4-Hydroxybenzaldehyde → 5-(p-Methoxybenzylidene)-hydantoin

Beteiligte Stoffe

Reaktionsschritte

5-(p-Methoxybenzylidene)-hydantoin was prepared in the same manner as in Example 4, except that 46.8 g (0.25 mol) of sodium L-glutamate.monohydrate and 68.1 g (0.50 mol) of p-methoxybenzaldehyde were used in lieu of glycine and p-hydroxybenzaldehyde, respectively. During the reaction, the pH of the reaction mixture was 9.9 to 9.7.

Herkunft & Nachweise