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The N-hydroxymethylation, N-acetylation, and N-acetoxymethylation of mono-, di-, and trialkylglycolurils by reaction with the electrophilic reagents formaldehyde and acetaldehyde have been studied. General methods have been developed for the preparation of mono-, di-, and tri-N-hydroxymethylglycolurils by treatment of differently substituted N-alkylglycolurils with formaldehyde (as hemiformal in methanol)...
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