US PATENT SUBCLASS 562 / 21
.~.~.~ Plural phosphori bonded directly to the same carbon

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}
8  DF  .~ Phosphorus acids or salts thereof (i.e., compounds having -XH, wherein X is chalcogen, attached directly to phosphorus by nonionic bonding and wherein the hydrogen may be replaced by a substituted or unsubstituted ammonium or by a group IA or IIA light metal) {7}
20  DF  .~.~ Plural phosphori attached indirectly to each other by nonionic bonding {1}
21.~.~.~ Plural phosphori bonded directly to the same carbon {1}
22  DF  .~.~.~.~> Processes

DEFINITION

Classification: 562/21

(under subclass 20) Compounds wherein the plural phosphorus atoms are bonded directly to the same carbon.

(1) Note. Examples of compounds provided for herein are: [figure]

[figure]