EP3947346A1 - Procede de preparation d'un compose soufre ou selenie par reaction thiolene - Google Patents
Procede de preparation d'un compose soufre ou selenie par reaction thioleneInfo
- Publication number
- EP3947346A1 EP3947346A1 EP20714249.8A EP20714249A EP3947346A1 EP 3947346 A1 EP3947346 A1 EP 3947346A1 EP 20714249 A EP20714249 A EP 20714249A EP 3947346 A1 EP3947346 A1 EP 3947346A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- aryl
- compound
- chosen
- functions
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C315/00—Preparation of sulfones; Preparation of sulfoxides
- C07C315/04—Preparation of sulfones; Preparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C317/00—Sulfones; Sulfoxides
- C07C317/12—Sulfones; Sulfoxides having sulfone or sulfoxide groups bound to carbon atoms of rings other than six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C317/00—Sulfones; Sulfoxides
- C07C317/16—Sulfones; Sulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton
- C07C317/18—Sulfones; Sulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton with sulfone or sulfoxide groups bound to acyclic carbon atoms of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C317/00—Sulfones; Sulfoxides
- C07C317/44—Sulfones; Sulfoxides having sulfone or sulfoxide groups and carboxyl groups bound to the same carbon skeleton
- C07C317/46—Sulfones; Sulfoxides having sulfone or sulfoxide groups and carboxyl groups bound to the same carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
- C07C319/18—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by addition of thiols to unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/22—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of hydropolysulfides or polysulfides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/52—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Definitions
- the invention relates to a process for the preparation of a sulfur-containing or selenium compound of formula I
- X is selected from S, Se;
- R 1 is chosen from alkyl, aryl, alkylaryl and heteroaryl groups, optionally carrying one or more functions, said functions being chosen from
- the hydroxyl function and its derived functions such as the ether function, the carbonyl function such as the ketone and aldehyde functions, and its derived functions such as the hemiacetal and acetal functions, and
- R 2, R 3 and R 4 are selected, independently of each other, from H and alkyl, aryl and alkylaryl groups; or R 2 and R 4 together form a C5-C10 carbon ring;
- R 5 is chosen from H and alkyl, aryl and alkylaryl groups
- R 6 and R 7 are selected, independently of one another, from H, alkyl, aryl and alkylaryl groups, OR 8 and NR 8 R 9 where R8 and R9 are selected, independently of one another , from H and alkyl, aryl, alkylaryl and acyl groups;
- Rio is chosen from H, alkyl, aryl and alkylaryl groups, OR 1 1 and NR 11 R 12 where R 11 and R 12 are chosen, independently of one another, from H, alkyl, aryl, alkylaryl groups and acyl,
- R 10 is selected from CN, COR 13 , COOR 13 and CONR 13 R 14 , where R 13 and R 14 are independently selected from H and alkyl, aryl, alkylaryl and alkylaryl groups,
- R 10 represents CH 2 OR 15 where R 15 is chosen from H and alkyl, aryl, alkylaryl and acyl groups,
- n ' 0-24
- Y is chosen from O and NR 16 where R 16 is chosen from alkyl, aryl, alkylaryl, OR 1 4 or R 14 is as defined above
- Z is chosen from H, alkyl, aryl, alkylaryl, CN,
- COR 17 or R 17 is selected from H, alkyl, aryl, alkylaryl groups, from OR 18 and NR 18 R 19 or R 18 and R 19 are selected, independently of one another, from H and alkyl groups , aryl and arylalkyl, and from CH 2 OR 20 where R 20 is chosen from H and alkyl, aryl, alkylaryl and acyl groups,
- HMTBA 2-hydroxy-4-methylthio-butyric acid
- MHA 2-hydroxy-4-methylthio-butyric acid
- analogues such as its salts, its chelates, in particular the metal chelates (of Zn, Ca, Mn, Mg, Cu , Na ...), its esters, such as the isopropyl and tert-butyl esters of HMTBA, which are widely used in animal nutrition.
