IMG_0001_NEW_0034

IMG_0001_NEW_0034 - otTr2l, which describes the reacrion as...

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/ J -T Let's consider two possibilities: 1. Bond between carbon and leaving group breaks during the reaction (follow the electrons !) r,tavc(;---l f7 - rltrr-Lr- t XO rF 6rcl ,Ar,L this type of bond cleavage is known as heterolytic cleavage, which means the leaving group takes both electrons that were in the bond that breaks. this type of reaction is known as a substitution reaction. In effect, the nucleophile has replaced, or substituted for, the leaving group. the nucleophile attacks the partially positive carbon and as a new bond forms between the nucleophile and electrophilic carbon the C-X bond breaks - all in one step ! This reocrion is known
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Unformatted text preview: otTr2l, which describes the reacrion as a $ucl eophi I ic Sub s titution that is b imo I e cul ar (or ry{IgZJlgklfll-e _s_i ry, the kev steot 2. Bond between carbon and leaving group breaks prior to the attack of the nucleophile. This type of nucleophilic substitution involves two steps: 1) formation of a cation and 2) attack of the nucleophile on the cation. The formation of the cation is the_ralg_deferorning steB and only one molecule is i+volv,ed in this step (the reaction is unimolecular). consequently the reaction is termediful.l -z+^ I 17, <[.,r \ '1k- a :trrr_ I .-+*kl'mn" ?T - Ya #' -ru'" f,'$/ aw*r\ e#r* t...
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