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Paper | Regular issue | Vol 43, No. 2, 1996, pp.437-442
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7313
Synthesis of 7-Aryl-2-dimethylamino-3,4,5,6-tetrahydropteridine-4,6-diones

Edward C. Taylor,* Masahiko Takahashi,* and Norio Kobayashi

*Department of Materials Science, Faculty of Engineering, Ibaraki University, Hitachi, Ibaraki 316, Japan


6-Amino-2-dimethylamino-5-nitrosopyrimidin-4(3H)-one (1) was condensed with a series of dimethylphenacylsulfonium bromides (2) in pyridine to yield 7-aryl-2-dimethylamino-3,4,5,6-tetrahydropteridine-4,6-diones (xanthopterin derivatives) (5) which were reduced to yield the corresponding 7,8-dihydro derivatives (6).