Synthesis of water soluble oxamonoamide
Title：
Synthesis of water soluble oxamonoamide
Application Number：
 200410056889
Application Date：
 2004/08/30
Announcement Date：
 2005/05/11
Pub. Date：
Publication Number：
 1613846
Announcement Number：
 1246297
Grant Date：
 2006-3-22
Granted Pub. Date：
 2006-3-22
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C07C 235/06, C07C 231/02
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Wang Hairong, Zhang Ping, Wang Jianchen
Key Words：
 Synthesis, water soluble, oxamonoamide
Abstract：
 Synthesis of water soluble half amide oxide is carried out by taking 1,4-dioxane as solvent at low-temperature, diethylene acid anhydride reacting with dimethylamine, diethylamine, and dipropylamine under pyridine, the products concentrating, chlorhydric acid acidifying, crystallizing precipitating, and annealing purifying in water or alcohol and diethyl ether mixed solvent. Its advantages include good water solubility, high output, and simple process.
Claim：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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