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Chapter 12

Aldehydes and Ketones

Struktury aldehydów i ketonów
Struktury aldehydów i ketonów
Vanillin—a flavoring agent in vanilla, cinnamaldehyde—a molecule responsible for the distinct smell of cinnamon, and acetone—a ...
Nomenklatura aldehydów IUPAC
Nomenklatura aldehydów IUPAC
Aldehydes are named based on the systematic nomenclature rules set by the IUPAC. For acyclic aldehydes, the longest carbon chain containing the aldehydic ...
Nomenklatura ketonów IUPAC
Nomenklatura ketonów IUPAC
Like aldehydes, ketones are named using IUPAC rules; in this case, by replacing “e” in the name of the longest hydrocarbon chain with ...
Nazwy zwyczajowe aldehydów i ketonów
Nazwy zwyczajowe aldehydów i ketonów
Some common aldehydes and ketones are popularly known by their common names used historically and predate the IUPAC nomenclature.    Common ...
Spektroskopia aldehydów i ketonów w podczerwieni i UV-VIS
Spektroskopia aldehydów i ketonów w podczerwieni i UV-VIS
Infrared spectroscopy, also known as vibrational spectroscopy, is mainly used to determine the types of bonds and functional groups in molecules. In ...
Spektroskopia NMR i spektrometria mas aldehydów i ketonów
Spektroskopia NMR i spektrometria mas aldehydów i ketonów
In aldehydes, the hydrogen atom connected to the carbonyl carbon helps distinguish aldehydes from other carbonyl compounds using ¹H NMR spectroscopy. ...
Otrzymywanie aldehydów i ketonów z alkoholi, alkenów i alkinów
Otrzymywanie aldehydów i ketonów z alkoholi, alkenów i alkinów
Aldehydes and ketones are prepared from alcohols, alkenes, and alkynes via different reaction pathways. Alcohols are the most commonly used substrates for ...
Otrzymywanie aldehydów i ketonów z nitryli i kwasów karboksylowych
Otrzymywanie aldehydów i ketonów z nitryli i kwasów karboksylowych
Although it is possible to reduce a carboxylic acid to an aldehyde, strong reducing agents, like lithium aluminum hydride (LAH), prohibit a controlled ...
Otrzymywanie aldehydów i ketonów z pochodnych kwasów karboksylowych
Otrzymywanie aldehydów i ketonów z pochodnych kwasów karboksylowych
Aldehydes are more reactive than carboxylic acids and hence, can get over-reduced to alcohol in the presence of strong reducing agents. Therefore, ...
Dodatek nukleofilowy do grupy karbonylowej: ogólny mechanizm
Dodatek nukleofilowy do grupy karbonylowej: ogólny mechanizm
The carbonyl carbon in an aldehyde or ketone is the site of a nucleophilic attack due to its electron-deficient nature. Depending on the strength of the ...
Aldehydy i ketony z wodą: tworzenie hydratów
Aldehydy i ketony z wodą: tworzenie hydratów
An oxygen-based nucleophile, like water, can undergo addition reactions with aldehydes and ketones. The reaction leads to the formation of hydrates, also ...
Aldehydy i ketony z alkoholami: tworzenie półacetalu
Aldehydy i ketony z alkoholami: tworzenie półacetalu
Similar to water, alcohols can add to the carbonyl carbon of the aldehydes and ketones. The addition of one molecule of alcohol to the carbonyl compound ...
Grupy ochronne dla aldehydów i ketonów: Wprowadzenie
Grupy ochronne dla aldehydów i ketonów: Wprowadzenie
Protecting groups are compounds that can bind to a specific functional group in the presence of other functional groups to protect them from undesired ...
Acetale i tioacetale jako grupy ochronne dla aldehydów i ketonów
Acetale i tioacetale jako grupy ochronne dla aldehydów i ketonów
Acetals are formed by reacting two equivalents of alcohol with carbonyl compounds like aldehydes or ketones. Acetals are unaffected by bases, ...
Aldehydy i ketony z HCN: przegląd tworzenia cyjanohydryny
Aldehydy i ketony z HCN: przegląd tworzenia cyjanohydryny
Cyanohydrins are compounds that contain –CN and –OH groups on the same carbon atom. They are formed by the nucleophilic addition of the ...
Aldehydy i ketony z HCN: mechanizm tworzenia cyjanohydryny
Aldehydy i ketony z HCN: mechanizm tworzenia cyjanohydryny
Cyanohydrins are formed when cyanide nucleophiles and carbonyl compounds like aldehydes and ketones react. A strong base, the cyanide ion, catalyzes ...
Aldehydy i ketony do alkenów: przegląd reakcji Wittiga
Aldehydy i ketony do alkenów: przegląd reakcji Wittiga
The Wittig reaction is the conversion of carbonyl compounds—aldehydes and ketones—to alkenes using phosphorus ylides, or the Wittig reagent. ...
Aldehydy i ketony do alkenów: mechanizm reakcji Wittiga
Aldehydy i ketony do alkenów: mechanizm reakcji Wittiga
The Wittig reaction, which converts aldehydes or ketones to alkenes using phosphorus ylides, proceeds through a nucleophilic addition‒elimination ...
Aldehydy i ketony z aminami: przegląd tworzenia imin i enaminy
Aldehydy i ketony z aminami: przegląd tworzenia imin i enaminy
Primary amines react with carbonyl compounds—aldehydes and ketones—to generate imines. Imines consist of a C=N double bond and are named ...
Aldehydy i ketony z aminami: mechanizm tworzenia imin
Aldehydy i ketony z aminami: mechanizm tworzenia imin
Imine formation involves the addition of carbonyl compounds to a primary amine. It begins with the generation of carbinolamine through a series of steps ...
Aldehydy i ketony z aminami: mechanizm tworzenia enaminy
Aldehydy i ketony z aminami: mechanizm tworzenia enaminy
Enamine formation involves the addition of carbonyl compounds to a secondary amine through a series of reactions. The mechanism begins with the generation ...
Aldehydy i ketony do alkanów: redukcja Wolffa-Kishnera
Aldehydy i ketony do alkanów: redukcja Wolffa-Kishnera
Wolff–Kishner reduction involves converting aldehydes and ketones to alkanes using hydrazine and a base. The reaction converts a carbonyl group to a ...
Utlenianie aldehydów i ketonów do kwasów karboksylowych
Utlenianie aldehydów i ketonów do kwasów karboksylowych
Oxidation of aldehydes and ketones results in the formation of carboxylic acids. Aldehydes, bearing hydrogen next to the carbonyl group, are easily ...
Reakcje aldehydów i ketonów: utlenianie Baeyera-Villigera
Reakcje aldehydów i ketonów: utlenianie Baeyera-Villigera
Baeyer–Villiger oxidation converts aldehydes to carboxylic acids and ketones to esters. The reaction uses peroxy acids or peracids and is often ...
Tautomeria keto-enol: mechanizm
Tautomeria keto-enol: mechanizm
The keto and enol forms are known as tautomers and they constantly interconvert (or tautomerize) between the two forms under acid or base catalyzed ...
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