反応 #2467930

反応方程式

sodium hydroxide

melamine

sodium glyoxylate monohydrate

dimethoxyethanal

→

Melamine Dimethoxyethanal Glyoxylic Acid

反応条件

後処理

1. 1
   温度This mixture was heated
2. 2
   温度while maintaining the pH
3. 3
   その他close to 9-9.5 with adjustment

実験手順

170 g of melamine (1.35 mol) were added to an aqueous solution made up of 311.6 g of 15% sodium glyoxylate monohydrate (Sigma Aldrich, 0.41 mol) and 495 g of 60% dimethoxyethanal (2.86 mol). This mixture was heated under stirring for 2 h at 50-55° C. while maintaining the pH close to 9-9.5 with adjustment, if necessary, with as much 20% sodium hydroxide as was required (about 7 g).

出典