The Reaction of Cyanoguanidine with Formaldehyde. I. Hydroxymethylation and Methoxymethylation of Cyanoguanidine
作者:Michiaki Takimoto、Toichi Ebisuno、Ryuichi Shiba
DOI:10.1246/bcsj.56.3319
日期:1983.11
cyanoguanidine (CG) with formaldehyde, CG was first hydroxymethylated, then methoxylated, and finally exhaustively hydroxymethylated with a large excess of formaldehyde. 4-Cyanoimino-3-methoxymethylperhydro-1,3,5-oxadiazine was isolated as a major reaction product of 1,3-bis(methoxymethyl)-2-cyanoguanidine with formaldehyde. This product is an adduct of 3 mol of formaldehyde per mole of CG and a six-membered
为了检查氰基胍 (CG) 与甲醛的反应性,首先将 CG 羟甲基化,然后甲氧基化,最后用大量过量的甲醛彻底羟甲基化。4-氰基亚氨基-3-甲氧基甲基全氢-1,3,5-恶二嗪作为 1,3-双(甲氧基甲基)-2-氰基胍与甲醛的主要反应产物被分离出来。该产品是每摩尔 CG 3 摩尔甲醛和六元环醚的加合物。次要产物进一步甲氧基化并分离出 3,5-双(甲氧基甲基)-4-甲氧基甲基(氨基甲酰基亚氨基)全氢-1,3,5-恶二嗪。这是 2 mol 甲醛与主要产物通过氰基水合得到的酰胺化产物的加合物。perhydro-1,3的环结构,