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All 4 posts Subject: Re: Propiophenone OTC Route Please login to post Down

grellobanans
(Hive Bee)
06-10-04 00:29
No 512508
      Re: Propiophenone OTC Route

from dry distillation of calcium benzoate + calcium propionate, made from CaOH and benzoic acid and propionic acid

Swim was only able to find one mention of this, and no experimental data. It is very appealing (benzoic and propionic acid are ready to go, CaOH is just there, and yields don't need to be high for swim). So how would the experimental for this go, just go by the needed molar amounts, or does something need to be in excess? What about solvent choice (if any)? and for dry distillation, what kind of temps are needed (swim can only go to 200C)?

For step to alpha-bromopropiophenone, can propiophenone be brominated in-situ via bromine salt in good yield?

josef_k
(Hive Bee)
06-11-04 13:50
No 512788
      Take a look at Journal of organic chemistry...

Take a look at Journal of organic chemistry 28: 879
They react the iron salts of benzoic acid and propanoic acid to get propiophenone in 72% yield when you use 4:1 molar ratio. Perhaps even more OTC than using calcium?

ning
(acetaminophanatic)
06-11-04 15:12
No 512795
User Picture       Perhaps

this would bee of interest to those currently using lead to produce P2P from phenylacetic acid and acetic acid...

_{"...Now that's as close as a chemical, a drug, can get to being a good woman"}

lugh
(Moderator)
11-07-04 01:37
No 540095
      Propiophenone from iron salts
(Rated as: good read)

The articles on synthesizing ketones from iron salts; particularly propiophenone, JOC 27 854-7 (1962) and 28 879-81 (1963):

cool

Chemistry is our Covalent Bond

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	All 4 posts		Subject: Re: Propiophenone OTC Route		Please login to post		Down


		grellobanans (Hive Bee) 06-10-04 00:29 No 512508				Re: Propiophenone OTC Route
						from dry distillation of calcium benzoate + calcium propionate, made from CaOH and benzoic acid and propionic acid Swim was only able to find one mention of this, and no experimental data. It is very appealing (benzoic and propionic acid are ready to go, CaOH is just there, and yields don't need to be high for swim). So how would the experimental for this go, just go by the needed molar amounts, or does something need to be in excess? What about solvent choice (if any)? and for dry distillation, what kind of temps are needed (swim can only go to 200C)? For step to alpha-bromopropiophenone, can propiophenone be brominated in-situ via bromine salt in good yield?



		josef_k (Hive Bee) 06-11-04 13:50 No 512788				Take a look at Journal of organic chemistry...
						Take a look at Journal of organic chemistry 28: 879 They react the iron salts of benzoic acid and propanoic acid to get propiophenone in 72% yield when you use 4:1 molar ratio. Perhaps even more OTC than using calcium?



		ning (acetaminophanatic) 06-11-04 15:12 No 512795				Perhaps
						this would bee of interest to those currently using lead to produce P2P from phenylacetic acid and acetic acid... _{"...Now that's as close as a chemical, a drug, can get to being a good woman"}



		lugh (Moderator) 11-07-04 01:37 No 540095				Propiophenone from iron salts (Rated as: good read)
						The articles on synthesizing ketones from iron salts; particularly propiophenone, JOC 27 854-7 (1962) and 28 879-81 (1963): Chemistry is our Covalent Bond

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