用草酸电化学合成尿囊素的研究  

Electrochemical Synthesis of Allantoin from Oxalic Acid

作　　者：孟阿兰[1] 谭庆[1] 卜雪峰 王光信[1] 

机构地区：[1]青岛化工学院应用化学系,山东青岛266042

出　　处：《精细化工》2000年第1期36-38,共3页Fine Chemicals

摘　　要：２０ ℃、电流密度６００ Ａ／ｍ２ 条件下，以铅板作电极，在无隔膜槽中电解草酸饱和溶液制得乙醛酸，产率５２％ ，电流效率７５％ 。乙醛酸、尿素、盐酸物质的量比为１∶３－５∶０－３，８０ ℃下，乙醛酸与尿素反应２ ｈ 可制得尿囊素，产率为５４－０ ％ 。In a cell without membrane, oxalic acid was electroreduced to glyoxylic acid at 20 ℃ and J=600 A/m\+2. The yield of glyoxylic acid was 52% and the current efficiency was 75%. At molar ration(HOOCCHO)∶n(H\-2NCONH\-2)∶n(HCl)=1∶3 5∶0 3 and 80℃, using hydrochloric acid as the catalyst glyoxylic acid and urea reacted for 2h to form allantoin . The yield of allantoin was 54%.

关 键 词：尿囊素 电化学合成 乙二酸 

分 类 号：TQ252.3[化学工程—有机化工]