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Cool goIITian

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6 Jun 2008 18:50:54 IST

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How to Understand KOLBE'S REACTION ?

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How to Understand KOLBE'S REACTION ?

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Ashwini

Blazing goIITian

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6 Jun 2008 19:10:49 IST

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in Kolbe's reaction,

phenol reacts with NaOH to give sodium phenoxide which in presence of carbon dioxide and H+ gives salicylic acid.

here, CO2 acts as a weak electrophile.

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Blazing goIITian

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6 Jun 2008 19:41:36 IST

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see for remembering kolbe's reaction just revise this sentence

" phenoxide ion generated with phenol with sodium hydroxide is even more reactive than phenol towards electrophilic aromatic substitution. Hence, it undergoes electrophilic substitution with carbon dioxide, a weak electrophile. Ortho hydroxybenzoic acid is formed as the main reaction product.

Shivam Srivastava... Got A Sunshine, now its my turn to get ultimate Pride ... :)

Blazing goIITian

Joined: 1 Jun 2008

Posts: 1625

6 Jun 2008 19:42:14 IST

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pls rate me if u r satisfied by my answer!!!!!!!!!!!

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