WO2013014267A1 - General method for preparing fatty acyl amido based surfactants - Google Patents
General method for preparing fatty acyl amido based surfactants Download PDFInfo
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- WO2013014267A1 WO2013014267A1 PCT/EP2012/064771 EP2012064771W WO2013014267A1 WO 2013014267 A1 WO2013014267 A1 WO 2013014267A1 EP 2012064771 W EP2012064771 W EP 2012064771W WO 2013014267 A1 WO2013014267 A1 WO 2013014267A1
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- fatty acid
- amino compound
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/02—Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
Definitions
- the invention concerns a process for producing fatty acyl amido based surfactants.
- Fatty acyl amido salts are desirable surfactants. They have good water solubility, good detergency and foaming properties. Most especially they are mild to the skin. Unfortunately the amount of and extent of their usage is limited because they are expensive to produce.
- WO 2008/019807 A1 (Clariant International Ltd.) describes a process for preparing acyl glycinates by oxidation of fatty acid monoethanolamides using a transition group metal catalyst, particularly a gold on titanium dioxide nano-sized catalyst.
- glycyldiketopiperazine as well as unreacted glycine.
- the reaction is said to be highly efficient (yield of the acylated forms) but this results because the ratio of lauric acid starting material to glycine is extremely high.
- GB 1 337 782 (Rohm Gmbh) describes an interesterification process for the preparation of salts of N-acylaminocarboxylic acids.
- a carboxylic acid or an amide thereof is reacted with an aminocarboxylic acid containing at least three carbon atoms, the reaction being done in the presence of at least a stoichiometric amount (based upon the aminocarboxylic acid) of salt-forming cations.
- glycine was said to be unusable because the process resulted in considerable resinification.
- aminocarboxylic acids by reaction of a suspension of solid anhydrous alkali metal salts of aminocarboxylic acids and an appropriate carboxylic acid or ester.
- Catalytic amounts of strong base are added to the suspension to promote the reaction.
- Illustrative is the reaction of equimolar amounts of lauric acid and anhydrous sodium sarcosine heated together molten at 200°C in the presence of a molar equivalent of sodium hydroxide. Although the yields are high, the resultant product is highly colored.
- Japanese Patent Application 57/058,653 reports a process for producing a N-acylamino acid by reacting the corresponding amino acid with an ester.
- Illustrative esters include methyl laurate, methyl stearate and fatty acid glyceride esters such as triacetin, trilaurin and tristearin.
- polar solvents such as acetonitrile, dimethyl sulfoxide or N,N-dimethylformamide.
- a process for the preparation of C 8 -C 2 2 acyl amido compounds includes:
- step (ii) heating reactants from step (i) to form the Ce-C 22 acyl amido
- the reaction medium may be substantially free of water.
- substantially free of water amounts from 0 to 10%, preferably from 0 to 5%, more preferably from 0 to 3%, still more preferably from 0 to 1 %, and especially from 0.05 to 1 % by weight of water.
- Water of hydration (such as found associated with the amino carboxylic or sulphonic acid monohydrate) is not considered to count as part of water present in the reaction medium.
- the reaction mixture desirably should have a pKa at 25°C ranging from 9.5 to 13, and preferably from 10.5 to 1 1.5.
- a first reagent is that of an amino compound or amino acid or salt thereof. Suitable salts include sodium and potassium salts, especially of the amino acids.
- the reagent may either be in an anhydrous or hydrated form.
- Suitable amino compounds or salts thereof are those selected from the group consisting of alanine, valine, leucine, isoleucine, phenylalanine, tryptophan, methionine, proline, aspartic acid, glutamine acid, glycine, serine, threonine, cysteine, tyrosine, asparagines, glutamine, lysine, arginine, histidine, sarcosine, n-methylglucamine, glucamine and taurine. Particularly preferred are glycine, sarcosine, taurine, N-methylglucamine and glucamine.
- a second reagent is a fatty acid ester.
