US PATENT SUBCLASS 987 / 142
.~.~.~ Contains the structure (C)-P(=X) (X) (N-Q) where Q is a radical containing an atom other than C or H, or contains a ring composed solely of carbon atoms or contains an ethylenic group (9/44C; 9/44C1; 9/44C2; 9/44C3; 9/44C4; 9/44C7)

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}
140  DF  .~.~ Pentavalent P having the structure (C)-P(=X) (X) (N) or (C)-P(=X) (N)2 where X is chalcogen (9/44; 9/44A; 9/44A1; 9/44A6; 9/44A9; 9/44B; 9/44B1; 9/44B9) {3}
142.~.~.~ Contains the structure (C)-P(=X) (X) (N-Q) where Q is a radical containing an atom other than C or H, or contains a ring composed solely of carbon atoms or contains an ethylenic group (9/44C; 9/44C1; 9/44C2; 9/44C3; 9/44C4; 9/44C7)

DEFINITION

Classification: 987/142

Contains the structure (C)-P(=X)(X)(N-Q) where Q is a radical containing an atom other than C or H, or contains a ring composed solely of carbon atoms or contains an ethylenic group (9/44C; 9/44C1; 9/44C2; 9/44C3; 9/44C4; 9/44C7):

(under subclass 140) Subject matter wherein the P compound contains the structure (C)-P(=X) (X)(N-Q) wherein Q is a radical which contains (a) an atom other than C or H or (b) at least one ring containing only C atoms or (c) contains a double or triple bond between adjacent acyclic carbon atoms.

(1) Note. The required Q group may be directly or indirectly bonded to the N atom. The requirement for this subclass is that the Q group is bonded to the nitrogen atom which in turn

is directly bonded to the P atom. It is not necessary for the atom that is other than C or H to be directly bonded to the N atom, although it can be.