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T979004 N,N-bis-(2-carboxyethyl)-aminophenols
Patent Drawings:

Inventor: Jamieson
Date Issued: February 6, 1979
Application: 05/877,922
Filed: February 15, 1978
Inventors: Jamieson; Norman C. (St. Louis County, MO)
Assignee: Mallinckrodt, Inc. (St. Louis, MO)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 562/452
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: N,N-bis-(2-carbomethoxyethyl)-p-aminophenol is prepared by refluxing an aqueous solution of p-aminophenol and at least two molar proportions of acrylic acid to form N,N-bis-(2-carboxyethyl)-p-aminophenol, separating the N,N-bis-(2-carboxyethyl)-p-aminophenol and refluxing it with an excess of methanol in the presence of sulfuric acid to form N,N-bis-(2-carbomethoxyethyl)-p-aminophenol and isolating the N,N-bis-(2-carbomethoxyethyl)-p-aminophenol in relatively pure form.
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