EP4126804A1 - Procede de fabrication de para-eugenol et/ou d'ortho-eugenol - Google Patents
Procede de fabrication de para-eugenol et/ou d'ortho-eugenolInfo
- Publication number
- EP4126804A1 EP4126804A1 EP21712547.5A EP21712547A EP4126804A1 EP 4126804 A1 EP4126804 A1 EP 4126804A1 EP 21712547 A EP21712547 A EP 21712547A EP 4126804 A1 EP4126804 A1 EP 4126804A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- eugenol
- ortho
- compound
- formula
- para
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- LREHGXOCZVBABG-UHFFFAOYSA-N 2-methoxy-6-prop-2-enylphenol Chemical compound COC1=CC=CC(CC=C)=C1O LREHGXOCZVBABG-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000005770 Eugenol Substances 0.000 title claims abstract description 53
- 229960002217 eugenol Drugs 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 32
- 150000001875 compounds Chemical class 0.000 claims abstract description 77
- 238000007275 deallylation reaction Methods 0.000 claims abstract description 12
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 claims description 91
- 229960001867 guaiacol Drugs 0.000 claims description 45
- 239000000203 mixture Substances 0.000 claims description 41
- 239000002904 solvent Substances 0.000 claims description 38
- 238000005937 allylation reaction Methods 0.000 claims description 25
- 239000003054 catalyst Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- -1 allyl halide Chemical class 0.000 claims description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 4
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Chemical compound [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 239000011877 solvent mixture Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 description 24
- 238000006243 chemical reaction Methods 0.000 description 18
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 description 12
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 description 12
- 239000004215 Carbon black (E152) Substances 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 150000001335 aliphatic alkanes Chemical class 0.000 description 9
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 150000002430 hydrocarbons Chemical group 0.000 description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 238000004821 distillation Methods 0.000 description 7
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- OSDWBNJEKMUWAV-UHFFFAOYSA-N Allyl chloride Chemical compound ClCC=C OSDWBNJEKMUWAV-UHFFFAOYSA-N 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 2
- 229930003427 Vitamin E Natural products 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000004250 tert-Butylhydroquinone Substances 0.000 description 2
- 235000019281 tert-butylhydroquinone Nutrition 0.000 description 2
- 239000012720 thermal barrier coating Substances 0.000 description 2
- 235000019165 vitamin E Nutrition 0.000 description 2
- 229940046009 vitamin E Drugs 0.000 description 2
- 239000011709 vitamin E Substances 0.000 description 2
- KWRBXILMRLLABD-UHFFFAOYSA-N 1-methoxy-2-prop-2-enoxybenzene Chemical compound COC1=CC=CC=C1OCC=C KWRBXILMRLLABD-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004255 Butylated hydroxyanisole Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000001986 bile esculin agar Substances 0.000 description 1
- 235000019282 butylated hydroxyanisole Nutrition 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000010634 clove oil Substances 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003586 protic polar solvent Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- DQJCHOQLCLEDLL-UHFFFAOYSA-N tricyclazole Chemical compound CC1=CC=CC2=C1N1C=NN=C1S2 DQJCHOQLCLEDLL-UHFFFAOYSA-N 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
- C07C43/23—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing hydroxy or O-metal groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Definitions
- Eugenol is a major aromatic compound in many essential oils such as clove oil. Eugenol is frequently used in perfumery, but it also has antiseptic, antibacterial, analgesic and antioxidant properties.
- eugenol is of natural origin, extracted from plants.
- the extraction can in particular be carried out by hydro distillation, extraction assisted by microwave or extraction with a supercritical fluid.
- Naturally occurring eugenol is generally found under form of a composition comprising a mixture of para-eugenol and ortho-eugenol in a ratio of 99: 1 (para: ortho).
- the process according to the present invention allows the efficient manufacture of para-eugenol and / or ortho-eugenol from said O-allylation compounds.
- the present invention is aimed at an efficient and improved process for the manufacture of para-eugenol and / or ortho-eugenol, in particular a process allowing the transformation of O-allylation compounds into para-eugenol and / or ortho-eugenol, on the scale industrial, efficient, in particular with improved yields.
- ortho-eugenol refers to 2-allyl-6-methoxyphenol according to formula (nb):
- the term “dealllylation” refers to a reaction allowing the cleavage of a covalent bond between a substrate and an allyl group.
