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Anise oil as PMA precursor

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lugh:
According to abstracts of these articles by Balbiano et al; acid catalyzed dimerization/polymerization occurs with propenylbenzenes, not allylbenzenes  ::)  If that is the case, then probably the interior double bond comprises one side of the dimer; and the other side is probably a methoxy/methylenedioxy group, depending on which propenylbenzene is involved  ;)  Ber 36 1375-84 (1903) & 42 1502-6 (1909):



8)

methyl_ethyl:
This is a poster presentation that describes the common impurtites that are formed during the peracid oxidation of anethole in the synthesis of PMA.



EVALUATION OF THE IMPURITIES FORMED DURING THE
PERACID OXIDATION OF ANETHOLE IN THE CLANDESTINE
SYNTHESIS OF P-METHOXYAMPHETAMINE (PMA)

Introduction:The profiling of synthesis impurities is of utmost importance
in forensic chemistry. This poster presents an overview of
impurities formed during the peracid oxidation of anethole
(the major component of anise oil) in the synthesis of PMA.


I hope this is not been posted before, a quick search yielded no results here or rhodi's site.

regards,

m_e

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