- the selenium derivatives of these methionine hydroxyalogues are also constituents of major interest in animal nutrition.
- the preparation of HMTBA is well known and can be carried out by various methods involving various synthetic intermediates, and in particular acrolein and methanethiol.
- 2-Hydroxy-4-methylseleno-butyric acid is also readily available by similar synthetic methods.
- the disadvantage of industrially exploited processes remains the production of considerable volumes of salts resulting from the neutralization allowing access to the final product, such as ammonium sulphate or sodium sulphate, the separation of which requires heavy purification treatments involving large quantities of solvent, and the recovery of which remains difficult.
- the present invention provides an alternative to the existing methods and also makes it possible to open up access to a large number of sulfur-containing or selenated compounds, the applications of which are of course not limited to animal nutrition.
- sulfur-containing or selenated compounds the applications of which are of course not limited to animal nutrition.
- such compounds could be used in multiple fields, namely in the composition and / or the preparation of surfactants, monomers, polymers, plasticizers, adhesives, coatings, lacquers, films, emulsifiers, antioxidants, antimicrobial agents, anticorrosive agents, packaging materials, consumer products, as well as in medical or agricultural applications.
- a compound of formula I above comprises the reaction of a compound of formula (IV)
- X is chosen from S and Se;
- Ri is as defined above for compound (I), that is to say that it is chosen from alkyl, aryl, alkylaryl and heteroaryl groups, optionally carrying one or more functions, said functions being chosen from
- the hydroxyl function and its derived functions such as the ether function, the carbonyl function such as the ketone and aldehyde functions, and its derived functions such as the hemiacetal and acetal functions, and the carboxylic acid function and its derivative functions such as the carboxylic acid ester functions;
- R21 represents H
- R21 is chosen from alkyl, aryl and alkylaryl groups. with a compound of formula (V):
- R2, R3, R4 and R5 are as defined above for the compound of formula (I), by irradiation with radiations with a wavelength of 200 to 800 nm in the presence of at least one carrier compound of at least one function chosen from alcohol, carboxylic acid, thioether and selenoether functions, said compound being represented by formula (VI),
- X ' chosen from S or Se
- p and t are independently of each other 0 or 1;
- q, r and s are, independently of each other, from 0 to 10;
- R 23 , R 24 , R 25 , R 26 and R 27 are, independently of each other, selected from H and alkyl, aryl and alkylaryl groups.
- alkyl denotes a saturated, linear or branched monovalent hydrocarbon radical having from 1 to 20 carbon atoms, advantageously from 1 to 6 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, n-hexyl, or a saturated cyclic monovalent hydrocarbon radical having from 3 to 20 carbon atoms, advantageously from 5 to 7 carbon atoms , such as cyclopentyl, cycloheptyl.
- aryl group is understood to mean a monovalent aromatic hydrocarbon radical comprising from 6 to 22 carbon atoms which can be functionalized by methoxy or ester groups, for example, as illustrated by the phenyl, naphthyl, anisole or alkylbenzoate groups where the alkyl term has the definition given above.
- alkylaryl means an aryl group comprising from 6 to 22 carbon atoms, said aryl group being substituted by at least one alkyl group corresponding to the definition above, as illustrated by the groups tolyl, mesityl, xylyl; This term is indifferently understood to mean an alkyl group corresponding to the above definition which is substituted by at least one aryl group corresponding to the above definition as illustrated by the benzyl, benzhydryl, phenethyl or trityl groups.
- heteroaryl defines a monovalent aromatic hydrocarbon radical comprising from 3 to 21 carbon atoms and at least one heteroatom such as O, N, as illustrated by the pyrrolyl, pyridyl, indolyl and furyl groups.
- acyl defines a monovalent radical RC (O) - in which R is an alkyl group as specified above.
- the compound of formula (VI) according to the invention is also called an additive.
