Why EDG is a good LG?

[predent7]

I kind of know that weak base and EDG(Electron Withdrawing Group) are good LG(leaving group).

Anybody can explain how these two factors are an effective leaving group ? Thanks.

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[qkchen]

they both readily accept electrons so both electron-withdrawing group and weak base (strong Lewis acid, electron acceptor) make good leaving goods.

i tend to be brief in details

 

[UndergradGuy7]

http://forums.studentdoctor.net/showpost.php?p=9719618&postcount=5