Registration Dossier - ECHA

29 Jul.,2024

 

Registration Dossier - ECHA

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May .

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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Solved Q2. 110 points) The reaction of 1,3-dimethylurea with

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Q2. 110 points) The reaction of 1,3-dimethylurea with methyl cyanoacetate in the presence of sodium methoxide in methanol gives 1,3-dimethyl-4-aminouracil. Propose step by step mechanistic pathway for this reaction. (Hint: the amide hydrogen is acidic N ΕΝΗ,