Synthesis of Aminopyrimidopyidazines as Chemiluminescent Compounds by Reaction of Functionalized Maleimide with Various Amine Derivatives
摘要:
The reaction of ketene dithioacetal, bis(methylthio)methylenepropanedinitrile, with nitromethane gave 2-hydroxyimino-4-cyano-3-methylthiomaleimide (3) which was readily derived to the corresponding 4-cyano-3-methylthiomaleimide (5) by methylation with dimethyl sulfate followed by hydrolysis with hydrochloric acid. Compound 5 smoothly reacted with various amine compounds to give the corresponding amino-polycyclic pyrimidines containing a pyrroline ring, which were readily converted to the desired polycyclic pyridazine derivatives in good yields.
Synthesis of Aminopyrimidopyidazines as Chemiluminescent Compounds by Reaction of Functionalized Maleimide with Various Amine Derivatives
摘要:
The reaction of ketene dithioacetal, bis(methylthio)methylenepropanedinitrile, with nitromethane gave 2-hydroxyimino-4-cyano-3-methylthiomaleimide (3) which was readily derived to the corresponding 4-cyano-3-methylthiomaleimide (5) by methylation with dimethyl sulfate followed by hydrolysis with hydrochloric acid. Compound 5 smoothly reacted with various amine compounds to give the corresponding amino-polycyclic pyrimidines containing a pyrroline ring, which were readily converted to the desired polycyclic pyridazine derivatives in good yields.
The reaction of ketene dithioacetal, bis(methylthio)methylenepropanedinitrile, with nitromethane gave 2-hydroxyimino-4-cyano-3-methylthiomaleimide (3) which was readily derived to the corresponding 4-cyano-3-methylthiomaleimide (5) by methylation with dimethyl sulfate followed by hydrolysis with hydrochloric acid. Compound 5 smoothly reacted with various amine compounds to give the corresponding amino-polycyclic pyrimidines containing a pyrroline ring, which were readily converted to the desired polycyclic pyridazine derivatives in good yields.