WO1992016639A1 - Regioselective synthesis of 1,3-disubstituted glycerides - Google Patents
Regioselective synthesis of 1,3-disubstituted glycerides Download PDFInfo
- Publication number
- WO1992016639A1 WO1992016639A1 PCT/US1992/001849 US9201849W WO9216639A1 WO 1992016639 A1 WO1992016639 A1 WO 1992016639A1 US 9201849 W US9201849 W US 9201849W WO 9216639 A1 WO9216639 A1 WO 9216639A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- process according
- glycerol
- fatty acid
- acid
- hydrocarbon
- Prior art date
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- 125000005456 glyceride group Chemical group 0.000 title abstract description 9
- 230000015572 biosynthetic process Effects 0.000 title description 4
- 238000003786 synthesis reaction Methods 0.000 title description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 108
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 30
- 239000000194 fatty acid Substances 0.000 claims abstract description 30
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- 238000000034 method Methods 0.000 claims abstract description 30
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- 230000008569 process Effects 0.000 claims abstract description 25
- 150000002314 glycerols Chemical class 0.000 claims abstract description 23
- -1 alkyl phosphates Chemical class 0.000 claims abstract description 18
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 16
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- 235000000346 sugar Nutrition 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
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- 229930182470 glycoside Natural products 0.000 claims abstract description 5
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- 235000021281 monounsaturated fatty acids Nutrition 0.000 description 1
- ZBJVLWIYKOAYQH-UHFFFAOYSA-N naphthalen-2-yl 2-hydroxybenzoate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=C(C=CC=C2)C2=C1 ZBJVLWIYKOAYQH-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002889 oleic acids Chemical class 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 235000020777 polyunsaturated fatty acids Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- ZMRUPTIKESYGQW-UHFFFAOYSA-N propranolol hydrochloride Chemical compound [H+].[Cl-].C1=CC=C2C(OCC(O)CNC(C)C)=CC=CC2=C1 ZMRUPTIKESYGQW-UHFFFAOYSA-N 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010512 small scale reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- RCRYHUPTBJZEQS-UHFFFAOYSA-N tetradecanoyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OC(=O)CCCCCCCCCCCCC RCRYHUPTBJZEQS-UHFFFAOYSA-N 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6436—Fatty acid esters
- C12P7/6445—Glycerides
- C12P7/6454—Glycerides by esterification
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/02—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with glycerol
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/44—Preparation of O-glycosides, e.g. glucosides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6436—Fatty acid esters
- C12P7/6445—Glycerides
- C12P7/6472—Glycerides containing polyunsaturated fatty acid [PUFA] residues, i.e. having two or more double bonds in their backbone
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6436—Fatty acid esters
- C12P7/6445—Glycerides
- C12P7/6481—Phosphoglycerides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P9/00—Preparation of organic compounds containing a metal or atom other than H, N, C, O, S or halogen
Definitions
- This invention relates to a lipase-catalyzed introduction of 1,3-functionality into glycerol and its derivatives.
- 1,3-substituted glycerols are prepared by a synthetic route which involves regioselective esterification of glycerol or a
- diglycerides are becoming increasingly important as low calorie fatty materials. They can also be used to make specific triglycerides. Regiospecific triglycerides are important for making cocoa butter substitutes, low calorie fats and other tailored triglycerides. Esterification of glycerol with fatty acids using both chemical and enzymic (upases) catalysts is difficult to control and frequently mixtures of monoglycerides and diglycerides are formed. Being hydrolytic enzymes, upases require anhydrous conditions when used as the esterification catalysts. Otherwise, the reaction equilibrium will be driven towards hydrolysis.
- acylating reagent acid or ester
- reaction products such as water or alcohol
- Another method involves irreversible esterification with active esters. Large excesses of the acylating reagents can be thus avoided but active esters are expensive.
- Regiospecific diglycerides i.e., 1,3 diglycerides, are important not only for preparing regiospecific triglycerides but, as compounds in their own right. Derivatives of monoglycerides are important in the food and drug industry.
- Such derivatives include l-alkyl-3-acyl glycerol, l-lysophospholipid-3-acyl glycerol, glycerol glucolipids and l-alkoxy-3-acyl glycerols. Lysophosolipids are used in foods and cosmetics.
