How to prepare actelaldehyde from methyl magnessium.iodide

1.	How to prepare actelaldehyde from methyl magnessium.iodide
Answer» Answer: acetone is OBTAINED from grignard reagent by USING acetaldehyde. for example: 1st STEP: CH3_CO_H + CH3_Mg_Br → CH3_CHCH3_O_Mg_Br (in the presence of polar solvent) 2nd step: CH3_CHCH3_O_Mg_Br → CH3_CHOH_CH3 + HO_Mg_Br (in the presence of H+ / OH-) 3RD STEP: CH3_CHOH_CH3 + [O] → CH3_CO_CH3 + H2O (IN THE PRESENCE OF CU) But this process is very expensive and UNRELIABLE. therefore it is not used to produce acetone which makes waste of time metarial

Answer»

Answer:

acetone is OBTAINED from grignard reagent by USING acetaldehyde.

for example:

1st STEP:

CH3_CO_H + CH3_Mg_Br → CH3_CHCH3_O_Mg_Br (in the presence of polar solvent)

2nd step:

CH3_CHCH3_O_Mg_Br → CH3_CHOH_CH3 + HO_Mg_Br (in the presence of H+ / OH-)

3RD STEP:

CH3_CHOH_CH3 + [O] → CH3_CO_CH3 + H2O (IN THE PRESENCE OF CU)

But this process is very expensive and UNRELIABLE. therefore it is not used to produce acetone which makes waste of time metarial

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