- fatty acid is herein defined as an 8 to 22 carbon carboxylic radical containing material that may be saturated, unsaturated, branched, unbranched or a combination thereof.
- a variety of fatty acid esters may be suitable as co-reactants. Most preferably are the C1-C3 alkyl esters of a C-8-C22 fatty acid. Illustrative are methyllaurate, methyloleate, methylinoleate, methylmyristate, methylstearate, methylpalmitate, ethyllaurate, ethyloleate, ethyllinoleate, ethylmyristate, ethylstearate, ethylpalmitate, n-propyllaurate, n-propyloleate, n-propyllinoleate, isopropyllaurate, isopropyloleate, isopropyllinoleate, isopropylmyristate, isopropylstearate, isopropylpalmitate and mixtures thereof. Particularly suitable methyl cocoate.
- the C1-C3 alkyl esters of C-8-C-22 fatty acids may be generated from triglycerides by hydrolysis with a respective C1-C3 alkanol.
- Most suitable as the alkanol is methanol.
- triglycerides are coconut oil, corn oil, palm kernel oil, palm oil, soybean oil, sunflowerseed oil, cottonseed oil, rapeseed oil, canola oil, castor oil and mixtures thereof. Most preferred is coconut oil.
- glyceride esters suitable as a co-reactant in the process of this invention are the glyceride esters. These glycerides may be selected from monoglycerides, diglycerides, triglycerides and mixtures thereof. Illustrative monoglycerides are monoglyceryl laurate, monoglyceryl oleate, monoglyceryl linoleate, monoglyceryl myristate, monoglyceryl stearate, monoglyceryl palmitate, monoglyceryl cocoate and mixtures thereof.
- Illustrative diglycerides include glyceryl dilaurate, glyceryl dioleate, glyceryl dilinoleate, glyceryl dimyristate, glyceryl distearate, glyceryl diisostearate, glyceryl dipalmitate, glyceryl cocoate, glyceryl monolaurate monomyristate, glyceryl monolaurate monopalmitate and mixtures thereof.
- Illustrative but non-limiting triglycerides include oils and fats such as coconut oil, corn oil, palm kernel oil, palm oil, soybean oil, cottonseed oil, rapeseed oil, canola oil, sunflowerseed oil, sesame oil, rice oil, olive oil, tallow, castor oil and mixtures thereof. Most preferred is coconut oil.
- Use of mono-, di- and tri- glycerides as the co-reactant has an advantage over the C1-C3 alkyl esters of C8-C22 fatty acids. The latter are generally made from breakdown of triglycerides. Conversion from the triglycerides adds an extra step to the process.
- R is a C7-C 21 saturated or unsaturated alkyl radical
- R 1 is a Ci-C 4 alkyl
- R 2 is hydrogen, CH2COOX or a C1-C5 alkyl radical
- R 3 is hydrogen
- R 4 is selected from the group consisting of (CH 2 ) m C0 2 X, (CH 2 ) m S0 3 X, CH 2 NR 2 (CH 2 ) m OH and glucosyl radicals
- R 5 is selected from the group consisting of hydrogen, hydroxyphenyl, C1-C-6 hydroxyalkyl, C1-C10 alkyl, benzyl, hydroxybenzyl, alkylcarbamido, thioalkyi, and carboxylic radicals
- X is selected from hydrogen, metal ions, amine salts and Ci-C 4 alkyl radicals
- m ranges from 0 to 6.
- R is a C7-C 21 saturated or unsaturated alkyl radical; R" and R'" independently are selected from C7-C 21 radicals which may be the same or different, hydrogen and mixtures thereof; R 2 is hydrogen, CH2COOX or a C1-C5 alkyl radical; R 3 is hydrogen; R 4 is selected from the group consisting of
- R 5 is selected from the group consisting of hydrogen, hydroxyphenyl, C1-C6
- hydroxyalkyl C 1 -C 10 alkyl, benzyl, hydroxybenzyl, alkylcarbamido, thioalkyl, and carboxylic radicals
- X is selected from hydrogen, metal ions, amine salts and Ci- C 4 alkyl radicals
- m ranges from 0 to 6.
