US PATENT SUBCLASS 987 / 131
.~.~.~ At least one of the carbon atoms bonded to the P 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 carbon atoms only (9/50A7)

Current as of: June, 1999
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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}
129  DF  .~.~ Trivalent P compound having the structure (C)-P-(C or H)(C or H) (9/50) {5}
131.~.~.~ At least one of the carbon atoms bonded to the P 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 carbon atoms only (9/50A7)

DEFINITION

Classification: 987/131

At least one of the carbon atoms bonded to the P 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 carbon atoms only (9/50A7):

(under subclass 129) Subject matter wherein at least one of the carbon atoms directly bound to the P atom is not part of an aryl ring and is directly bonded to a carbon atom of an aryl ring, or is bonded to an aryl ring through a non-cyclic chain of carbon atoms.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133, for a compound containing an aryl ring wherein the C atom directly bound to the P atom is bound to the aryl ring through a non-aryl carbocyclic ring system or wherein the C atom directly bound to the P atom is part of an aryl ring system.