Synthesis of sulfonic acids and carboxylic acid ester derivative

Details Synthesis of sulfonic acids and carboxylic acid ester derivative Synthesis of sulfonic acids and carboxylic acid ester derivative

1987-09-25

1990-03-20

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

560 1, 560103, 560104, 560112, 560128, 560219, 560266, 549499, C07C 6952

Patent

active

049103300

ABSTRACT:
Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is pure enough to be used directly in the synthesis of sulfo-acrylic esters which are finding considerable use as stabilizers in producing vinylidene chloride copolymers used for FDA approved packaging films.

REFERENCES:
patent: 2899461 (1959-08-01), Smith
patent: 3359305 (1967-12-01), Sheetz
patent: 4239696 (1980-12-01), Schreyer et al.
Merck Index (10th Edition), #4959, "Isethionic Acid".
Showell et al., Journal of Organic Chemistry, vol. 27 (1962), pp. 2853-2858.

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