The Vespiary

The Hive => Newbee Forum => Topic started by: 3_4_BumbleBee on April 24, 2004, 04:45:00 PM

Title: cleavage of piperic acid via KMnO4 to piperonal
Post by: 3_4_BumbleBee on April 24, 2004, 04:45:00 PM
If I want to go from Piperic Acid to Piperonal...
How is the cleavage with Potassium Permanganate done?
how are the byproducts removed?
And what yield do i have to expect?
from Rhodium:
via KMnO4
piperic acid --> piperonal
KMnO4, alkali, 3°C
byproducts: piperonylic acid, racem. 2,3-dihydroxy-succinic acid, oxalic acid

Thanks, Elmö
Title: KMnO4 cleavage of alkenes
Post by: Rhodium on April 24, 2004, 07:25:00 PM
This is one suggestion:

Post 502699 (https://www.thevespiary.org/talk/index.php?topic=6859.msg50269900#msg50269900)

(Rhodium: "Alkenes to Aldehydes Using KMnO4", Chemistry Discourse)


Title: OK! Thank you! Hope TFSE is up again soon,...
Post by: 3_4_BumbleBee on April 24, 2004, 08:28:00 PM
OK! Thank you!
Hope TFSE is up again soon, that i don´t have to nerve with answered questions!...