EP3765443A1 - Procede de preparation de s,s'-dialkyldithiocarbonate a partir de disulfure de dialkyle - Google Patents
Procede de preparation de s,s'-dialkyldithiocarbonate a partir de disulfure de dialkyleInfo
- Publication number
- EP3765443A1 EP3765443A1 EP19709511.0A EP19709511A EP3765443A1 EP 3765443 A1 EP3765443 A1 EP 3765443A1 EP 19709511 A EP19709511 A EP 19709511A EP 3765443 A1 EP3765443 A1 EP 3765443A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reaction
- catalyst
- diphenylphosphino
- bis
- mol
- 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
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/095—Sulfur, selenium, or tellurium compounds, e.g. thiols
- A61K31/10—Sulfides; Sulfoxides; Sulfones
-
- 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
- C07C329/00—Thiocarbonic acids; Halides, esters or anhydrides thereof
- C07C329/12—Dithiocarbonic acids; Derivatives thereof
- C07C329/14—Esters of dithiocarbonic acids
- C07C329/16—Esters of dithiocarbonic acids having sulfur atoms of dithiocarbonic groups bound to acyclic carbon atoms
Definitions
- the present invention relates to a process for preparing an ⁇ ,--dialkyldithiocarbonate from a dialkyl disulfide and a particular metal catalyst in the presence of carbon monoxide.
- the present invention also relates to the use of at least one S, N-dialkyldithiocarbonate as a reagent for the preparation of polycarbonates, urea and / or isocyanate compounds or compounds comprising at least one thioalkyl function.
- Carbonyl dichloride or phosgene, is a compound commonly used by the chemical industry, particularly for the synthesis of isocyanates and polycarbonates.
- At least one catalyst comprising at least one metal chosen from nickel, palladium, platinum, and
- the Applicant has notably found that the process according to the invention makes it possible to obtain S, N'-dialkyldithiocarbonate by carbonylation of at least one dialkyl disulphide, with a better yield than the processes of the prior art.
- the method according to the invention implements catalysts that are less toxic and can also be less expensive than those used in the processes of the prior art.
- any range of values designated by the expression "between a and b" represents the range from a to b (i.e., including the strict limits a and b).
- Step (a) of the preparation process according to the invention reacts at least one dialkyl disulphide.
- the dialkyl disulfide or disulfides may be symmetrical or asymmetrical.
- the two alkyl radicals of a dialkyl disulfide may be the same or different.
- dialkyl disulfide or disulfides are chosen from dialkyl disulfides of formula (I) below, and mixtures thereof:
- R 1 and R 2 which are identical or different, represent a linear or branched, C 1 -C 12 saturated hydrocarbon-based chain, more preferably C 1 -C 8 , still more preferably C 1 -C 4 ; optionally containing one or more heteroatoms, identical or different, preferably selected from O, N, and / or S.
- Ri and R 2 are identical.
- R 1 and R 2 are identical and represent a C 1 -C 4 hydrocarbon-based chain, such as a methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl or tert-butyl group.
- R 1 and R 2 each represent a methyl group.
- dialkyl disulfide or disulfides are chosen from dimethyl disulphide, diethyl disulphide, dipropyl disulphide and dibutyl disulphide, and mixtures thereof, more preferably from disulphide disulfide. dimethyl.
- dialkyl disulfide or disulfides that can be used in the process according to the invention can be a mixture of organic disulphides or DSO ("DiSulfide Oils" in English), particularly from gas or oil extraction fields.
- DSO DiSulfide Oils
- DSOs DiSulfide Oils
- mercaptans contained in petroleum fractions or liquefied gases by "Merox” type processes (see for example Catal. Sci Eng., 35 (4), (1993), 571-609).
- Step (a) of the preparation process according to the invention reacts at least one catalyst comprising at least one transition metal chosen from nickel, palladium and platinum.
- the catalyst or catalysts are in the form of pure metal or in the form of an organometallic complex.
- the catalyst or catalysts are in the form of an organometallic complex.
