dehydrocyclization of vicinal diols and amidines to access structurally diverse imidazolones, a class of valuable compounds found in numerous natural and biomedical products. The developed catalytic transformation proceeds with broad substrate scope, good functional group compability, the use of green molecular oxygen and reusable cobalt catalyst, which offers an important platform for the conversion of abundant
Efficient 4,5-dihydro-1H-imidazol-5-one formation from amidines and ketones under transition-metal free conditions
作者:Yanjun Xie、Xiufang Cheng、Saiwen Liu、Hui Chen、Wang Zhou、Luo Yang、Guo-Jun Deng
DOI:10.1039/c4gc01515k
日期:——
An efficient procedure for 4,5-dihydro-1H-imidazol-5-one preparation from aryl amidines and ketonesunder transition-metal free conditions is described. When cyclic ketones were employed, various spiro-fused 4,5-dihydro-1H-imidazol-5-ones were formed in high yields via rearrangement reaction.