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Capítulo 14

Derivados de Ácidos Carboxílicos

Derivados de Ácido Carboxílico: Visão Geral
Derivados de Ácido Carboxílico: Visão Geral
Carboxylic acid derivatives are formed by replacing the hydroxyl group of carboxylic acids with a different functional group. The most common carboxylic ...
Nomenclatura de Derivados de Ácidos Carboxílicos: Halogenetos de Ácido, Ésteres e Anidridos de Ácido
Nomenclatura de Derivados de Ácidos Carboxílicos: Halogenetos de Ácido, Ésteres e Anidridos de Ácido
Naming Acid Halides The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to ...
Nomenclatura de Derivados de Ácidos Carboxílicos: Amidas e Nitrilas
Nomenclatura de Derivados de Ácidos Carboxílicos: Amidas e Nitrilas
Naming Amides The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and ...
Estruturas de Derivados de Ácido Carboxílico
Estruturas de Derivados de Ácido Carboxílico
Structure of Carboxylic Acid Derivatives Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or ...
Propriedades Físicas de Derivados de Ácido Carboxílico
Propriedades Físicas de Derivados de Ácido Carboxílico
Intermolecular forces dictate several physical properties such as boiling points, melting points, solubilities, and so forth. They are classified into ...
Acidez e Basicidade de Derivados de Ácidos Carboxílicos
Acidez e Basicidade de Derivados de Ácidos Carboxílicos
Carboxylic acids are the strongest among organic acids, as they readily lose the hydroxyl proton to form a resonance-stabilized carboxylate ion. In ...
Espectroscopia de Derivados de Ácido Carboxílico
Espectroscopia de Derivados de Ácido Carboxílico
Infrared spectroscopy is primarily used to determine the types of bonds and functional groups. In carboxylic acid derivatives, a typical carbonyl bond ...
Reatividade Relativa de Derivados de Ácido Carboxílico
Reatividade Relativa de Derivados de Ácido Carboxílico
Carboxylic acid derivatives such as acid halides, anhydrides, esters, and amides undergo nucleophilic acyl substitution reactions with varying degrees of ...
Substituição Nucleofílica Acílica de Derivados de Ácidos Carboxílicos
Substituição Nucleofílica Acílica de Derivados de Ácidos Carboxílicos
Nucleophilic acyl substitution is an important class of substitution reactions involving a nucleophile and an acyl compound, such as carboxylic acids and ...
Haletos de Ácidos em Ácidos Carboxílicos: Hidrólise
Haletos de Ácidos em Ácidos Carboxílicos: Hidrólise
Hydrolysis of acid halides is a nucleophilic acyl substitution reaction in which acid halides react with water to give carboxylic acids. The reaction ...
Haletos de Ácido a Ésteres: Alcoólise
Haletos de Ácido a Ésteres: Alcoólise
Alcoholysis is a nucleophilic acyl substitution reaction in which an alcohol functions as a nucleophile. Acid halides react with alcohol to produce ...
Haletos de Ácido a Amidas: Aminólise
Haletos de Ácido a Amidas: Aminólise
Aminolysis is a nucleophilic acyl substitution reaction, where ammonia or amines act as nucleophiles to give the substitution product. Acid halides react ...
Haletos de Ácido a Álcoois: Redução de LiAlH4
Haletos de Ácido a Álcoois: Redução de LiAlH4
Acid halides are reduced to alcohols in the presence of a strong reducing agent like lithium aluminum hydride. The mechanism proceeds in three steps. ...
Haletos de Ácido para Álcoois: Reação de Grignard
Haletos de Ácido para Álcoois: Reação de Grignard
Organomagnesium halides, commonly known as Grignard reagents, convert acid halides to tertiary alcohols. The reaction requires two equivalents of the ...
Haletos de Ácido a Cetonas: Gilman Reagent
Haletos de Ácido a Cetonas: Gilman Reagent
Lithium dialkyl cuprate, also known as Gilman reagents, selectively reduces acid halides to ketones. The acid chloride is treated with Gilman reagent at ...
Preparação de Anidridos Ácidos
Preparação de Anidridos Ácidos
One of the methods for preparing symmetrical or unsymmetrical acid anhydrides involves the treatment of acid chlorides with the sodium salt of carboxylic ...
Reações de Anidridos de Ácido
Reações de Anidridos de Ácido
The reactions of acid anhydrides are analogous to the reactions of acid chlorides and proceed via a nucleophilic acyl substitution. They only differ in ...
Ésteres a Ácidos Carboxílicos: Saponificação
Ésteres a Ácidos Carboxílicos: Saponificação
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution ...
Ésteres a Ácidos Carboxílicos: Hidrólise Catalisada por Ácido
Ésteres a Ácidos Carboxílicos: Hidrólise Catalisada por Ácido
Hydrolysis of esters under acidic conditions proceeds through a nucleophilic acyl substitution. In the presence of excess water, the reaction proceeds in ...
Ésteres a Álcoois: Reduções de Hidreto
Ésteres a Álcoois: Reduções de Hidreto
Esters are reduced to primary alcohols when treated with a strong reducing agent like lithium aluminum hydride. The reaction requires two equivalents of ...
Ésteres a Álcoois: Reação de Grignard
Ésteres a Álcoois: Reação de Grignard
The reaction of an ester with a Grignard reagent, followed by hydrolysis of the magnesium alkoxide salt in aqueous acid, yields a tertiary alcohol. In the ...
Preparação de Amidas
Preparação de Amidas
Amides are synthesized by treating carboxylic acids with amines in the presence of dehydrating agents like dicyclohexylcarbodiimide (DCC). The ...
Amidas a Ácidos Carboxílicos: Hidrólise
Amidas a Ácidos Carboxílicos: Hidrólise
Amides can undergo either acid-catalyzed hydrolysis or base-promoted hydrolysis through a typical nucleophilic acyl substitution. Each hydrolysis requires ...
Amidas a Aminas: Redução de LiAlH4
Amidas a Aminas: Redução de LiAlH4
Amide reduction with strong reducing agents like lithium aluminum hydride proceeds through a nucleophilic acyl substitution to form amines. Primary, ...
Preparação de Nitrilas
Preparação de Nitrilas
One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or ...
Nitrilas a Ácidos Carboxílicos: Hidrólise
Nitrilas a Ácidos Carboxílicos: Hidrólise
Nitriles undergo acid-catalyzed hydrolysis or base-catalyzed hydrolysis to form a carboxylic acid. These reactions proceed via an amide intermediate. The ...
Nitrilas a Cetonas: Reação de Grignard
Nitrilas a Cetonas: Reação de Grignard
Organomagnesium halides, commonly known as Grignard reagents, convert nitriles to ketones and proceed through a nucleophilic acyl substitution. Nitriles ...
Nitrilas a Aminas: Redução de LiAlH4
Nitrilas a Aminas: Redução de LiAlH4
Nitriles are reduced to amines in the presence of strong reducing agents like lithium aluminum hydride through a typical nucleophilic acyl substitution. ...
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