is added to the molecule for solubility and to

  Reactions, Derivatives

B.Sc. - FIRST YEAR

mjpru.ac.in

Naphthalene 80-82 0, Benzoic acid 121.5-122 0 Urea 132.5-133 0, Succinic acid 184.5-185 0 Cinnamic acid 132.5-133 0, Sallicylic acid 157.5-158 0 Acetanilide 113.5-114 0, m-Dinitrobenzene 90 0 p-Dichlorobenzene 52 0, Aspirin 135 0 Determination of boiling point : Ethanol 78 0, Cyclohexane 81.4 0, Toluene 110.6 0, Benzene 80 0 Mixed melting point ...

  First, Year, Acid, First year

Related search queries

1) Stability of Carbocations, Acid, Reactions, Of Carboxylic acid derivatives, Carboxylic derivatives, Carboxylic acid, Carboxylic, Derivatives, Professor J. Stephen Clark, Amines and Amides, Angelo State University