- the deallation reaction allows the conversion of a compound of formula (I) into a compound of formula ( ⁇ ) according to the following scheme: in which R 1 and R a have the same meaning as above.
- the deallylation reaction allows the cleavage of a covalent bond between a carbon atom and an oxygen atom.
- the deallization reaction allows the cleavage of an ether bond, in the absence of deallisation of an allyl group attached to a substrate by a covalent bond between two carbon atoms.
- the dealllylation reaction of a compound of formula (Ia) allows the formation of a compound of formula (IIa), preferably in the absence of formation of guaiacol. or guaiacol allyl ether.
- the process according to the present invention comprises a step of deallylation of a compound of formula (Ia).
- the process according to the present invention comprises a step of deallylation of a compound of formula (Ib).
- the process according to the present invention allows the formation of a compound of formula (Hb).
- the method according to the present invention comprises a step of deallylation of a mixture comprising at least one compound of formula (Ia) and one compound of formula (Ib).
- the process according to the present invention allows the formation of a mixture comprising at least one compound of formula (Ha) and one compound of formula (Hb).
- the process according to the present invention is carried out on a composition comprising at least 0.1% by weight of compound of formula (I), preferably at least 0.5% by weight, even more preferably at least 1% by weight, even more preferably at least 2% by weight.
- the process according to the present invention is carried out on a composition comprising up to 98% by weight of compound of formula (I), preferably up to 95% by weight, even more preferably up to 90% by weight .
- the composition used in the deallation reaction can comprise 10, 20, 30, 40, 50, 60, 70, 80% by weight of compound of formula (I).
- the process according to the present invention can be carried out on a compound of formula (I) alone or as a mixture.
- the process according to the present invention can be carried out on a composition comprising at least one compound of formula (I).
- the process according to the present invention can be carried out on a composition comprising at least two compounds of formula (I), in particular a compound of formula (Ia) and a compound of formula (Ib).
- composition can also include a compound of formula ( ⁇ ).
- the deallation process according to the present invention also allows the formation of guaiacol by deallization of the compound of formula ( ⁇ II)
- the process according to the present invention can also be carried out on a composition comprising at least two compounds of formula (I), in particular a compound of formula (Ia) and a compound of formula (Ib) and the compound of formula ( ⁇ ).
- the process can be carried out on a composition further comprising para-eugenol, ortho-eugenol and / or gaiacol.
- step (i) is carried out in the presence of a catalyst.
- the catalyst is a catalyst based on platinum, rhodium, iridium, copper, nickel, aluminum, titanium, iron or palladium, preferably the catalyst is based on platinum or palladium.
- step (i) is carried out in the presence of Pd / C or of Pt / C.
- the amount of catalyst used in step (i) is less than or equal to 30% by weight relative to the total amount of compound of formula (I) and, optionally ( ⁇ ), preferably less than or equal to 25% by weight, very preferably less than or equal to 20% by weight.
- the amount of catalyst used in step (i) is greater than or equal to 0.1% by weight relative to the total amount of compound of formula (I) and, optionally ( ⁇ ).
- the amount of catalyst used in step (i) is greater than or equal to 0.5% by weight relative to the total amount of compound of formula (I) and, optionally ( ⁇ ), preferably greater than or equal 0.5% by weight, very preferably greater than or equal to 1% by weight and very preferably greater than or equal to 2% by weight.
- step (i) is carried out in the presence of a solvent or of a water / solvent mixture.
- the solvent is a polar, protic solvent.
- the solvent can be an alcohol, preferably chosen from MeOH, EtOH, i-PrOH, BuOH.
- step (i) can be carried out in the presence of a water / solvent mixture, preferably the solvent / water weight ratio is between 10: 1 and 1: 1, preferably between 8: 1 and 3: 1, and very preferably between 6: 1 and 4: 1.
- step (i) is carried out in the presence of a base, preferably the pKa in water is greater than or equal to 8, preferably greater than or equal to 9, very preferably greater than or equal to 10
- the base can be selected from the group consisting of KOH, NaOH, K2CO3, NaaCOs, Ba (OH) 2, Ca (OH) 2, CsOH, LiOH or a compound of formula NR3OH, in which R is an alkyl chain, linear or branched comprising from 1 to 6 carbon atoms.
- step (i) is carried out in the presence of a strong base.
- step (i) is carried out in the presence of KOH, NaOH, Ba (OH) 2, Ca (OH) 2.
