反应详情

温度

100 °C

6 g of L-phenylglycine or L-p-hydroxyphenylglycine were suspended in a mixture of 20 ml of 95% acetic acid and 0.2 ml (0.05 mole per mole of the L-amino acid used) of salicylaldehyde. The suspension was stirred at 100° C. for 2 hours. After the reaction, the mixture was cooled to room temperature, and the crystalline precipitates were collected by filtration and then washed with methanol. DL-phenylglycine or DL-p-hydroxyphenylglycine was thereby obtained. The results are shown in Table 17.

1. customAfter the reaction
2. temperaturethe mixture was cooled to room temperature
3. customthe crystalline precipitates
4. filtrationwere collected by filtration
5. washwashed with methanol