US PATENT SUBCLASS 987 / 181
.~.~ Pentavalent P having the structure (C)2-P(=X) (X-B) where X is chalcogen and B represents an atom other than C (9/30; 9/30B)

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}
181.~.~ Pentavalent P having the structure (C)2-P(=X) (X-B) where X is chalcogen and B represents an atom other than C (9/30; 9/30B) {5}
182  DF  .~.~.~> Contains the structure (X=C*)-P(=X) (C) (X-B) or (cyano*)-P(=X) (C) (X-B) where * indicates a bond of the C of the C=X group or of the C of the cyano group directly to the P atom (9/30A9)
183  DF  .~.~.~> Contains two or more (C)-P(=X) (C) (X-B) groups or at least one (B-X) (C) (X=)-P-(C)-P-(=X) (C) (X-B) group (9/30A6)
184  DF  .~.~.~> Contains the structure "carbocylic group"-P(=X) (C) (X-B) where "--" indicates that a ring carbon of the carbocyclic ring may or may not be directly bonded to the P atom (9/30A3; 9/30A4; 9/30A7)
185  DF  .~.~.~> Contains the structure "ethylenic group"-P(=X) (C) (X-B) where "--" indicates that a carbon atom of the ethylenic group may or may not be directly bonded to the P atom (9/30A2)
186  DF  .~.~.~> Contains a Q-(C)-P(=X) (C) (X-B) group wherein Q is a moiety containing an atom other than C or H (9/30A1; 9/30A1+U6)

DEFINITION

Classification: 987/181

Pentavalent P having the structure (C)2-P(=X)(X-B) where X is chalcogen and B represents an atom other than C (9/30; 9/30B):

(under subclass 116) Subject matter wherein the P compound is pentavalent and contains the structure (C)-P(=X)(C)(X-B) wherein X is chalcogen and B represents an atom other than carbon and is directly bonded to the X atom.

(1) Note. B as represented in most of the patents in this subclass is hydrogen (H).