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<DIV><FONT face=Arial size=2>Hello, everyone,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Just wondering if anyone can help me to figure out
how to deprotect the ethylene glycol protected 2,4,6-tricyanobenzyl aldehyde.
Seems to be an easy reaction. However, I tried to use tosylic acid,
HCl, AlCl3+ N,N-dimethyl aniline, or I2 with acetone to
cleave it but none was successful. But the ethylene glycol protect
2,4,6-tribromobenzyl aldehyde can be deprotected pretty easily
by tosylic acid in acetone. Please give me some advice
if anyone ever had similar experience. Thanks a lot.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Ruisong Xu</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Department of Chem. and Biochem.</FONT></DIV>
<DIV><FONT face=Arial size=2>Southern Illinois University at
Carbondale</FONT></DIV>
<DIV><FONT face=Arial size=2>Carbondale, IL
62901</FONT> </DIV></BODY></HTML>