Chapter 6.1 Lecture Notes

Chapter 6.1 Lecture Notes - Chapter 6 - 1 Chapter 6. Ionic...

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Chapter 6 - 1 Chapter 6. Ionic Reactions - Nucleophilic Substitution and Elimination Reactions of Alkyl Halides General formula ---> Memorize!!! Nu + R X Nu R + X Type of reaction: Nucleophilic substitution Nu + R X Nu R + X Nucleophile Electrophile Leaving group
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Chapter 6 - 2 Nucleophilic substitution reactions to memorize Nucleophile Electrophile + H 3 C Cl H 3 C OH HO alcohol Product CH 3 CH 2 OCH 3 CH 3 O ether CH 3 CH 2 Br + CH 3 CH 2 CH 2 I I halide CH 3 CH 2 CH 2 Cl + CN nitrile R X + R CN R' R X + R' R alkyne R' O O R X + R' O O R ester
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3 Nucleophilic substitution: mechanism? - There are two mechanisms for nucleophilic substitution. - The same result to give Nu-R, but different mechanisms 1. Bimolecular nucleophilic substitution: S N 2 2. Unimolecular nucleophilic substitution: S N 1 Nu + R X Nu R + X two molecules involved R X R + X Nu Nu R rate determining step one molecule involved in r.d.s. Always remember there is competition between S
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Chapter 6.1 Lecture Notes - Chapter 6 - 1 Chapter 6. Ionic...

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