2,5-diarylimidlazo[4,5-d] imidazoles
β Scribed by Herbert R. Kwasnik; James E. Oliver; Richard T. Brown
- Book ID
- 112122852
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1972
- Tongue
- English
- Weight
- 189 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0022-152X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
1,4-Disubstituted 5-thioxoperhydroimidazo [4,5-d]imidazol-2-ones were prepared by one-pot criss-cross cycloaddition reactions of 1,4-disubstituted 1,4-diazabuta-1,3-dienes with HNCS and HNCO generated in situ from potassium salts by acetic acid.
Metallation of 5-ethynyl-1-(2,3,5-tri-O-terf-butyldimethylsilyl-~-~-ribof~anosyl)imidazole-4-carboxamide (1) using n-BuLi, deuteration with deuterium oxide and removal of the fertbutyldimethylsilyl protecting groups using tetrabutylammonium fluroide yielded [2-'H]-5ethynyl-1 -(~-D-ribofi1ranosyl)imi