US PATENT SUBCLASS 987 / 174
.~.~.~ Contains the structure (C)2-P(=X) (X-ethylenic group) (9/32C2)

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}
171  DF  .~.~ Pentavalent P having the structure (C)2-P(=X) (X-C) where X is chalcogen (9/32) {9}
174.~.~.~ Contains the structure (C)2-P(=X) (X-ethylenic group) (9/32C2)

DEFINITION

Classification: 987/174

Contains the structure (C)2-P(=X)(X-ethylenic group)(9/32C2):

(under subclass 171) Subject matter wherein the P compound contains the structure (C) -P(=X) (C)(X-ethylenic moiety) wherein a C of the ethylenic group can be directly bonded to the X atom or can be indirectly bonded to the X atom through other atoms.

(1) Note. An ethylenic group is defined as a double or triple bond between adjacent acyclic carbon atoms.

SEE OR SEARCH THIS CLASS, SUBCLASS:

178, wherein the compound contains an ethylenic group bonded directly or indirectly to the C atom of the C-P moiety and wherein the indirect linkage to the C atom is not through the P atom.