37 results about "Acetamidine hydrochloride" patented technology

The invention provides a method for preparing an acetamidine solution and co-producing enamine from sodium and acetamidine hydrochloride, and relates to the technical field of organic synthesis.The method comprises the following steps that sodium and acetamidine hydrochloride are subjected to a free reaction, byproduct salt is removed, a mixed solution of acetamidine and an intermediate is obtained, the mixed solution is taken to be layered, and enamine is obtained; the supernatant is acetamidine liquid, and the subnatant is an intermediate; and carrying out condensation reaction on the intermediate and o-chloroaniline to obtain enamine. The invention solves the problems of tedious process and high energy consumption of the existing acetamidine hydrochloride dissociation process, and achieves the technical effects of reduced raw and auxiliary materials, low cost, simple process and low energy consumption.