Reactions of 5-chloro-2-methylsulfonyl-4-pyrimidinecarboxylic acid and its esters with amines. The inverse of reactivity in a pyrimidine ring
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Add time:07/20/2019 Source:sciencedirect.com
Reactions of 5-chloro-2-methylsulfonyl-4-pyrimidinecarboxylic acid with aliphatic amines afford 2-amino-5-chloro-4-pyrimidinecarboxylic acid, whereas 5-chloro-2-methylsulfonyl-4-pyrimidinecarboxylates form 5-amino-2-methylsulfonyl-4-pyrimidinecarboxylates under the same conditions.
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