反应详情

温度

70 °C

22.65 g of guanine (manufactured by Tokyo Kasei Kogyo Co.) and 21.75 g of a 40% glyoxal aqueous solution (manufactured by Tokyo Kasei Kogyo Co.) were added to 950 mL of purified water, and the mixture was stirred with heating at 70° C. for 18 hours. The mixture was then cooled to 4° C. and filtered. The white solid obtained by the filtration was dried, thereby resulting in 30.7 g of glyoxal-guanine. The measurement result of nuclear magnetic resonance (NMR) spectrum is as follows:

1. temperatureThe mixture was then cooled to 4° C.
2. filtrationfiltered
3. customThe white solid obtained by the filtration
4. customwas dried
5. customresulting in 30.7 g of glyoxal-guanine
6. customThe measurement result of nuclear magnetic resonance (NMR) spectrum