C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/501, 260/506
C07F 9/53 (2006.01)
Patent
CA 1066715
ABSTRACT OF THE DISCLOSURE. Organic phosphorus compounds containing carboxylic groups and correspondlng to the following general for- mula I Image I in which R1 and R2 each stand for organic groups having from 1 to 18 carbon atoms, and in which R1 or R2 may stand for a hydroxylic group or for the substituent R, the substituent R being a radical of the following gene- ral formula II Image II in which R3 and R4 equally stand for organic groups ha- ving from 1 to 18 carbon atoms and/or for hydrogen atoms,are made. To this end one or more phosphines of general formula III Image III in which R has the meaning given above, and R5 has the same meaning as R4 with the exception of hydrogen, are reacted, in a first step, with an .alpha.,.beta.-unsaturated carboxy- lic acid of general formula IV Image IV in which R3 and R4 equally have the meanings given above. The resulting phosphonium chlorides of general formula V Image V in which R5 has the meaning given above, and R6 has the same meaning as R3 or R, are admixed in a second step, with an oxidant; and the resulting compounds of general formula I are separated from the oxidation product.
259647
Hestermann Klaus
Vollmer Hartfrid
LandOfFree
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