US PATENT SUBCLASS 987 / 114
.~.~ Contains the structure "carbocyclic ring"-P where "--" indicates that a ring carbon of the carbocyclic ring may or may not be bonded directly to the P atom (9/54A3)


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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}
110  DF  .~ Quaternary phosphonium compounds (C)a-P-(H)b wherein a+b=4, a=1-4, b=1-3, (9/54; 9/54A1; 9/54A1+W; 9/54A1+W2) {5}
114.~.~ Contains the structure "carbocyclic ring"-P where "--" indicates that a ring carbon of the carbocyclic ring may or may not be bonded directly to the P atom (9/54A3)


DEFINITION

Classification: 987/114

Contains the structure "carbocyclic ring"-P where "- -" indicates that a ring carbon of the carbocyclic ring may or may not be bonded directly to the P atom (9/54A3):

(under subclass 110) Subject matter wherein at least one of the C atoms of a ring composed solely of carbon atoms is bonded directly or indirectly to the P atom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113, for a compound wherein a carbon of an aryl ring is directly bonded to the P atom.