Syntheses of New Pyrimidine Derivatives Starting from 1,1-Diamino-2,2-dicyanoethylene |
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| Authors: | Richard Neidlein Zhijun Wang |
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| Affiliation: | Pharmazeutisch-Chemisches-Institut der Universit?t Heidelberg , Im Neuenheimer Feld 364, D-69120, Heidelberg, Germany |
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| Abstract: | A ready one-pot preparation for 6-amino-4-chloro-5-cyano-2-dimethylaminopyrimidine (3), 4-chloro-5-cyano-2-dimethylamino-6-(dimethylamino-chloro)azomethinopyrimidine (4) and their derivatives from 1,1-diamino-2,2-dicyanoethylene and dichloromethylenedimethyliminium chloride (phosgeneiminium chloride) is reported. |
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| Keywords: | Cinnamaldehyde, Cross aldol condensation ortho‐Hydroxycinnamaldehyde One‐step procedure |
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