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Bölüm 6

Alkil Halojenürlerin Nükleofilik Sübstitüsyon ve Eliminasyon Reaksiyonları

Alkil Halojenürler
Alkil Halojenürler
Structural Properties Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as ...
Nükleofilik Sübstitüsyon Reaksiyonları
Nükleofilik Sübstitüsyon Reaksiyonları
Historical perspective In 1896, the German chemist Paul Walden discovered that he could interconvert pure enantiomeric (+) and (-) malic acids through a ...
Nükleofiller
Nükleofiller
The word “nucleophile” has a Greek root and translates to nucleus-loving. Nucleophiles are either negatively charged or neutral species with a ...
Elektrofiller
Elektrofiller
This lesson explains the definition, classification, and characteristic features of an electrophile that are key features of nucleophilic substitution ...
Gruplardan Ayrılma
Gruplardan Ayrılma
The nature of leaving groups strongly influences the outcome of a nucleophilic substitution reaction. In general, in a nucleophilic substitution reaction, ...
Karbokatyonlar
Karbokatyonlar
Carbocations are one of the reaction intermediates formed during several nucleophilic substitutions or elimination reactions. A carbocation is an ...
S<sub>N2</sub>Reaksiyonu: Kinetik
SN2Reaksiyonu: Kinetik
Kinetic Studies and Significance In a chemical reaction, a relationship exists between the concentration of reactants and the rate at which the reaction ...
<sub>SN2</sub>Reaksiyonu: Mekanizma
SN2Reaksiyonu: Mekanizma
The kinetic studies of SN2 reactions suggest an essential feature of its mechanism: it is a single-step process without intermediates. Here, both the ...
S<sub>N</sub>2 Reaksiyonu: Geçiş Durumu
SN2 Reaksiyonu: Geçiş Durumu
An SN2 reaction of an alkyl halide is a single-step process in which bond formation between the nucleophile and the substrate and bond breaking between ...
S<sub>N</sub>2 Reaksiyonu: Stereokimya
SN2 Reaksiyonu: Stereokimya
In an SN2 reaction, the nucleophilic attack on the substrate and departure of the leaving group occurs simultaneously through a transition state. As the ...
S<sub>N</sub>1 Reaksiyonu: Kinetik
SN1 Reaksiyonu: Kinetik
In an SN2 reaction, the reaction rate depends on both the type of nucleophile and the substrate. A hindered tertiary alkyl halide is practically inert to ...
S<sub>N</sub>1 Reaksiyonu: Mekanizma
SN1 Reaksiyonu: Mekanizma
Kinetic studies of ionization of a tertiary halide in a protic solvent suggest that only the substrate participates in the rate-determining step (slow ...
S<sub>N</sub>1 Reaksiyonu: Stereokimya
SN1 Reaksiyonu: Stereokimya
This lesson provides an in-depth discussion of the stereochemical outcomes in an SN1 reaction. In the first step of an SN1 reaction, the bond between the ...
Ürünleri Tahmin Etme: S<sub>N</sub>1 ve S<sub>N</sub>2
Ürünleri Tahmin Etme: SN1 ve SN2
Nucleophilic substitution reactions of alkyl halides can proceed via an SN1 or an SN2 mechanism. While in SN2 reactions, the nucleophile attacks the ...
Eliminasyon Reaksiyonları
Eliminasyon Reaksiyonları
A nucleophile can react with an alkyl halide to give the substitution product by displacing the halogen. Or it can function as a base to give the ...
E2 Reaksiyonu: Kinetik ve Mekanizma
E2 Reaksiyonu: Kinetik ve Mekanizma
SN2 substitutions and E2 eliminations of alkyl halides proceed via a concerted pathway. While the nucleophile attacks the alpha carbon in SN2 reactions, ...
E2 Reaksiyonu: Stereokimya ve Enzimokimya
E2 Reaksiyonu: Stereokimya ve Enzimokimya
Elimination reactions of alkyl halides can yield one or more alkenes depending on the specific regiochemical and stereochemical considerations. While the ...
E1 Reaksiyonu: Kinetik ve Mekanizma
E1 Reaksiyonu: Kinetik ve Mekanizma
Here, in contrast to the E2 reaction mechanism, we delve into the aspects of the E1 reaction mechanism, which has two steps: rate-limiting loss of the ...
E1 Reaksiyonu: Stereokimya ve Enzimokimya
E1 Reaksiyonu: Stereokimya ve Enzimokimya
One of the critical aspects of the E1 reaction mechanism, as also observed in E2, is the regiochemistry, with multiple regioisomers obtained as products. ...
Ürünleri Tahmin Etme: İkame ve Eliminasyon
Ürünleri Tahmin Etme: İkame ve Eliminasyon
When a nucleophile and an alkyl halide react, nucleophilic substitution and β-elimination reactions compete to generate products. The following ...
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