- Salts of the amido carboxylic or sulphonic acid products of the process may have any type of cationic counterion, but preferably are selected from sodium, potassium or mixed cations. Particularly suitable as the R 1 group is a methyl radical.
- Relative molar amounts of amino compound or salt thereof to fatty acid ester may range from about 3:1 to about 1 :3, preferably from about 2:1 to about 1 :1 , more preferably from 1.3:1 to 1.05:1.
- Polyols of molecular weight ranging from 76 to 300, preferably from 90 to
- the relative mole ratio of polyol to the amino compound or salt thereof may range from about 8:1 to about 1 :1 , preferably from about 6:1 to about 1 :1 , and more preferably from about 2:1 to 1 :1.
- Most preferred as the polyol are glycerol, propylene glycol and mixtures thereof.
- the total amount of polyol will range from 50 to 100%, preferably 80 to 100%, and optimally 98 to 100% by weight of the medium.
- Temperature conditions for the reaction may range from about 50°C to about 150°C, preferably from about 80°C to about 140°C, and optimally from about 1 10°C to about 130°C.
- Basic metal salt containing catalysts are usefully present to improve reaction speeds and conversion levels. Particularly useful are alkaline and alkaline earth metal containing hydroxides, phosphates, sulphates and oxides including calcium oxide, magnesium oxide, barium oxide, sodium oxide, potassium oxide, calcium hydroxide, magnesium hydroxide, calcium phosphate, magnesium phosphate and mixtures thereof. Most suitable are calcium oxide and magnesium oxide, with the former being preferred. Amounts of the basic metal salt catalyst may range from about 1 to about 20%, preferably from about 1 to about 10%, more preferably from about 1.5 to 5% by weight of starting amino compound present in the reaction.
- Buffering compounds may also in some embodiments have utility to improve conversions and reaction times of the present invention.
- Suitable buffers include trisodium phosphate, disodium hydrogen phosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate and mixtures thereof. Particularly useful is trisodium phosphate.
- Amounts of the buffer may range from about 1 to about 30% by weight of the amino compound or salt thereof present in the reaction. Preferably the amount is from about 5% to about 15% by weight of the starting amino compound or salt thereof present in the reaction.
- distillation of the alkanol (e.g. methanol) in the monoester route can be done under atmospheric as well as reduced pressure conditions.
- reaction products for many purposes need not be isolated.
- polyol may not need to be separated where the acyl amido compounds are intended for personal care products such as body washes, toilet bars, shampoos or even lotions.
- Some polyols, particularly glycerol and propylene glycol are useful in these products as a moisturizer.
- the resultant reaction mixture can be further processed.
- the mixture can be treated with ethanol which precipitates out the acyl amido carboxylic or sulphonic salt or with acidification the free acid form but retains polyol and unreacted starting materials solubilized within the ethanol.
- the unreacted starting materials and polyol can be recycled for further reaction by evaporation (e.g. distillation) of the ethanol.
- the hot liquid mass of reaction product bearing acyl amido carboxylic or sulphonic acid/salt product and polyol is removed from the reactor and forms a semi-solid. Color of this mass is evaluated by the Hunter Lab Color Scale. The resultant mass from the reaction can vary in color from white to slightly off-white. On the Hunter scale, the key parameter will be the L value which is a reflectance measure of brightness. L should range between 70 and 100, preferably from 75 to 100, optimally from 90 to 100.
- the b value can also be considered.
- the “b” may range from 0 to 20, preferably from 0 to 15 and optimally from 0 to 3.
- the "a” value which may range from -2 to 8, preferably -1 to 5, and optimally from 0 to 4.
- any particular upper concentration can be associated with any particular lower concentration or amount.
- a 250 ml 3-neck glass reactor vessel was used to conduct a series of comparative experiments.
- a central neck was fitted with a stirring rod with Teflon® blade at one end and a motor for rotating the rod at a second end.
