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# need help on reaction equations and conditions watch

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1. how would you go from ch3ch2ch2mgi ------> ch3ch2ch2cooh
what are the conditions?

and

ch3ch2mgbr ---> ch3ch2chohch3
what is the reaciton equation and condition
2. would the condtions be to have a dry ether
3. Right so the first one is a Grignard Reagent to butanoic acid, and the second is another Grignard reagent to an alcohol with another carbon atom. Let me think about it.

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React CH3CH2CH2MgI with carbon dioxide to get CH3CH2CH2COOMgI

Thats bubbled through ethoxyethane (dry ether yeah)

Then hydrolyse it in the presence of dilute sulphuric acid to get:

CH3CH2CH2COOMgI + H2O ===> CH3CH2CH2COOH + Mg(OH)I

--------------

Then for the second one, react CH3CH2MgBr with ethanal (CH3COH) to get what you want.

Conditions: Let the Grignard reagent add across the C=O double bond, and then add dilute acid to hydrolyse it (giving the secondary alcohol)
4. (Original post by olliemccowan)
Right so the first one is a Grignard Reagent to butanoic acid, and the second is another Grignard reagent to an alcohol with another carbon atom. Let me think about it.

--------------

React CH3CH2CH2MgI with carbon dioxide to get CH3CH2CH2COOMgI

Thats bubbled through ethoxyethane (dry ether yeah)

Then hydrolyse it in the presence of dilute sulphuric acid to get:

CH3CH2CH2COOMgI + H2O ===> CH3CH2CH2COOH + Mg(OH)I

--------------

Then for the second one, react CH3CH2MgBr with ethanal (CH3COH) to get what you want.

Conditions: Let the Grignard reagent add across the C=O double bond, and then add dilute acid to hydrolyse it (giving the secondary alcohol)
thanks soo much for all your help
5. (Original post by lil_kk)
thanks soo much for all your help
No worries, there's gotta be some use for my A-level in Chemistry lol.

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