US PATENT SUBCLASS 562 / 407
.~.~.~ Formation of carboxyl group by oxidation

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
405  DF  .~.~ Aromatic {13}
407.~.~.~ Formation of carboxyl group by oxidation {1}
408  DF  .~.~.~.~> Of aromatic compound {3}

DEFINITION

Classification: 562/407

Formation of carboxyl group by oxidation:

(under subclass 405) Processes wherein a carboxyl group of an aromatic acid is formed by oxidation.

(1) Note. The term "oxidation" as utilized here includes processes where an oxidizing agent is utilized, as well as processes such as the dehydrogenation of alcohols and the hydrolysis of aromatic halo alkyl compounds. However, the formation of a carboxyl group by hydrolysis of functional derivatives of a carboxyl group are found in the product and process subclasses provided for the appropriate acid.

(2) Note. This subclass contains patents directed to the formation of aromatic carboxylic acids by oxidation of carbonaceous materials such as coal or coke.