zbde00 - 19-2-2005 at 00:57
i found a paper about the synthesis of N,N-dimethylformamide di-tert-butyl acetal using ester exchange.I repeat it,but the yield is very low,10%
Is there anyone can give more information about this?
thx in advance!
IPN - 19-2-2005 at 02:09
How about posting/attaching the synthesis for starters? That might help a little..
Caffinehog - 5-3-2005 at 17:48
Is the product more volatile than the reactants? On the off chance that it is, you could distill it off, driving the reaction to completion.
sparkgap - 6-3-2005 at 04:23
Maybe not. MSDS from Alfa Aesar says that DMF t-Bu acetal boils @ 75-77 °C @ a pressure of 12 mm Hg, implying that it will boil hotter at normal
pressures, and that DMF boils at 153 °C at normal pressures. I'm feeling slightly lazy employing Clausius-Clapeyron at the moment... 
sparky (~_~)