- BACKGROUND ART European Patent Application 126.416 (Asahi Denka Ko ⁇ vo. 1984 ) describes a continuous transesterification of fat or oil using lipase enzymes.
- the lipase has 1,3-specificity and is fixed on a porous solid or Chitosan derivative as a carrier.
- Preferably alcohols are added during the reaction.
- the most preferred alcohols are aliphatic alcohols having 4-18 carbons.
- the pre ⁇ ferred are butyl, hexyl, octyl and decyl alcohols.
- the level of alcohol is 50-90 mol% of the free fatty acid estimated to be produced.
- the level of water s controlled so that
- 1,2-diglycerides are formed. Fatty acid is then added to make triglycerides.
- the water activity of the reaction mixture is from 0.5 to 0.9.
- Japanese 62,061.591 (assigned Kao, 1985) describes an interesterification reaction using an enzyme in the presence of water, dihydric or trihydric alcohol (glycol or glycerol).
- the enzyme used is obtained by adding a water-insoluble carrier to a lipase containing medium which is then dried.
- Japanese 61,173,791 (assigned Kao, 1986) describes a method for non-specifically hydrolyzing oils using lipase in which the aqueous phase contained from 10% to 40% glycerol. After hydroly ⁇ sis an oily layer, an emulsion and an aqueous layer are formed. The emulsion layer is recovered and reused.
- Japanese 62.278.988 (assigned Kao, 1987) discloses an enzymic or microbial reaction. Two phases are prepared, a non-aqueous solution and an aqueous solution. The reaction occurs at the interface of these two phases.
- 1,2,3-Triacyl glycerides can be prepared by reacting the 1,3-disubstituted glycerides with an acid anhydride or an acid chloride under anhydrous conditions in the presence of a chemical catalyst, e.g., 4-N,N-dimethylaminopyridine or an enzymic cata ⁇ lyst.
- a chemical catalyst e.g., 4-N,N-dimethylaminopyridine or an enzymic cata ⁇ lyst.
- R stands for an alkyl saturated or unsaturated fatty acid acyl group having from 1 to 22 carbons; R" can be equal to R or be an alkyl group having from 1 to 22 carbon atoms, a carbohydrate moiety, preferably glucose, fructose, sucrose or maltose, a phosphate, a phosphonate or a sulfate.
- the alkyl fatty acids used herein preferably have from about 2 to about 24 carbon atoms, preferably, from 8 to 24 carbon atoms.
- the fatty acids can be either saturated or unsaturated.
- the unsaturated fatty acids can be mono-unsaturated or polyunsaturated fatty acids.
- the positions occupied by R and R" are the 1 and 3 positions.
- H l,3-diacylglyceride is meant a glycerol molecule esterified on the first and third carbon atoms with a medium or long chain fatty acid.
- the acids will be identical.
- medium chain fatty acid is meant a saturated fatty acid, unsaturated fatty acid, or mixture thereof, having 6 to 12 carbon atoms.
- medium chain fatty acid anhydride as used herein, is meant the dehydration product of two medium chain fatty acids.
- medium chain saturated fatty acid is meant C6 (caproic), Cs (caprylic), Cio (capric), C12 (lauric), or saturated fatty acids, or mixtures thereof.
- C7 and Cg satu- rated fatty acids are not commonly found, but they are not exclud ⁇ ed from the possible medium chain fatty acids.
- long chain fatty acid is meant a satu ⁇ rated fatty acid, unsaturated fatty acid, or mixture thereof, having 14 to 24 carbon atoms.
- long chain saturated fatty acid is meant C14 (myristic) and Cj6 (palmitic), Cis (stearic), C19 (nonadecylic), C20 (arachidic), C21 (heneicosanoic), C22 (behenic), C 3 (tricosanoic), or C24 (lignoceric) saturated fatty acids, or mixtures thereof.
- glycerol derivative is meant a monosubstituted glycerol, substituted at the primary alcohol (1 or 3) wherein the derivative is an alkyl ether, a carbohydrate bonded through a glycosidic linkage, a liphophosphate, or an alkyl phosphate.
