US PATENT SUBCLASS 987 / 121
.~.~ Pentavalent P compound having the structure (C)-P(=X)(C or H)(C or H) where X is chalcogen (9/53)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


987 /   HD   ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM

30  DF  PHOSPHORUS COMPOUNDS (9/02; 9/06) {15}
116  DF  .~ Contains at least one (C)-P bond (9/28) {19}
121.~.~ Pentavalent P compound having the structure (C)-P(=X)(C or H)(C or H) where X is chalcogen (9/53) {4}
122  DF  .~.~.~> At least one of the carbon atoms bonded to the P atom is not part of an aryl ring and is bonded directly to an aryl ring or is bonded to an aryl ring through a chain of acyclic carbon atoms (9/53A7)
123  DF  .~.~.~> Compound having two or more (C)-P(=X) groups or at least one (X=)-P-(C)-P(=X) group (9/53A6)
124  DF  .~.~.~> Compound contains a ring composed solely of carbon atoms or contains an ethylenic group (9/53A3; 9/53A4)
125  DF  .~.~.~> Compound contains a nitrogen or halogen atom or contains a chalcogen atom other than bonded to the P atom (9/53A1; 9/53A2)

DEFINITION

Classification: 987/121

Pentavalent P compound having the structure (C)-P(=X)(C or H) (C or H) where X is chalcogen (9/53):

(under subclass 116) Subject matter wherein the P compound contains the structure (C)-P(=X)(C or H)(C or H), X is chalcogen, and the carbon or hydrogen atoms are directly bonded to the P atom.