C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
C07F9/02—Phosphorus compounds
C07F9/28—Phosphorus compounds with one or more P—C bonds
C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
C07F9/40—Esters thereof
C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
C07F9/4006—Esters of acyclic acids which can have further substituents on alkyl