- an additive according to the invention is a hydrocarbon compound which comprises at least a function chosen from thioether, selenoether, alcohol / primary hydroxyl, alcohol / secondary hydroxyl, alcohol / tertiary hydroxyl and carboxylic acid functions. It may comprise at least two or at least three of said functions, or even more, said functions being identical or different.
- the process can be carried out in the presence of a mixture of different compounds of formula (VI); in this variant, each of the compounds of formula (VI) can provide one or more of said functions.
- Formula (VI) is to be understood as covering the compounds for which, when q, r and / or s are greater than 1, then the substituents R 23 , R 24 , R 25 , R 26 and R 27 can generically represent the substituents R 23 ' , R 23 " , R 23'” ..., R 24 ' , R 24 " , R 24"' ..., R 25 ' , R 25 " , R25'” ..., R 26 ' , R 26 “ , R 26'” ..., and R 27 ' , R 27 " , R 27"' ..., respectively different; by way of example, a compound (VI) can be 4-methyl-1,2-butanediol.
- the process of the invention should be carried out in the presence of irradiation with radiation with a wavelength of 200 to 800 nm. This characteristic is essential. By comparing irradiation with wave radiation in the visible light spectrum and irradiation with UV radiation, with identical compounds involved, it is observed, although the reaction occurs in both situations, that its efficiency is significantly higher when the radiation is UV.
- the process of the invention is advantageously operated under radiation at a wavelength of 254 to 400 nm, ideally 365 nm + 20 nm.
- the exposure to radiation is continuous.
- LED light emitting diode
- the additive in the process according to the invention is a compound (VI) which comprises at least one function chosen from alcohol, carboxylic acid, thioether and selenoether functions; it can thus comprise 2 or more of said functions, these being identical or different.
- the method of the invention may involve several of said additives, the latter being respectively carrying one or more of said functions, which are identical or different.
- these will comprise the mixture of a compound carrying a thioether function or of a selenoether and a compound carrying a hydroxyl and / or carboxylic acid function.
- the compound (VI) is an ⁇ -hydroxy acid.
- the compound is chosen from alkyl sulphides such as methyl sulphide and ethyl sulphide, propionic acid, butanoic acid, lactic acid, 3-hydroxy-proprionic acid, 3-hydroxy-butyric acid, 6-hydroxycaproic acid, 3-methylthiopropanoic acid, 4-methylthiobutanol, 2,4-hydroxybutyric acid (2,4- DHB), 4-methylthio-2-hydroxybutyric acid (MHA) and methylthiobutanediol (MTBDO), these compounds can be used alone or as a mixture of 2, 3 or more.
- alkyl sulphides such as methyl sulphide and ethyl sulphide
- propionic acid butanoic acid
- butanoic acid lactic acid
- 3-hydroxy-proprionic acid 3-hydroxy-butyric acid
- 6-hydroxycaproic acid 3-methylthiopropanoic acid
- 4-methylthiobutanol 2,4-hydroxybutyric acid (2,4
- Compound (VI) is present in the reaction medium in a preferred amount of at least 0.1 eq, and better still of at least 0.2 eq, per 1 eq of compound (V).
- a significant gain in terms of selectivity of the reaction has in fact been observed as soon as the compound (VI) is present in the reaction medium, under the conditions of the invention defined above, even in small amounts. Up to an amount of about 0.5 eq of compound (VI), an increase in the reaction rate and in the selectivity is measured. An excess of the compound (VI), for example beyond 10 eq, and even beyond 5 eq, does not make it possible to increase the performance of the reaction and beyond this, a decrease in the yield of reaction. According to an optimal variant, the amount of compound (VI) is at least 0.5 eq and at most 2 eq, for 1 eq of compound (V).
- a compound (IV) can be chosen from any alkylthiol or alkylselenol, such as methanethiol, ethanethiol, n-butanethiol, tert-butanethiol, methaneselenol, as well as any alkylthiol or alkylselenol carrying one or more hydroxyl or carbonyl functions, carboxylic acid or carboxylic ester, such as thioglycolic acid.