- the base content in step (i) is greater than or equal to 5% by weight relative to the amount of solvent used, preferably greater than or equal to 8% by weight. According to the present invention, the base content in step (i) is less than or equal to 15% by weight relative to the amount of solvent used, preferably less than or equal to 10% by weight. According to the present invention, step (i) can be carried out at a temperature greater than or equal to 20 ° C, preferably greater than or equal to 30 ° C, preferably greater than or equal to 40 ° C, very preferably greater than or equal to at 50 ° C.
- step (i) can be carried out at a temperature less than or equal to 100 ° C, preferably less than or equal to 85 ° C, very preferably less than or equal to 70 ° C.
- step (i) can be carried out at 65 ° C.
- the heating is maintained for a period ranging from 2 hours to 24 hours.
- step (i) is generally carried out at atmospheric pressure.
- Step (i) can also be carried out in an autoclave, preferably the reaction is carried out at a pressure greater than or equal to atmospheric pressure, preferably greater than or equal to 2 bar, very preferably greater than or equal to 5 bar.
- the reaction is carried out at a pressure less than or equal to 50 bars, preferably less than or equal to 20 bars, very preferably less than or equal to 10 bars.
- the degree of conversion of the compound of formula (I) into compound of formula ( ⁇ ) is greater than or equal to 60%, preferably greater than or equal to 75%, very preferably greater than 85%, and even more preferably greater than 95 %.
- the process according to the present invention is carried out on a composition comprising at least one compound of formula (I) resulting from a process for allylation of guaiacol in the presence of an allyl halide or of an alcohol. allylic. Allylation of guaiacol
- the process for allylation of guaiacol in the presence of an allyl halide can be carried out under the conditions as described in document FR 2302991 or in document CN 105294409. According to another aspect, the process for allylation of guaiacol in presence of an allylic alcohol can be carried out under conditions as described in J. Mol CatA. Chemical, 2006, 244, 124-138.
- the guaiacol is reacted with an allyl halide, preferably allyl chloride as described in document FR 2302991.
- This reaction allows the formation of at least one compound of formula (I ), in particular of formula (Ia), (Ib) and (M).
- This reaction also allows the formation of para-eugenol, orthoeugenol.
- the alkylation reaction is carried out in the presence of an aqueous solution of an alkali metal, or of an alkaline earth metal hydroxide, such as NaOH or KOH.
- reaction can be carried out in the presence of a catalyst, in particular a copper-based catalyst such as CuCl, CUCI2.2H2O, Cu (NÜ3) 2, Cu (0Ac) 2 .2H 2 0.
- a catalyst in particular a copper-based catalyst such as CuCl, CUCI2.2H2O, Cu (NÜ3) 2, Cu (0Ac) 2 .2H 2 0.
- the reaction can also be carried out. carried out in the presence of a composite catalyst based on copper and cobalt as described in patent application CN 105294409.
- the amount of catalyst is greater than or equal to 0.01% by weight, preferably greater than or equal to 0.02% by weight, more preferably greater than or equal to 0.05% by weight, and very preferably greater than or equal to 0.1% by weight relative to the amount of guaiacol.
- the amount of catalyst is less than or equal to 10% by weight, preferably less than or equal to 5% by weight, more preferably less than or equal to 2% by weight, and very preferably greater than or equal to 1% by weight relative to to the amount of guaiacol.
- reaction temperature is greater than or equal to 5 ° C, preferably greater than or equal to 10 ° C, more preferably greater than or equal to 15 ° C and very preferably greater than or equal to 25 ° C.
- reaction temperature is less than or equal to 95 ° C, preferably less than or equal to 80 ° C, more preferably less than or equal to 65 ° C and very preferably less than or equal to 50 °.
- the reaction is generally carried out in the presence of an ammonium or ammonia salt as described in document FR 2302991.
- the ammonia can form, with the catalyst, a copper-amine type complex.
- a guaiacol salt is formed in aqueous solution.
- the catalyst is added to the reaction mixture followed by the addition of aqueous ammonia solution, finally the allyl halide is added to the reaction mixture.
- the allylation reaction can be a step prior to step (i) according to the present invention.
- the process for manufacturing para-eugenol and / or ortho-eugenol according to the present invention is carried out on a composition resulting from an allylation reaction of guaiacol, only compounds of formula (I) and / or ( ⁇ ) are converted into compounds of formula ( ⁇ ) and / or guaiacol, respectively.
