Pseudoephedrine to Ephedrine

somnipherum · Mon Oct 03, 2005 8:13 pm

Any information on that subject?
Pseudoephedrine is a diastereomer of ephedrine. How will it be possible
to convert it back to Ephedrine?

java · Consumer

If you plan to reduce the amino alcohol to one of the alkylamines both the ephedrine and pseudo ephedrine will work , unless you need specifilally ephedrine then google for changing diastereomers of amino alcohols......java

somnipherum · Tue Oct 04, 2005 7:53 pm

Thanks for the reply, java!
While surfing, I found a little question in one organic chemistry
exam, that has the answer to my question (Look at question number 9 -
that´s about pseudoephedrine convertion to ephedrine). The answer is given
below in a box (option C):

http://acpcommunity.acp.edu/Facultystaff/hass/oc2web/lecture/exams/S2003/s03ex1key.pdf

Now that I know the reagents, how much and how must
we use them?