US PATENT SUBCLASS 987 / 172
.~.~.~ Contains the structure (C)2-P-(X) (X-*acyl), (C)2-P(=X) (X-*Z) or (C)2-P(=X) (X-*cyano) where Z is an atom other than C or H and * indicates a direct bond to the adjacent X atom (9/32C9)

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}
172.~.~.~ Contains the structure (C)2-P-(X) (X-*acyl), (C)2-P(=X) (X-*Z) or (C)2-P(=X) (X-*cyano) where Z is an atom other than C or H and * indicates a direct bond to the adjacent X atom (9/32C9)

DEFINITION

Classification: 987/172

Contains the structure (C)2-P(X)(X-*acyl), (C)2-P(=X)(X-*Z) or (C)2-P(=X)(X-*cyano) where Z is an atom other than C or H and * indicates a direct bond to the adjacent X atom (9/32C9):

(under subclass 171) Subject matter wherein the P compound contains the structure (C) -P(=X)(C)(X-acyl), (C) -P(=X)(C)(X-Z) or (C)-P(=X)(C)(X-cyano) wherein Z is an atom other than C or H.

(1) Note. The C of the acyl group, the atom other than C or H or the C atom of the cyano group are all directly bonded to the X (chalcogen atom).