- the composition of the mixture comprises para- eugenol, and / or ortho-eugenol and / or guaiacol.
- purification is facilitated.
- Guaiacol can also be recycled.
- the pH of the composition resulting from an allylation reaction of guaiacol can be adjusted, preferably the pH is less than or equal to 8.5, preferably less than or equal to 8.
- the composition resulting from an allylation reaction of guaiacol can be the organic phase obtained at the end of the allylation reaction, with optional adjustment of the pH.
- the composition comprises at least one compound chosen from compound of formula (Ia), compound of formula (Ib), compound of formula ( ⁇ ), guaiacol, para-eugenol and ortho-eugenol.
- the composition obtained comprises at least one compound chosen from para-eugenol, ortho-eugenol and guaiacol.
- the guaiacol is distilled.
- the guaiacol can be recycled into the guaiacol allylation reaction.
- the ortho- and para-eugenol compounds can then be separated by distillation.
- the distillation can be carried out in the presence of at least one antioxidant, such as vitamin E, BHA, BHT, TBHQ, TBC.
- the composition resulting from an allylation reaction of guaiacol can be the organic phase obtained at the end of the allylation reaction, with optional adjustment of the pH.
- the composition comprises at least one compound chosen from compound of formula (Ia), compound of formula (Ib), compound of formula ( ⁇ ), gaiacol, para-eugenol and ortho-eugenol.
- Said composition is subjected to step (i) as described above
- the composition obtained comprises at least one compound chosen from para-eugenol, ortho-eugenol and guaiacol.
- the guaiacol is distilled.
- the guaiacol can be recycled into the guaiacol allylation reaction.
- the ortho- and para-eugenol compounds can then be separated by selective salification.
- the ortho- and para-eugenol compounds are diluted in a solvent not exhibiting an acidic character capable of reacting with K 2 CO 3, preferably the solvent has a pKa in water less than or equal to 8.5, preferably less or equal to 8.
- the solvent is a hydrocarbon solvent from the family of cyclic or acyclic alkanes.
- the hydrocarbon solvent of the alkane family is an alkane comprising from 5 to 15 carbon atoms
- the hydrocarbon solvent of the alkane family is preferably chosen from the group consisting of pentane, hexane, heptane, octane, nonane, cyclohexane.
- K2CO3 is added to this solution.
- the mixture is then filtered.
- the ortho-eugenol is recovered in the filtrate, preferably by evaporation of the solvent.
- Para-eugenol is obtained in the cake in salified form and can be recovered by acidification.
- the composition resulting from an allylation reaction of guaiacol can be the organic phase obtained at the end of the allylation reaction, with optional adjustment of the pH.
- the composition comprises at least one compound chosen from compound of formula (Ia), compound of formula (Ib), compound of formula ( ⁇ ), guaiacol, para-eugenol and ortho-eugenol. Said composition is subjected to a step (i) as described above
- the composition obtained comprises at least one compound chosen from para-eugenol, ortho-eugenol and guaiacol.
- the ortho- and para-eugenol compounds can then be separated by selective salification.
- the dealylation solvent can be evaporated beforehand.
- the ortho- and para-eugenol compounds are diluted in a solvent not exhibiting an acidic character capable of reacting with K2CO3, preferably the solvent has a pKa in water less than or equal to 8.5, preferably less than or equal to 8.
- the solvent is a hydrocarbon solvent from the family of cyclic or acyclic alkanes.
- the hydrocarbon solvent of the alkane family is an alkane comprising from 5 to 15 carbon atoms, preferably the hydrocarbon solvent of the alkane family is chosen from the group consisting of pentane, hexane, heptane, octane, nonane, cyclohexane.
- K2CO3 is added to this solution.
- the mixture is then filtered.
- the ortho-eugenol is recovered in the filtrate, preferably by evaporation of the solvent.
- the cake comprises at least one of para-eugenol and guaiacol in salified form and can be recovered by acidification. After acidification, the guaiacol and the para-eugenol can be separated by distillation.
- the organic phase obtained at the end of the allylation reaction can undergo a selective salification pretreatment.
- the organic phase is diluted in a solvent not exhibiting an acidic character capable of reacting with K2CO3, preferably the solvent has a pKa in water less than or equal to 8.5, preferably less than or equal to 8.
- the solvent is a hydrocarbon solvent from the family of cyclic or acyclic alkanes.