- the transition metal (s) are (are) covalently bound with one or more ligands.
- said ligand or ligands are chosen from triphenylphosphine, 1,2-bis (diphenylphosphino) ethane (or
- said phosphine ligand or ligands that may be used according to the invention, especially those chosen from triphenylphosphine, 1,2-bis (diphenylphosphino) ethane (or
- the sulfonation-treated phosphine ligand or ligands comprise at least one sulphonate function.
- the catalysts used in the process according to the invention may be soluble or insoluble in the dialkyl disulfide (s) used.
- the catalysts that can be used in the process according to the invention can also be in solid form supported on a porous support chosen from SiO 2 , Al 2 O 3 , TiO 2 , Al 2 O 3 / SiO 2 , ZrO 2 , zeolites, carbon materials, and mixtures thereof.
- the catalyst (s) that can be used in the process according to the invention are soluble in the dialkyl disulfide (s) used.
- the catalyst comprising at least one nickel atom is nickel tetracarbonyl.
- the catalyst comprising at least one palladium atom is tetrakis (triphenylphosphine) palladium.
- the catalyst or catalysts comprising at least one platinum atom are chosen from platinum in the form of pure metal, tetrakis (triphenylphosphine) platinum, and mixtures thereof.
- the catalyst or catalysts that can be used in the process according to the invention are chosen from nickel tetracarbonyl, tetrakis (triphenylphosphine) palladium, platinum in the form of pure metal, and tetrakis (triphenylphosphine). ) platinium, and mixtures thereof.
- the catalyst comprises palladium; more preferably the catalyst is tetrakis (triphenylphosphine) palladium.
- the catalyst or catalysts that can be used in the process according to the invention have a degree of oxidation 0, or a degree of oxidation of +2 or (II).
- the number of moles of catalyst (s) introduced into the reaction of step (a) is between 0.1 and 3 mol%, more preferably between 0.5 and 2.5 mol%, more preferably between 0.5 and 2 mol%, relative to total number of moles of dialkyl disulfide (s) introduced into the reaction of step (a).
- the number of moles of catalyst is calculated by dividing the weight of the catalyst measured by weighing by the molar mass of the catalyst.
- Step (a) of the preparation process according to the invention is carried out in the presence of carbon monoxide.
- the reaction according to step (a) of the process according to the invention is carried out under a total pressure of carbon monoxide of between 1 and 20 MPa, more preferably between 3 and 15 MPa, more preferably still between 4 and 8. MPa.
- Step (a) of the preparation process according to the invention may optionally comprise the addition to the reaction medium of at least one additional ligand.
- an additional ligand is an organic molecule which, once introduced into the reaction medium of the reaction of step (a), may optionally bind covalently to a metal or to an organometallic complex.
- the chemical structure of the additional ligand (s) may be identical to the chemical structure of the ligand (s) of the catalyst (s). It is also understood, within the meaning of the invention, that the additional ligand (s) are added to the reaction medium as reagents, distinct from the catalyst (s).
- the additional ligand or ligands are chosen from triphenylphosphine, 1, 2-bis (diphenylphosphino) ethane (or “dppe"), 1,5-bis (diphenylphosphino) pentane (or “dpentane”), 1 , 1'-bis (diphenylphosphino) ferrocene (or “dppf”), 1,3-diisopropylimidazolium tetrafluoroborate (or “IiPr + .BF 4 "), 1,4-bis (diphenylphosphino) butane (or “dppb”) ), carbon monoxide, and mixtures thereof.
- triphenylphosphine 1, 2-bis (diphenylphosphino) ethane (or “dppe"), 1,5-bis (diphenylphosphino) pentane (or “dpentane”), 1 , 1'-bis (diphenylphosphino)
- the number of moles of ligand (s) added (s) introduced is between 0, 1 and 6% molar, more preferably between 0.3 and 5 mol%, more preferably still between 0.5 and 4 mol%, relative to the total number of moles of dialkyl disulfide (s) introduced into the reaction of the step (at).
