One-pot conversion of benzaldehyde to 1-phenyl-2-propanone

Dynyx

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To benzaldehyde (8.52 g, 0.08 mmol) and nitroethane (4.05 g, 0.054 mol) in acid
of acetic acid (20 mL) was added ammonium carbonate (0.48 g, 5 mmol) with effervescence. Yellow solution
was claimed for reflux for 1h. The reaction mixture was cooled in a water bath,
while powdered zinc (16.3 g, 0.25 mol) was slowly added (violent reaction).
The reaction mixture was refluxed for 1 h, cooled and poured into water (200 mL). It was a mixture
basified with sodium carbonate and extracted with dichloromethane (2 x 75 mL).
The product obtained was a red oil (6.32 g) which was distilled to give l-phenyl-2-
propanone (3.17 g, 44%)
 

Xiao hua

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Is it bro
 

Xiao hua

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somebody can confirm this
 

flyhigh

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follow this process to end up with crap
 

HerrHaber

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This may be of some interest if true... I'm thinking applying it on substituted aldehydes on smaller batches.
 

yuiopjkl

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When mixing ammonium carbonate and acetic acid you will get "ammonium acetate" So the product you will get is P2NP

I don't think zinc will reduce P2NP to P2P.
I read somewhere that Zn\HCl would work but the yield was low
 
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