US PATENT SUBCLASS 562 / 851
.~.~.~ Processes for forming the carbonyl group

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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
840  DF  .~ Carboxylic halides (i.e., compounds having the -C(=O)-halo group) {11}
849  DF  .~.~ Fluorine is the halogen (i.e., carboxylic fluorides) {3}
851.~.~.~ Processes for forming the carbonyl group

DEFINITION

Classification: 562/851

(under subclass 849) Processes whereby the carbonyl group, -C(=O)-, is formed.