Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Organic Chemistry Forum for Graduate Students and Professionals => Topic started by: karl26 on September 13, 2007, 06:12:45 AM
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HI ,
Does anyone know if a 2-amino pyrimidine will react with a chloroformate ( methy, phenyl...) under Schoten-Baumann conditions (DCM/NaOH aq, RT, strong stirring)
many thanks for your help ;)
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I guess it will react.
However, I'm not sure how stable the carbamate that you form will be.
Methyl and partly phenyl carbamates are a bit sensitive to basic hydrolysis, and your amine is not a 'standard' one.
But if you work at low temperature and quickly, you might get away with it.
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Chloroformates are very reactive reagents. At Schotten-Baumann conditions they probably decompose in some extent. At least 5-fold excess will be needed.
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thanks for your answer. do you expect chloroformate to be more reactive than acyl chloride (RCOCl) ? because Schoten-Baumann reaction using acid chloride are done with 1.5 eq. of acyl chloride.
thanks ;)