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RISSynthesis and Antioxidant Evaluation of Quinoxalino[2′,3′:5,6][1,3,4]thiadiazino[2,3-b]quinazolin-15-ones: Derivatives of a Novel Ring System
Quinoxalino[20,30:5,6][1,3,4]thiadiazino[2,3-b]quinazolin-15-one, a novel fused heterocyclic system, was
synthesized from a one-pot condensation reaction of 2,3-dichloroquinoxaline and 3-amino-2-thioxo-2,3-
Metal-Free Debromination of 5-Bromopyrimidine Derivatives Using DMF/Trialkylamine as the Hydrogen Source
Attempted heterocyclization of 5-bromo-2,4-diamino-6-substituted pyrimidines in a mixture of DMF and trialkylamines (Et3N or N,N-diisopropylethylamine) under mild conditions, led to the formation of new dehalogenated ...
Pure Water-Induced Dehalogenation of 2,4-Di-tert-amino-6- substituted-5-halogenopyrimidines
Dehalogenation of 5-halogenopyrimidine derivatives in boiling pure water was accomplished in high yields. The substrate and pure water are the only two reaction components in this process. Dehalogenation takes place in the ...
Catalyst-free dehalogenation of 5-bromopyrimidine derivatives using DMF/trialkylamine as the hydrogen source
Introduction:
A wide range of synthetically valuable transformations in organic chemistry involve reduction
process through which functionalization can be easily performed over the course of the reaction.