- alkyl ether is meant an ether having the formula Rj-O- wherein Ri is an alkyl group having from 1 to 18 carbons.
- glycosidic sugar or “sugar glucoside” is meant a sugar which is bonded to the glycerol molecule through the acetal or ketal linkage, i.e. the first carbon of an aldehyde sugar or the second carbon of a ketone sugar.
- the preferred sugar glycosides or carbohydrate glycosides are those wherein the sugar moiety is glucose, fructose, maltose, sucrose, and tri- or tetrapolysaccharides of glucose.
- phospholipid herein is meant a phosphate derivative of glycerol wherein the phosphate is a phosphocholine or other amino phosphate derivative, or a phosphate.
- alkyl phosphate is meant a phosphate derivative of glycerol wherein at least one of the hydroxyl group is substituted with an alkyl group having from 1 to 22 carbon atoms. Preferably, both of the hydroxy groups of the phosphate are substituted with alkyl groups.
- 1,3-disubstituted derivatives of glycerol is meant that both of the primary alcohols of glycerol are derivatized, i.e. the 1 and 3 hydroxy groups are substituted.
- substituents must be an acyl group formed by esterifying the corresponding glycerol derivative with the fatty acid anhydride by the process herein.
- an alkyl ether glycerol moiety is reacted with a fatty acid anhydride to make a l-acyl-3-alkoxy glyceride.
- the term "comprising" means various compo ⁇ nents or steps can be conjointly employed in the present inven ⁇ tion.
- the term “comprising” encompasses the more restrictive terms “consisting essentially of” and “consisting of.”
- ESTERIFICATION OF GLYCERINE TO 1,3-DISUBSTITUTED GLYCERIDES The process herein is a lipase-catalyzed introduction of 1,3-functionality in glycerol and its derivatives where one of the substituents is an acyl group.
- These 1,3-disubstituted glycerols are prepared by a synthetic route which involves regioselective esterification of glycerol or l(3)-monoderivatives of glycerol with fatty acid anhydrides in the presence of 1,3-specific lipase. This reaction can be followed by acylation of the remaining free hydroxy group to obtain specific trisubstituted glycerol com- pounds.
- Esterification of glycerol to form a 1,3-disubstituted glyceride is carried out in a single phase mixture of hydrocarbon or chlorinated hydrocarbon and the starting glycerol or its derivatives, fatty acid anhydride and a 1,3-specific lipase. Any 1,3-specific lipase can be used for the esterification.
- the upases derived from the species aspergillus and rhizopus can be used. Specific Upases include those derived from aspergillus oryzae, aspergillus niger, mucor javanicus, mucor miehei, pancreatic, rhizopus delamar, rhizopus japonicus.
- the amount of enzyme used is the amount of enzyme neces ⁇ sary to catalyze the reaction at a reasonable rate under low water conditions. Too slow a rate will prolong the reaction time.
- the preferred form of the enzyme is an immobilized enzyme (lipozyme) or other form which has enhanced reactivity and stability in an organic solvent.
- the enzyme concentration depends upon the amount of active protein in the enzyme preparation. Enzyme can be dried, immobil- ized on a resin or covalently bonded to or absorbed on a support, or be in solution. The concentration needed to esterify the glycerol depends upon the form, the type and the activity of the enzyme. The amount required is a catalytic amount. A catalytic amount is enough to esterify glycerol or its derivative to a 1,3-disubstituted glyceride at a reasonable rate but not so much as to force the reaction to form triglycerides. One skilled in the art can easily determine the catalytic amount by running a small scale reaction and looking at the final products.
- the requisite alkyl fatty acid anhydride is dissolved in the water insoluble hydrocarbon, methylene chloride or other chlori ⁇ nated hydrocarbon.
- Any water immiscible hydrocarbon solvent which is essentially inert to the lipase can be used. Some solvents can denature enzymes.
- the glycerol or glycerol derivative must be solubilized sufficiently by the solvent so that the reaction can proceed.
- the hydrocarbon can be an alkane with from 5 to 10 carbons, an aromat ⁇ ic hydrocarbon such as benzene, toluene or xylene or halogenated hydrocarbons such as chloroform, methylene chloride or carbon tetrachloride.