- alkylthiol or alkylselenol such as methanethiol, ethanethiol, n-butanethiol, tert-butanethiol, methaneselenol
- alkylthiol or alkylselenol carrying one or more hydroxyl or carbonyl functions
- carboxylic acid or carboxylic ester such as thioglycolic acid.
- It can also consist of a disulfide or a diselenide, in particular any alkyl disulfide or diselenide, such as dimethyl or aryl disulfide, such as diphenyl disulfide and diphenyl diselenide.
- a disulfide or a diselenide in particular any alkyl disulfide or diselenide, such as dimethyl or aryl disulfide, such as diphenyl disulfide and diphenyl diselenide.
- the compound (IV) is preferably used in excess relative to the compound (V).
- the molar ratio of compound (IV) to compound (V) is generally of the order of 1.1-15: 1, or even 1.2-10: 1. This ratio depends essentially on compounds (IV) and (V) ) involved and it is within the competence of those skilled in the art to determine this. As an indication, if the compound (IV) is a sulphide or a selenide, the ratio of the compound (IV) to compound (V) is rather of the order of 1.1-2: 1; when the compound (IV) is a disulfide or a diselenide, the excess of compound (IV) is higher and this ratio is of the order of 5-10: 1.
- compound (V) comprises a carbon-carbon double bond with which compound (IV) will react according to the thiolene reaction.
- This reaction is known to those skilled in the art who will be able to select the compounds (IV) and (V) respectively, according to the desired compound (I), as well as according to the reactivity of the functions contained in the formula. of these compounds (IV) and (V) in this thiolene reaction. All the compounds (IV) and (V) capable of reacting by addition of thiolene are therefore applicable to the process of the invention.
- a compound (V) is chosen from butene, pentene, hexene, 2,3-dimethyl-butene, but-3-enoic acid, but-2 acid. -enoic, but-3-en-2-ol, butene-diol, cyclohexene, vinylglycolic acid (VGA), methyl vinylglycolate (MVG).
- VGA and MVG are compounds derived from biomass and therefore constitute a natural and abundant source of compound (V), giving the present invention another attraction for its use on an industrial scale.
- the process of the invention also has the advantage of being able to be carried out at a temperature close to room temperature. It was thus experimented that if a temperature of the order of 32 ° C. + 5 ° C. is optimal, its increase up to 50 ° C. results in a comparable kinetic profile, but a decrease in selectivity. Thus, the temperature range is between -10 and 100 ° C, and more particularly from 0 to 50 ° C and better still from 20 to 35 ° C.
- the reaction can be carried out in the presence of at least one photoinitiator, the latter having the effect, within the framework of the invention, of accelerating the reaction.
- at least one photoinitiator the latter having the effect, within the framework of the invention, of accelerating the reaction.
- This will be chosen from type I or II photoinitiators and more advantageously from type II photoinitiators.
- DMPA 2,2-dimethoxy-2-phenylacetophenone
- type II photoinitiator thioxanthone and its derivatives such as 1-chloro -4-hydroxy-thioxanthone, 1-chloro-4-propoxy-thioxanthone, or benzophenone and its derivatives, in particular those chosen from 3-alkyl-benzophenone and 4-alkyl-benzophenone, for example 3-methylbenzophenone.
- the / their quantity (s) is / are that (s) conventionally used and belonging to the general knowledge of a person skilled in the art.
- Another advantage of the invention lies in the fact that it can be carried out in the absence of any solvent.
- the present invention extends to any process in which a solvent would be used, for example to dilute the compound (VI) and then the solvent can be polar, protic or aprotic, and in particular chosen from methanol and acetonitrile.
- Example 1 Synthesis of (n-butylthio) -cyclohexane in the presence of different additives according to the invention and comparison with the synthesis of the same compound without additive
- Cyclohexene (500 mg), butanethiol (1.5 eq) and the additive (0.5 eq) are introduced successively in a 20 mL mini reactor fitted with a magnetic bar.
