US PATENT SUBCLASS 558 / 97
.~.~.~.~.~.~.~ Trivalent phosphorus converted into pentavalent phosphorus

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
70  DF  .~ Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon) {18}
87  DF  .~.~ Processes {19}
89  DF  .~.~.~ Forming the phosphorus ester group {7}
90  DF  .~.~.~.~ Reactant having halogen attached directly to phosphorus by nonionic bonding {3}
92  DF  .~.~.~.~.~ And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) {7}
95  DF  .~.~.~.~.~.~ The phosphorus in the reactant is trivalent {2}
97.~.~.~.~.~.~.~ Trivalent phosphorus converted into pentavalent phosphorus

DEFINITION

Classification: 558/97

(under subclass 95) Processes wherein the trivalent phosphorus in converted into a pentavalent phosphorus.

(1) Note. This subclass provides for processes wherein the phosphorusis oxidized from a trivalent state to a pentavalent state and a phosphorus ester group is formed.