- the preferred hydrocarbon solvents are hexane, pentane, petroleum ether and isooctane.
- the preferred chlorinated hydrocarbon is methylene chloride.
- Any acid anhydride can be used to esterify the glycerol or its derivatives.
- Acid anhydrides of fatty acids are commercially available or can be synthesized by conventional means.
- the preferred fatty acids anhydrides have C4 to C24 carbons.
- the long chain fatty acids p_er sje or naturally occurring fats and oils can serve as sources of the long chain saturated fatty acids.
- soybean oil and high erucic acid rapeseed oil hydrogenated to an I.V. of about 10 or less are good sources of stearic and behenic fatty acids, respectively.
- Odd chain length long chain fatty acids can be derived from certain marine oils.
- the fatty acids can be derived from plants, animals or from synthetic fats or oils.
- Liquid oils, e.g., unsaturated vegetable oils, can also be used as precursors for the fatty acids. These acids can be partially hydrogenated to convert some of the unsatu ⁇ rated double bonds of the fatty acid constituents into saturated bonds.
- Preferred acids are hexanoic, octanoic, decanoic, lauric, palmitic, stearic and behenic acids.
- Preferred unsaturated fatty acids include oleic acids. Long chain saturated fatty acids have frequently low solubility in the hydrocarbon solvent. Therefore they are not preferred for use herein.
- the mole ratio of acid anhydride to glycerol or glycerol derivatives is from about 1:1 to about 3:1 anhydride to glycerol. Too large an excess of anhydride may cause formation of triglycerides instead of the 1,3-diacylglyceride or 1,3-disubstituted glyceride.
- the reaction mixture has the following proportions by weight percent:
- 1,3-diacylglycerides can be isolated from the organic phase by crystallization or evaporation of the organic solvent. Liquid 1,3-diacylglycerides can be purified by distillation under con ⁇ trolled conditions since distillation frequently causes rear ⁇ rangement or isomerization to 1,2-diacylglycerides. The l(3)-substituted-3(l)-acylglycerides can be isolated by crystallization or evaporation of the solvent. The exact method of purifying them will depend upon the properties of the glycerol derivative.
- 1,3-Diacylglycerides or l(3)-substituted-3(l)-acylglycerols can be further esterified to trisubstituted glycerols by any conventional esterification reaction.
- Such techniques include esterification with acid chlorides or acid anhydrides under essentially anhydrous conditions (0.5% or less water).
- esterification with a fatty acid anhydrides in the pres- ence of 0.3% to about 1% (mole weight basis) of 4 -N,N-dimethyl- aminopyridine can be used to make stereospecific triglycerides from 1,3-diacylglycerides or 1,3-substituted acylglycerols.
- Catalysts which are known to induce rearrangement should be avoided as they will cause the disubstituted or trisubstituted glycerols to rearrange, thus producing a mixture of materials and not the desired specifically trisubstituted glycerols.
- the purified mixture of trisubstituted glycerols can also be subjected to bleaching and deodorizing steps for color and fla ⁇ vor/aroma improvement using conventional techniques well known in the fats and oils art.
- the reaction mixture can be bleached using conventional bleaching earth and/or activated carbon prior to purification.
- the triglycerides can be hydrogenated, before or after purification, to convert the unsaturated fatty acid residues to saturated fatty acid residues.
- Triglycerides of the type MML/MLM obtained according to the present invention can be used as reduced calorie fats to partially or totally replace normal triglyceride fat in any fat-containing food composition comprising fat and nonfat ingredients to provide reduced calorie benefits.
- L is a long chain saturated fatty acid residue
- M is a medium chain saturated fatty acid residue
- Triglycerides of the type MML/MLM obtained according to the present invention can be used as reduced calorie fats to partially or totally replace normal triglyceride fat in any fat-containing food composition comprising fat and nonfat ingredients to provide reduced calorie benefits.
