Preparation method of piperonal

[Chemtrail]

Preparation method of piperonal​

CN108752310B patent​

China

The current methods for preparing piperonal are as follows:

CN108752310B - Preparation method of piperonal - Google Patents

The invention provides a preparation method of piperonal, which comprises the following steps: the piperonyl, the catalyst and the urotropine react in an alcohol solvent at 50-120 ℃ for 1-10 h to obtain the piperonal. The whole process only needs one-step reaction, the process is simplified, the...

patents.google.com

Enjoy this sexy little patent

 

[Chemtrail]

*safrole *

Swim could do a synthesis :

5-bromo-1,3-benzodioxole (methylene benzene "honey comb" with a bromine -arm) --->
safrole

Eugenol oil --->
Safrole

*That sesemol molecule seems to have potential .. *

Or

Just distill from sassafras oil ~80% at ~140C w/ vacuum pump ~4 hours


...-erowid has some clever ideas of a safrole synthesis

 

[Chemtrail]

Swim had noticed piperonal (heliotropin) CSA# 120-57-0

Has been sold in perfume stores in 20% - 50% concentration ratios for legal reasons

with Benzyl Benzoate (BB)

DiPropylene Glycol (DPG)

TriEthyl Citrate (TEC)



The question is how could Swim extract the piperonal (or heliotropin) ; from the other Non Polar solubility additives ?

 

[Chemtrail]

There is a ~60° Boiling Point difference with

Piperonal 264C

and

Benzyl Benzoate 324C


The solubility are basically the same , as well as the dipropylene glycol and TriEthyl Citrate