- a second neck of the reactor was fitted with a water-cooled condenser leading to a Dean-Stark trap for collecting methanol generated in the interesterification reaction.
- the third neck was fitted with a thermometer attached to a temperature control device.
- the reactor was externally heated in a glas-col heating mantle.
- experiment 1 the reactor was charged with 25g glycerol, 0.41 g calcium oxide, 17.5g sodium glycine, and 39g cocoyl methyl ester. Initially two phases were present in the reactor.
- the resultant mass contained 50.3% sodium cocoyl glycinate, 7.2% Cs-C-ie fatty acids, 34.1 % glycerol, 1 .6% glycine, less than 1.0% methyl cocoate, and the remainder calcium oxide and other minor materials.
- the sodium cocoyl glycinate was shown to contain the following fatty acid chain length distribution based on % amounts in the total resultant mass: 5.0% C 8 , 3.8% do, 27.4% C12, 9.7% CM, 4.5% C16 and 6.9% d 8 .
- the d 8 glycinate was a mixture of stearic, oleic and linoleic isomers. The unsaturated C18 compounds survived the reaction conditions in contrast to their absence under conditions of the alternate acyl chloride route.
- Trisodium phosphate at 1.5 g. ; Doubled CaO to 0.82 g. ; Magnesium oxide substitute for calcium oxide at 0.41 g.
- Amount of the medium was 100 g .
- Experiments 22 and 23 produced respectively good yields of sodium cocoylsarcosinate and sodium cocoyltaurate. Amides of N-methyl glucamine were also provided in good yields as detailed in Experiment 24.
- a 250 ml 3-neck glass reactor vessel was used to conduct a series of comparative experiments.
- a central neck was fitted with a stirring rod with Teflon® blade at one end and a motor for rotating the rod at a second end.
- a second neck of the reactor was fitted with a water-cooled condenser leading to a Dean-Stark trap for collecting distillates generated in the interesterification reaction.
- the third neck was fitted with a thermometer attached to a temperature control device.
- the reactor was externally heated in a glas-col heating mantle.
- experiment 1 the reactor was charged with 25g glycerol, 17.5g Na glycine, 0.41 g calcium oxide, 3g sodium phosphate (buffer), and 41.2g coconut oil.
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- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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- Coloring Foods And Improving Nutritive Qualities (AREA)
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Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2014001144A MX2014001144A (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acyl amido based surfactants. |
JP2014522108A JP5940664B2 (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acylamide based surfactants |
CN201280035214.1A CN103857653B (en) | 2011-07-28 | 2012-07-27 | Prepare surfactant conventional method based on fatty acyl amino |
BR112014001388-8A BR112014001388B1 (en) | 2011-07-28 | 2012-07-27 | c8-c22 acyl starch preparation process |
EA201490375A EA029306B1 (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acyl amido based surfactants |
CA2839047A CA2839047C (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acyl amido based surfactants |
ES12740365.7T ES2559456T3 (en) | 2011-07-28 | 2012-07-27 | General procedure for the preparation of surfactants based on fatty acylamide |
EP12740365.7A EP2736879B2 (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acyl amido based surfactants |
ZA2013/09450A ZA201309450B (en) | 2011-07-28 | 2013-12-13 | General method for preparing fatty acyl amido based surfactants |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/192,490 US8853447B2 (en) | 2011-07-28 | 2011-07-28 | General method for preparing fatty acyl amido based surfactants |
US13/192,490 | 2011-07-28 | ||
US13/343,727 US8853433B2 (en) | 2011-07-28 | 2012-01-05 | General method for preparing fatty acyl amido based surfactants |