- 1,3-Didecanoyl-2-docosanoyl qlvcerol A solution of 1,3-didecanoyl glycerol (40.6 mmole, 16.25 g), docosanoic anhydride (40.6 mmole, 26.9 g) and 4-N,N-dimethylaminopyridine (DMAP) (12.2 mmole, 1.5 g) in methylene chloride (350 ml) is refluxed for 2 hours. On cooling the reaction mixture to 0°C, docosanoic acid and the remaining docosanoic anhydride precipitat ⁇ ed and was filtered. The filtrate is evaporated and dissolved in petroleum ether (500 ml). The product precipitated at -15°C is filtered and dried giving 24.5 g (83%) of l,3-didecanoyl-2-doco- sanoyl glycerol.
- DMAP 4-N,N-dimethylaminopyridine
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/670,540 US5137660A (en) | 1991-03-15 | 1991-03-15 | Regioselective synthesis of 1,3-disubstituted glycerides |
US670,540 | 1991-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992016639A1 true WO1992016639A1 (en) | 1992-10-01 |
Family
ID=24690809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/001849 WO1992016639A1 (en) | 1991-03-15 | 1992-03-05 | Regioselective synthesis of 1,3-disubstituted glycerides |
Country Status (4)
Country | Link |
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US (1) | US5137660A (en) |
EP (1) | EP0576556A1 (en) |
CA (1) | CA2106316A1 (en) |
WO (1) | WO1992016639A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007011150A1 (en) * | 2005-07-20 | 2007-01-25 | Enzychem Co., Ltd. | Preparation of glycerol derivatives and intermediates therefor |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5508182A (en) * | 1991-02-13 | 1996-04-16 | Schneider; Manfred P. | Esterification of hydrophilic polyols by adsorption onto a solid support and employing a substrate-immiscible solvent |
ATE154205T1 (en) * | 1993-04-23 | 1997-06-15 | Loders Croklaan Bv | NUTRITIONAL FATS WITH IMPROVED DIGESTIBILITY |
US5898086A (en) * | 1996-04-19 | 1999-04-27 | Henkel Corporation | Process for making alkyl ether glycerols |
US6268187B1 (en) * | 1997-07-24 | 2001-07-31 | Doosan Corporation | Process for preparing lysophospholipid using enzyme |
US20030054509A1 (en) * | 2001-04-06 | 2003-03-20 | Archer-Daniels-Midland Company | Method for producing fats or oils |
US7452702B2 (en) | 2003-07-16 | 2008-11-18 | Archer-Daniels-Midland Company | Method for producing fats or oils |
DE102004019472A1 (en) * | 2004-04-22 | 2005-11-17 | Bayer Healthcare Ag | phenylacetamides |
KR100966627B1 (en) * | 2006-06-14 | 2010-06-29 | 주식회사 대웅제약 | A process for preparation of L?glycerophosphoryl choline |
UA97127C2 (en) * | 2006-12-06 | 2012-01-10 | Бандж Ойлз, Инк. | Method and system for the enzymatic treatment of lipid containing feedstock |
CA2933001C (en) | 2016-06-10 | 2023-07-18 | Mark B. Frampton | Siloxane-containing phospholipids, compositions and uses thereof |
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- 1991-03-15 US US07/670,540 patent/US5137660A/en not_active Expired - Lifetime
-
1992
- 1992-03-05 WO PCT/US1992/001849 patent/WO1992016639A1/en not_active Application Discontinuation
- 1992-03-05 EP EP92908436A patent/EP0576556A1/en not_active Withdrawn
- 1992-03-05 CA CA002106316A patent/CA2106316A1/en not_active Abandoned
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Cited By (3)
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WO2007011150A1 (en) * | 2005-07-20 | 2007-01-25 | Enzychem Co., Ltd. | Preparation of glycerol derivatives and intermediates therefor |
US7868196B2 (en) * | 2005-07-20 | 2011-01-11 | Enzychem Co., Ltd. | Preparation of glycerol derivatives and intermediates therefor |
CN101223121B (en) * | 2005-07-20 | 2011-05-25 | 株式会社Enzychem | Preparation of glycerol derivatives and intermediates therefor |
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CA2106316A1 (en) | 1992-09-16 |
EP0576556A1 (en) | 1994-01-05 |
US5137660A (en) | 1992-08-11 |
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