反应详情

A mixture of 2-hydroxyphenoxy acetic acid (16.8 g. 0.1 mole) and 80 ml. of 5N aqueous sodium hydroxide (0.4 mole) is stirred until solution is effected, then the solution treated with 2-bromo-2-(2-pyridyl)-acetic acid (21.6 g. 0.1 mole), and refluxed for 20 hours. The cooled solution is taken to neutrality and the diacid crystallized from benzene to give 2-(2-pyridyl)-2-(carboxymethoxyphenoxy)-acetic acid.

1. temperaturerefluxed for 20 hours
2. customthe diacid crystallized from benzene