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Old September 14th, 2005, 10:34
morend morend is offline
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Default Removing excess triphosgene

how to remove excess triphosgene from the reaction media?
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Old November 25th, 2005, 14:23
Knowitall Knowitall is offline
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Flushing with N2 takes too long. Depending on scale, you may want to quench with methanol (this makes dimethyl carbonate) which can be removed when you evaporate your solvent. Of course, methanol may react with your isocyantate too....
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Old January 17th, 2006, 21:35
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agree with aurochem strongly.
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