Carbohydrate Research p. 197 - 208 (1983)
Update date:2022-08-05
Topics:
Castells, Josep
Lopez-Calahorra, Francisco
Geijo, Fernando
The formoin reaction, i.e., the autocondensation of formaldehyde in an aprotic solvent catalysed by the conjugate base of a thiazolium ion, has been studied in detail.Glucose, galactose, dihyroxyacetone dimer, xylose, and arabinose have been identified as products.The influence of catalysts, temperature, basicity, and reaction time is documented.N,N-Dimethylformamide is a more convenient solvent than ether, benzene, or diglyme.Ethyldi-isopropylamine affords better yields of carbohydrate material than triethylamine.At =<60 deg, aldol condensations are reduced to a minimum.After 1-2 h of reaction (depending on the conditions), the yields begin to decrease and become zero after ca. 24 h.
View MoreBeijing Greenchem Technology Co.,Ltd. ( Panjin Greenchem Technology Co.Ltd .)
website:http://www.bjgreenchem.com/
Contact:+86-427-6515887
Address:301,302, 3rd Floor, Building C-7, Dongsheng Science Park, Northern Territory, Zhongguancun, No. 66, Xixiaokou Road, Haidian District, Beijing
Changsha Goomoo Chemical Technology Co.Ltd
Contact:+86-731-82197655
Address:No.649,Chezhan Rd.(N),Changsha,Hunan,China
Wuhan Chemchemical Co., Ltd.(expird)
Contact:15973022782
Address:7-5-6218,Incubation Centre,Guandong Industry Park, East Lake High-Tech Development Zone,Wuhan City.
Shandong Bolode Bio-Technology Co., LTD
Contact:+86-0531-58966870
Address:136 Jingyi Road,Huaiyin District,Jinan,Shandong,China
TIANJIN DONGRUXIANG MINERALS MARKETING CO.,LTD(expird)
Contact:22-58516360
Address:tianjin
Doi:10.1021/ja01235a021
(1944)Doi:10.1039/j39700002629
(1970)Doi:10.1016/j.dyepig.2016.04.004
(2016)Doi:10.1021/ol006109t
(2000)Doi:10.1007/s10600-016-1612-9
(2016)Doi:10.1021/ol0063959
(2000)
