popi
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propanoyl chloride or ?
What is this called now as it has had many names in the past? Is this the same as Propionyl chloride 79-03-8?And if the same what would be the way
that it would be made? ',nowadays.tnks!
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ScienceSquirrel
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It is the same thing.
The best way to make it it to add thionyl chloride to propionic acid in a hood, lots of sulphur dioxide and hydrogen chloride are produced.
Then distill the product.
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chemrox
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Another way is to mix equivalents of propionic acid and benzoyl chloride (Brown was the author). You simply distill off the propionyl chloride. You
get a bunch of benzoic acid as the byproduct. You can recrystallize these from water. It's a very efficient conversion and you don't need to do it
in the hood.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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UnintentionalChaos
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Propionyl Chloride boils at 77C. Using thionyl chloride, which boils at 75C and produces lots of gas to carry off vapor from your product isn't going
to work.
You need a "heavy" chlorinating agent where you can distill your product off from the residue. PCl5, benozyl chloride, benzotrichloride,
triphenylphosphine dichloride, and others would work better.
[Edited on 12-14-12 by UnintentionalChaos]
Department of Redundancy Department - Now with paperwork!
'In organic synthesis, we call decomposition products "crap", however this is not a IUPAC approved nomenclature.' -Nicodem
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HOLYMOLYBDENUM
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Would a catalyst (such as stannic chloride) be required to do the reaction between propanoic acid and benzoyl chloride?
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