期刊
SYNLETT
卷 -, 期 8, 页码 1276-1280出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0029-1219799
关键词
amine; carbon dioxide; polyethylene glycol; urea; supported catalyst
资金
- National Natural Science Foundation of China [20672054, 20872073]
- 111 project [B06005]
- Committee of Science and Technology of Tianjin
Polyethylene glycol supported potassium hydroxide (KOH/PEG1000) was developed as a recyclable catalyst for facile synthesis of urea derivatives from amines and CO2 without utilization of additional dehydrating agents. Primary aliphatic amines, secondary aliphatic amines, and diamines can be converted into the corresponding urea derivatives in moderate yields. Furthermore, the catalyst can be recovered after a simple separation procedure, and reused over 5 times with retention of high activity.
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