ORGLIST: Visualizing DEAD in TLC

From: Le Thanh (lethanh6476$##$yahoo.com)
Date: Sat Mar 17 2007 - 23:33:15 EDT

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Dear all members,
   
  I did the Mitsunobu reaction using PPh3 and DEAD (diethyl azocarboxylate) and got the problem to separate my product (thiazoline amine) with by-product, the reduction of DEAD ( Et-CONH-NH-CO-Et). I used flash column chromatography but got the mixture. The by-prodcut can not detected in UV.
   
  Can you suggest any way to separate the mixture.
  THank you,
   
  Le Thanh,
  Hanoi College of Pharmacy, Vietnam
   
   
  

mahesh singh <maheshddll$##$rediffmail.com> wrote:
     
Hi every body I am working with 2-aminocyclohexanol derivatives
and i need a metod for it's resolution.
Plese help me.
MAHESH SINGH
IIT ROORKEE
M.Tech
(chemistry)
ADVANCED CHEMICAL ANALYSIS

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