US PATENT SUBCLASS 562 / 856
.~.~ Processes

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}
840  DF  .~ Carboxylic halides (i.e., compounds having the -C(=O)-halo group) {11}
856.~.~ Processes {7}
857  DF  .~.~.~> Phosgene reactant
858  DF  .~.~.~> Ketene reactant
859  DF  .~.~.~> Forming the carbonyl group {1}
861  DF  .~.~.~> Forming the carbonyl to halide bond {2}
864  DF  .~.~.~> Halogenation
865  DF  .~.~.~> Dehalogenation or dehydrohalogenation
866  DF  .~.~.~> Purification or recovery

DEFINITION

Classification: 562/856

(under subclass 840) Processes for the preparation of the carboxylic halide containing compounds or for the treatment of such compounds.