- the hydrocarbon solvent of the alkane family is a alkane comprising from 5 to 15 carbon atoms, preferably the hydrocarbon solvent of the alkane family is chosen from the group consisting of pentane, hexane, heptane, octane, nonane, cyclohexane.
- K 2 CO 3 is added to this solution.
- the mixture is then filtered, and step (i) can be carried out on the filtrate.
- the solvent is generally distilled beforehand.
- the filtrate comprises at least compound selected from compound of formula (Ia), compound of formula (Ib), compound of formula ( ⁇ ), and ortho-eugenol.
- the content of para-eugenol and guaiacol in the filtrate, after distillation of the solvent is less than or equal to 1% by weight relative to the total weight of the filtrate
- the composition comprises at least one compound selected from paraeugenol, ortho-eugenol and guaiacol.
- Guaiacol can be distilled and can be recycled to the guaiacol allylation reaction.
- the ortho- and para-eugenol compounds can then be separated by distillation.
- the distillation can be carried out in the presence of at least one antioxidant, such as vitamin E, BEA, BHT, TBHQ, TBC.
- the overall yield of the synthesis of para-eugenol and / or ortho eugenol comprising:
- step (i) of deallylation according to the present invention can be improved by recycling the guaiacol.
- Example 1 The compound of formula (Ia) (250 mg, 1.22 mmol) is dissolved in KOH (10% by weight in methanol, 25 mL). Pd / C (10% by weight, 50 mg) is added. The mixture is heated at 65 ° C for 3 hours.
- the degree of conversion of the compound of formula (Ia) into para-eugenol is 95%. No formation of guaiacol was observed.
- Example 2 A reaction mixture resulting from an allylation reaction as described according to application FR 2302991 comprising a compound of formula (Ia), a compound of formula (Ib), a compound of formula ( ⁇ ), para- eugenol, ortho-eugenol and guaiacol (253 mg) is dissolved in KOH (10% by weight in methanol, 25 mL). Pd / C (10% by weight, 13 mg). After 3 hours of reaction at 65 ° C., the reaction mixture is analyzed and comprises paraeugenol, ortho-eugenol and guaiacol.
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Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2002806A FR3108327B1 (fr) | 2020-03-23 | 2020-03-23 | Procédé de fabrication de para-eugénol et/ou d’ortho-eugénol |
PCT/EP2021/057198 WO2021191113A1 (fr) | 2020-03-23 | 2021-03-22 | Procede de fabrication de para-eugenol et/ou d'ortho-eugenol |
Publications (1)
Publication Number | Publication Date |
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EP4126804A1 true EP4126804A1 (fr) | 2023-02-08 |
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ID=70738730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21712547.5A Pending EP4126804A1 (fr) | 2020-03-23 | 2021-03-22 | Procede de fabrication de para-eugenol et/ou d'ortho-eugenol |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230118184A1 (fr) |
EP (1) | EP4126804A1 (fr) |
CN (1) | CN115697951A (fr) |
FR (1) | FR3108327B1 (fr) |
WO (1) | WO2021191113A1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929904A (en) * | 1974-04-17 | 1975-12-30 | Rhodia | Process for the selective allylation of ortho alkoxy phenols |
FR2302991A1 (fr) | 1975-03-07 | 1976-10-01 | Ube Industries | Procede pour la preparation d'ortho-alcoxy-para-allylphenols |
US4048236A (en) * | 1975-03-07 | 1977-09-13 | Ube Industries, Ltd. | Process for preparing o-alkoxy-p-allylphenols |
CN105294409B (zh) | 2015-09-15 | 2019-11-05 | 重庆欣欣向荣精细化工有限公司 | 一种丁香酚合成方法 |
-
2020
- 2020-03-23 FR FR2002806A patent/FR3108327B1/fr active Active
-
2021
- 2021-03-22 WO PCT/EP2021/057198 patent/WO2021191113A1/fr active Application Filing
- 2021-03-22 US US17/907,234 patent/US20230118184A1/en active Pending
- 2021-03-22 EP EP21712547.5A patent/EP4126804A1/fr active Pending
- 2021-03-22 CN CN202180037600.3A patent/CN115697951A/zh active Pending
Also Published As
Publication number | Publication date |
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WO2021191113A1 (fr) | 2021-09-30 |
FR3108327A1 (fr) | 2021-09-24 |
FR3108327B1 (fr) | 2023-05-19 |
CN115697951A (zh) | 2023-02-03 |
US20230118184A1 (en) | 2023-04-20 |
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