Process for producing squaric acid

Details Process for producing squaric acid Process for producing squaric acid

1984-04-16

1986-04-15

Reamer, James H.

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

Organic compounds

Oxygen containing

C07C 4500

Patent

active

045829411

ABSTRACT:
A process for producing squaric acid comprises reacting hexachlorocyclobutene, or its mixtures with hexachlorobutadiene, with 96-100% sulfuric acid, at 80.degree.-150.degree. C., and adding at least the stoichiometric amount of water required for the hydrolysis, while maintaining the acid concentration between 96% and 100% throughout the reaction.

REFERENCES:
patent: 2650939 (1953-09-01), McBee et al.
patent: 3169147 (1965-02-01), Blomquist et al.
patent: 4097530 (1978-06-01), Schroeder et al.
patent: 4104308 (1978-08-01), Gadek et al.
patent: 4272633 (1981-06-01), Maahs et al.

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