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US 9,062,278 B2Granted
Preparing ether carboxylates
AssigneeBASF SE
InventorsRobert Baumann, Markus Christian Biel, Andreas Deckers, Alfred Oftring, Frank Rittig, Wolfgang Staffel
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for preparing ether carboxylates.
Claims17
A process for preparing an ether carboxylate of formula I
- from a corresponding alkoxylate of formula II,
- wherein
- R1 is a C1- to C50-alkylene, or polyamine,
- X is O, COO, CH2—NH—C(O)—, for q=1 and r=0 or X is N,
- N(CH2)tO for q=2 and
- r=0 to 20,
- r is an integer from 0 to 50,
- R2 is H or C1- to C10-alkyl,
- R3 is H or C1- to C10-alkyl,
- R4 is H or C1- to C10-alkyl,
- M is H or a metal, ammonium, or an organic base,
- n is from 0 to 50,
- m is from 0 to 40,
- p is from 0 to 40,
- q is from 1 to 2,
- s is 0 or 1,
- t is from 0 to 20,
- provided that n+m+p is at least 1 and
- R is C1- to C50-alkyl, C1- to C50-alkenyl, C1- to C50-alkynyl, C6- to C50-aryl, C6- to C50-alkylaryl, H or a metal,
- the process comprising:
- charging a reaction vessel with the alkoxylate of formula II and a transition metal catalyst to obtain a reaction mixture in the vessel;
- adjusting the temperature of the reaction mixture to a reaction temperature of from 140 to 220° C.;
- maintaining a pressure of less than 10 bar in the reaction vessel during reaction;
- adding a base to the reaction mixture at reaction temperature and pressure, and
- removing water from the reaction mixture during reaction to obtain the ether carboxylate of formula I.
22 more elements
A process for preparing an ether carboxylate of formula III
- from a corresponding alkoxylate of formula IV,
- wherein
- R is C1- to C50-alkyl, C1- to C50-alkenyl, C1- to C50-alkynyl, C6- to C50-aryl, C6- to C50-alkylaryl, H or a metal, preferably alkali, alkaline earth,
- X is O, COO, CH2—NH—O for q=1 or N,
- N(CH2)tO for q=2,
- R2 is H or C1- to C10-alkyl,
- R3 is H or C1- to C10-alkyl,
- R4 is H or C1- to C10-alkyl,
- M is H or a metal, ammonium, or organic base,
- n is from 0 to 50,
- m is from 0 to 40,
- p is from 0 to 40,
- q is from 1 to 2,
- t is from 1 to 10,
- provided that n+m+p is at least 1,
- the process comprising:
- charging a reaction vessel with the alkoxylate of formula II and a transition metal catalyst to obtain a reaction mixture in the vessel;
- adjusting the temperature of the reaction mixture to a reaction temperature of from 140 to 220° C.;
- maintaining a pressure of less than 10 bar in the reaction vessel during reaction;
- adding a base to the reaction mixture at reaction temperature and pressure, and
- removing water from the reaction mixture during reaction to obtain the ether carboxylate of formula I.
18 more elements
A process for preparing an ether carboxylate of formula V:
- from a corresponding alkoxylate of formula VI,
- wherein
- R is C1- to C50-alkyl, C1- to C50-alkenyl, C1- to C50-alkynyl, C6- to C50-aryl, C6- to C50-alkylaryl, H or a metal,
- X is O,
- R2 is H or C1- to C10-alkyl,
- R3 is H or C1- to C10-alkyl,
- R4 is H or C1- to C10-alkyl,
- M is H or a metal,
- n is from 0 to 50,
- m is from 0 to 40,
- p is from 0 to 40,
- provided that n+m+p is at least 1,
- the process comprising:
- charging a reaction vessel with the alkoxylate of formula II and a transition metal catalyst to obtain a reaction mixture in the vessel;
- adjusting the temperature of the reaction mixture to a reaction temperature of from 140 to 220° C.;
- maintaining a pressure of less than 10 bar in the reaction vessel during reaction;
- adding a base to the reaction mixture at reaction temperature and pressure, and
- removing water from the reaction mixture during reaction to obtain the ether carboxylate of formula I.
15 more elements
Dependencies are inferred from the claim text.