
TY  - JOUR
A1  - Liepa, Andris J. 
A1  - Wright, Denis M. J. 
T1  - The Reaction of 1,2-Diones with Ureas-a Synthesis of 4-(1-Substituted)alkylimidazol-2-ones
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2000
VL  - 53
IS  - 1
SP  - 73
EP  - 76
KW  - Synthesis; ureas; thioureas; imidazolones; diones; glyoxal.
UR  - https://doi.org/10.1071/CH99130 
N2  - The reaction between glyoxal and ureas or thioureas in formic acid in the presence of sulfinates gives 4-arylsulfonylimidazol-2-ones such as (3b) and (3e). Labile 4-arylsulfonyl-5-hydroxyimidazolidin-2-ones (2a&#8211;c) may be isolated. Acyclic or cyclic 1,2-diketones react with ureas in the presence of selected nucleophiles to give side-chain substituted imidazol-2-ones (5a&#8211;e). 
ER  -

