US PATENT SUBCLASS 987 / 218
.~.~ Containing the structure P-(O-*acyl), P-(O-*Z) wherein Z is an atom, other than C, H, or a salt former, or P-(O-*cyano) where * indicates a direct bond to the adjacent oxygen atom (9/141A9; 9/09A9+Q; 9/09A9+U)

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}
217  DF  .~ P is trivalent and contains the structure P-(O-C) or P-(O-Z) where Z is an atom other than H (9/141; 9/141A1) {4}
218.~.~ Containing the structure P-(O-*acyl), P-(O-*Z) wherein Z is an atom, other than C, H, or a salt former, or P-(O-*cyano) where * indicates a direct bond to the adjacent oxygen atom (9/141A9; 9/09A9+Q; 9/09A9+U)

DEFINITION

Classification: 987/218

Containing the structure P-(O-*acyl), P-(O-*Z) wherein Z is an atom other than C, H, or a salt former, or P-(O-*cyano) where * indicates a direct bond to the adjacent oxygen atom (9/141A9; 9/09A9+Q; 9/09A9+U):

(under subclass 217) Subject matter wherein the P compound contains the structure: (a) P-(O-acyl), or (b) P-(O-Z) where Z is an atom other than C or H, or (c) P-O-(C#N) the oxygen atom is bonded directly to the P atom and wherein the C of the acyl group, the atom other than C or H, and the C of the cyano group are all directly bonded to the oxygen atom and C#N indicates a triple bond between the C and N atoms.