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Topic: Identify organic mechanism  (Read 2734 times)

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Offline AntiQuark

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Identify organic mechanism
« on: February 01, 2012, 03:37:16 PM »
Was looking through a British Olympiad Past paper and noticed the following mechanism.
I would like to learn the mechanism, but don't have the faintest idea what it is and therefore find it very hard to search for information on the internet.
(My chemistry teacher has banned students from asking questions about the olympiad  >:( )


So, can somebody please identify the mechanism circled in so I can google and learn more information?

From the markscheme:




Another question I have is about the CO2H group underlined in the markscheme.
Is CO2H supposed to be COOH, a carboxylic acid group?

Offline Borek

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Re: Identify organic mechanism
« Reply #1 on: February 01, 2012, 03:44:36 PM »
Your images don't show, at least for me.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline UG

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Re: Identify organic mechanism
« Reply #2 on: February 01, 2012, 04:00:45 PM »
I can't see the images either but I went to the link

So, can somebody please identify the mechanism circled in so I can google and learn more information?
Looks like:
1) Form Grignard reagent
2) Carboxylation of Grignard reagent
3) Protonation to give carboxylic acid

Is CO2H supposed to be COOH, a carboxylic acid group?
Yes it is.

Offline AntiQuark

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Re: Identify organic mechanism
« Reply #3 on: February 01, 2012, 04:12:53 PM »

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