US PATENT SUBCLASS 562 / 846
.~.~.~ Processes utilizing phosgene as a reactant

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}
844  DF  .~.~ Nitrogen bonded directly to the carbonyl group (e.g., carbamyl chlorides, etc.) {2}
846.~.~.~ Processes utilizing phosgene as a reactant

DEFINITION

Classification: 562/846

(under subclass 844) Processes wherein phosgene, i.e., the compound of the following formula, is used as a reactant: [figure] [figure]