ORGLIST: MnO2 as an oxidation reagent

Date view Thread view Subject view Author view Attachment view

From: Andy - (andyfromelite$##$hotmail.com)
Date: Sun Nov 21 2004 - 04:20:08 EST


There are very mixed reviews of this reagent for oxidation of allylic alcohols.

This apparently stems from the "quality" of the MnO2 used, not the type of solvent it is suspended in.,.  (THF,  DCM, CHCL3, and others)

Is this in fact the case?

Must the solvent be rigorously anhydrous?

Could then MnO2 that was once considered "low-potency"  be oven-dried (powdered, etc, ) and then be used successfully in the same expiriment , in effect, reserecting the oxidant?

 


 

_______________________________________________
ORGLIST - Organic Chemistry Mailing List
Website / Archive / FAQ: http://www.orglist.net
To post a message (TO EVERYBODY) send to everybody$##$orglist.net
To unsubscribe, send to everybody-request$##$orglist.net the message: unsubscribe your_orglist_password your_address
List coordinator: Joao Aires de Sousa (coordinator$##$orglist.net)


Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.4 : Mon Nov 22 2004 - 14:17:01 EST