Intermolecular compounds of amino acids and sulfoxides and metho

Details Intermolecular compounds of amino acids and sulfoxides and metho Intermolecular compounds of amino acids and sulfoxides and metho

1980-03-31

1981-11-24

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260513N, 260513R, 549 28, C07D33348, C07C14315

Patent

active

043025935

ABSTRACT:
An intermolecular compound of an amino acid containing a sulfonic acid group and a carboxylic acid group with a sulfoxide in which the amino acid is at least moderately soluble.
A method which comprises reacting an amino acid containing a sulfonic acid group and a carboxylic acid group with a sulfoxide in which the amino acid is at least moderately soluble.
A method for recovering an amino acid containing a sulfonic acid group and a carboxylic acid group from an admixture of the amino acid with other ingredients by adding thereto a sulfoxide in which the amino acid is moderately soluble, with the sulfoxide being added in a sufficient amount to solubilize the amino acid, separating an intermolecular compound of the amino acid with the sulfoxide, and then recovering the amino acid from its intermolecular compound.
A method for forming an intermolecular compound of a sulfoxide with an amino acid containing a sulfonic acid group and a carboxylic acid group by contacting the amino acid with a solvent which contains the sulfoxide dissolved therein with the solvent having a low polarity and the amino acid reactant and intermolecular compound having a low solubility in the solvent. This method also provides a means for removing a sulfoxide from a solvent in which it is dissolved.

REFERENCES:
patent: 3428671 (1969-02-01), Toland
patent: 3683014 (1972-08-01), Yang

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