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splitting the racemate of d,l-phenylpropanolamine

Started by Vitus_Verdegast, November 24, 2003, 01:31:00 PM

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Vitus_Verdegast

November 24, 2003, 01:31:00 PM
The d,l-phenylpropanolamine (norephedrine) racemate is split with optically active thiazolidine-4-carboxylic acids of the formula:

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000472855-file_ehxc.jpg" title="View this image"> where R1 and R2 are both methyl or are joined together to form the pentamethylene group.


Patent US3959302



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