- the mixture is irradiated with an LED (365 nm) at 32 ° C for 30 minutes.
- the performance of the reaction is calculated by 1 H NMR assay (vs 3,5-dimethylanisole used as internal standard and counted at 99%) and are illustrated in Table 1 below.
- Example 2 Synthesis of (n-butylthio) -2-butanol in the presence of different additives according to the invention and comparison with the synthesis of the same compound without additive
- Example 4 Synthesis of the methyl ester of 4-methyl-lthio-2-hydroxy-butanoic acid in the presence of MHA as additive according to the invention and comparison with the synthesis of the same compound without additive
- Methyl 2-hydroxy-B-butenoate 500 mg
- dimethyldisulfide (10 eq) and the additive 0.5 eq
- the mixture is irradiated with an LED (365 nm) at 32 ° C for 2 hours.
- the performance of the reaction is calculated by 1 H NMR assay (vs 3.5-dimethylanisole used as internal standard and counted at 99%) and are illustrated in Table 5 below.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1903619A FR3094715B1 (fr) | 2019-04-04 | 2019-04-04 | Procede de preparation d’un compose soufre ou selenie par reaction thiolene |
PCT/EP2020/059380 WO2020201412A1 (fr) | 2019-04-04 | 2020-04-02 | Procede de preparation d'un compose soufre ou selenie par reaction thiolene |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3947346A1 true EP3947346A1 (fr) | 2022-02-09 |
Family
ID=67185488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20714249.8A Pending EP3947346A1 (fr) | 2019-04-04 | 2020-04-02 | Procede de preparation d'un compose soufre ou selenie par reaction thiolene |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3947346A1 (fr) |
JP (1) | JP2022527179A (fr) |
KR (1) | KR20210148229A (fr) |
CN (1) | CN113661159B (fr) |
FR (1) | FR3094715B1 (fr) |
SG (1) | SG11202111053TA (fr) |
TW (1) | TW202100509A (fr) |
WO (1) | WO2020201412A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2392294A (en) * | 1941-05-29 | 1946-01-01 | Shell Dev | Photochemical preparation of thio-ethers |
US3085955A (en) * | 1958-12-01 | 1963-04-16 | Phillips Petroleum Co | Production of sulfur compounds |
US5973200A (en) * | 1997-01-23 | 1999-10-26 | Novus International, Inc. | Process for the preparation of 2-hydroxy-4-(methylthio) butanoic acid or methionine by mercaptan addition |
FR2823206B1 (fr) * | 2001-04-05 | 2004-02-20 | Atofina | Procede photochimique semi-continu et dispositif pour sa mise en oeuvre |
EP3452445A1 (fr) * | 2016-05-04 | 2019-03-13 | Evonik Degussa GmbH | Production de méthionine |
-
2019
- 2019-04-04 FR FR1903619A patent/FR3094715B1/fr active Active
-
2020
- 2020-04-02 JP JP2021557805A patent/JP2022527179A/ja active Pending
- 2020-04-02 WO PCT/EP2020/059380 patent/WO2020201412A1/fr active Application Filing
- 2020-04-02 EP EP20714249.8A patent/EP3947346A1/fr active Pending
- 2020-04-02 CN CN202080027064.4A patent/CN113661159B/zh active Active
- 2020-04-02 KR KR1020217034952A patent/KR20210148229A/ko unknown
- 2020-04-02 SG SG11202111053TA patent/SG11202111053TA/en unknown
- 2020-04-06 TW TW109111528A patent/TW202100509A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
SG11202111053TA (en) | 2021-11-29 |
FR3094715B1 (fr) | 2023-04-07 |
WO2020201412A1 (fr) | 2020-10-08 |
CN113661159A (zh) | 2021-11-16 |
CN113661159B (zh) | 2024-08-13 |
JP2022527179A (ja) | 2022-05-31 |
TW202100509A (zh) | 2021-01-01 |
FR3094715A1 (fr) | 2020-10-09 |
KR20210148229A (ko) | 2021-12-07 |
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