Question Step-by-step chemical synthesis of piperonyl methyl ketone (CAS: 4676-39-5) from the PMK ethyl glycidate (CAS: 28578-16-7).

chemistry.mob

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I have done a search in this forum but I have not found said chemical synthesis, thanks to all.
I think this forum should be more organized with each synthesis and its name.
 

HerrHaber

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Ethyl glycidates of BMK\PMK are both done about the same way acid hydrolysis can lead to the rearrangement you most probably want and basic hydrolysys will yield the glycydate of the alkaline hydroxide employed (NaOH for example result in the sodium salt and KOH in the potassium salt and other less common alkaline hydroxides you may explore for curiosity such as Li, Cs, Rb, and maybe not quite Francium) and the corresponding ethy alcohol that is indicated to be removed as it forms as this is a good strategy to push the reaction equilibrium towards carboxyl formation that you may then heat until carboxyl group leaves as CO2 gas then the diol resulting from alkene oxide turn in to the 1-aryl-propan-2-one by some mysterious incantation or ritualistic chemsex perhaps. (I had no inspiration left for the final part)
 

chemistry.mob

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For the chemical synthesis of 3,4-methylenedioxymethamphetamine (MDMA) I need the chemical precursor called piperonyl methyl ketone (PMK), as getting this chemical precursor is difficult, I have been told that I can legally buy another substance called PMK ethyl glycidate from China, and with that substance convert it to PMK, the chemical precursor of MDMA.
Now my question is how can i convert the PMK ethyl glycidate to PMK.
is that there are two substances with similar names and it is misleading. PMK ethyl glycidate and Pmk methyl glycidate.
Sorry for my ignorance, but I have no idea about chemistry, I'm trying to learn little by little.
thank you!
 
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Acidosis

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pmk ethyl and pmk methyl differ in that pmk ethyl comes in liquid form similar to honey and pmk methyl comes in powder form, both are converted in the same way, in the forum it is perfectly explained how to proceed with the conversion. a hydrolysis with caustic soda water and hydrochloric acid will do the magic.
 

Acidosis

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pmk ethyl and pmk methyl differ in that the former comes in a liquid form similar to honey and the pmk methyl comes in the form of a powder, both are converted in the same way, in the forum it is perfectly explained how to proceed with the conversion. a hydrolysis with caustic soda water and hydrochloric acid will do the magic.
 

Acidosis

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Sorry for the first explanation, dont put this in spanish but the phone use the traductión automatic
 

chemistry.mob

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I do speak Spanish, sin problema hermano.
Would you be so kind to tell me in which part of the forum I can find the synthesis? I've done a search but haven't found it.
And do you know the yield of PMK that is obtained when carrying out said synthesis?
THANK YOU!
 

Acidosis

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Yes ,give me a moment and send you the link(only eanglesh in the forum are the rules,only in private is possible speak spanish).im in hospital now but sent the link today
 

Acidosis

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HerrHaber

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methyl, ethyl, n-propyl, iso-Pr, n-Butyl, i-Bu, sec-Bu, tert-Bu... and so on learning chemistry also try to grasp the hydrolysis reactions and acnowledge equilibrium (force that breaks the bond has also the ability to form it therefore one must be constantly removed) and decarboxylation is just heat turning the COOH acid moiety to CO2 (carbonic acid anhydride) that is exhausted as a gas and thus removed from the molecule.
 
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