Synthesis method of 2-[2-(2-methoxyethoxy) ethoxy] acetic acid

The present invention discloses a 2- [2- (2-methoxyethoxy) ethoxy] acetic acid synthesis method, which is 2- [2- (2-methoxyethoxy) ethyl oxy] acetonitrile oxidized under oxidant, the product isolated, the [2- (2-methoxyethoxy) ethoxy] acetonitrile and 2- mole ratio of oxidant to 1: 1 ~ 10. The present process is simple, safe, reliable, easy industrial production.