US13/343,727 | 2012-01-05 |
Publications (1)
Publication Number | Publication Date |
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WO2013014267A1 true WO2013014267A1 (en) | 2013-01-31 |
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PCT/EP2012/064771 WO2013014267A1 (en) | 2011-07-28 | 2012-07-27 | General method for preparing fatty acyl amido based surfactants |
Country Status (12)
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US (1) | US8853433B2 (en) |
EP (1) | EP2736879B2 (en) |
JP (1) | JP5940664B2 (en) |
CN (1) | CN103857653B (en) |
AR (1) | AR087322A1 (en) |
BR (1) | BR112014001388B1 (en) |
CA (1) | CA2839047C (en) |
EA (1) | EA029306B1 (en) |
ES (1) | ES2559456T3 (en) |
MX (1) | MX2014001144A (en) |
WO (1) | WO2013014267A1 (en) |
ZA (1) | ZA201309450B (en) |
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WO2014008103A1 (en) * | 2012-07-03 | 2014-01-09 | Stepan Company | Process for preparing n-acyl amino acid salts |
EP2736877B1 (en) | 2011-07-28 | 2015-09-16 | Unilever PLC, a company registered in England and Wales under company no. 41424 | Amino acid salt containing compositions |
CN105439881A (en) * | 2014-11-24 | 2016-03-30 | 丰益精细化学(连云港)有限公司 | Preparation method for alkanolamide and method for reducing color of alkanolamide |
WO2018001680A1 (en) | 2016-06-29 | 2018-01-04 | Evonik Degussa Gmbh | Method for producing surfactants |
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BR112016003494B1 (en) | 2013-08-19 | 2021-02-09 | Stepan Company | process for the preparation of n-acylamino acid salts |
RU2573831C1 (en) * | 2014-07-11 | 2016-01-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежский государственный университет" (ФГБОУ ВПО "ВГУ) | Method for obtaining surface-active substances, based on soya isolate and methyl ethers of fatty acids of vegetable oils |
CN104741032A (en) * | 2015-01-30 | 2015-07-01 | 北京工商大学 | Method for preparing fatty acyl sodium methionine and composition comprising surfactant |
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CN115557847A (en) * | 2021-06-30 | 2023-01-03 | 湖南师范大学 | Succinic acid monoester/amide amino acid surfactant containing ester/amide amino and preparation method thereof |
CN114181118B (en) * | 2021-11-25 | 2022-10-14 | 张家港格瑞特化学有限公司 | Synthesis process of fatty acyl taurate |
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2012
- 2012-01-05 US US13/343,727 patent/US8853433B2/en active Active
- 2012-07-26 AR ARP120102707A patent/AR087322A1/en unknown
- 2012-07-27 EP EP12740365.7A patent/EP2736879B2/en active Active
- 2012-07-27 CN CN201280035214.1A patent/CN103857653B/en active Active
- 2012-07-27 ES ES12740365.7T patent/ES2559456T3/en active Active
- 2012-07-27 JP JP2014522108A patent/JP5940664B2/en active Active
- 2012-07-27 BR BR112014001388-8A patent/BR112014001388B1/en active IP Right Grant
- 2012-07-27 CA CA2839047A patent/CA2839047C/en active Active
- 2012-07-27 EA EA201490375A patent/EA029306B1/en not_active IP Right Cessation
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2013
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Patent Citations (10)
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US8853433B2 (en) | 2014-10-07 |
ES2559456T3 (en) | 2016-02-12 |
US20130030198A1 (en) | 2013-01-31 |
BR112014001388A2 (en) | 2017-02-21 |
AR087322A1 (en) | 2014-03-12 |
CA2839047A1 (en) | 2013-01-31 |
JP5940664B2 (en) | 2016-06-29 |
EP2736879A1 (en) | 2014-06-04 |
ZA201309450B (en) | 2015-04-29 |
EP2736879B2 (en) | 2019-07-03 |
CA2839047C (en) | 2018-09-04 |
EA201490375A1 (en) | 2014-05-30 |
BR112014001388B1 (en) | 2019-10-29 |
JP2014523919A (en) | 2014-09-18 |
EP2736879B1 (en) | 2015-11-18 |
CN103857653A (en) | 2014-06-11 |
MX2014001144A (en) | 2014-02-27 |
EA029306B1 (en) | 2018-03-30 |
CN103857653B (en) | 2016-08-17 |
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