US PATENT SUBCLASS 562 / 424
.~.~.~.~ Of alkali metal phenolates

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}
423  DF  .~.~.~ Preparation by carbonation {1}
424.~.~.~.~ Of alkali metal phenolates {1}
425  DF  .~.~.~.~.~> Having plural rings

DEFINITION

Classification: 562/424

Of alkali metal phenolates:

(under subclass 423) Processes wherein an alkali metal phenolate is reacted with carbon dioxide to produce an aromatic hydroxy acid, as for example, the Kolbe-Schmitt reaction.