- a solvent or a mixture of solvents may optionally be used in the reaction according to step (a).
- the reaction according to step (a) can be carried out in the dialkyl disulfide (s), such as dimethyldisulphide (DMDS), which will act both as a solvent for the reaction and reagent.
- s dialkyl disulfide
- DMDS dimethyldisulphide
- the solvent or solvents may be chosen from aprotic solvents and / or protic solvents.
- step (a) of the process according to the invention uses toluene or 2-ethylhexyl acetate as solvent for the reaction.
- Step (a) according to the invention may be carried out at a temperature ranging from 70 to 200 ° C., preferably from 90 to 180 ° C., more preferably from 100 to 170 ° C., more preferably from 100 to 100 ° C. at 60 ° C.
- the duration of step (a) varies from a few minutes to several hours, preferably from 5 minutes to 72 hours, more preferably from 10 minutes to 60 hours, even more preferably from 10 minutes to 45 hours.
- the reaction can take place in tubular, multitubular, catalytically walled or fluidized bed micro-channel fixed bed reactors.
- the invention also relates to the use of at least one S, N'-dialkyldithiocarbonate obtained by a process as described above, as a reagent for the preparation of polycarbonates or compounds comprising at least one urea and / or isocyanate function.
- the invention relates to the use of at least one S, N'-dialkyldithiocarbonate obtained by a process as described above, as a reagent for the preparation of polycarbonates or compounds comprising at least one urea function and / or or isocyanate.
- the subject of the invention is also the use of at least one S, N'-dialkyldithiocarbonate obtained by a process as described above, as a reagent for the preparation of compounds comprising at least one thioalkyl function (ie a function - S-alkyl, preferably C 1 -C 6 ), more preferably a thiomethyl function (ie a -S-CH 3 function ).
- at least one thioalkyl function ie a function - S-alkyl, preferably C 1 -C 6
- a thiomethyl function ie a -S-CH 3 function
- the preparation of polycarbonates or compounds comprising at least one urea and / or isocyanate function according to the invention comprises:
- step 2) a second step of preparing polycarbonates or compounds comprising at least one urea and / or isocyanate function, from S, N'-dialkyldithiocarbonate obtained by step 1) of preparation.
- the second step described above for the preparation of compounds comprising at least one urea function from S, N'-dialkyldithiocarbonate may be identical to the preparations described in patent applications ITMI20042402, JP2007 / 191471 and WO2006.
- these prior preparations are made from S, N'-dialkyldithiocarbonate obtained by a process different from the process according to the invention.
- the preparation of compounds comprising at least one thioalkyl function, preferably thiomethyl, according to the invention comprises: 1) a first step of preparing at least one S, N'-dialkyldithiocarbonate according to the process of the invention as described above, and
- the second step described above for the preparation of compounds comprising at least one thioalkyl function from S, N'-dialkyldithiocarbonate may be identical to the preparation described in patent application EP 0 063 327, to the difference that this prior preparation is made from S, ⁇ -dialkyldithiocarbonate obtained by a different process of the method according to the invention.
- mercaptotriazines useful for example as herbicides, pesticides, in dyes, as pharmaceutical intermediates, oxidation inhibitors or additives for lubricants.
- the one or more S, 5-dialkyldithiocarbonates used as a reagent can be prepared according to the process for the preparation of at least one S, N-dialkyldithiocarbonate as described above.
- Catalysts comprising at least one transition metal are evaluated in a preparation reaction of dimethyldithiocarbonate from dimethyl disulfide in a reactor and under the following conditions:
- a solution of dimethyl disulfide (22.43 mL, 250 mmol) was diluted in dry toluene (500 mL). After removing the air with a vacuum pump, the mixture was stirred at 200 rpm, heated to 160 ° C and pressurized with carbon monoxide (4 MPa) for 40 hours.
- the yield of the dimethyldithiocarbonate produced was determined, for each example after 3 hours, 20 hours and 40 hours of reaction, by gas chromatography on an Agilent DB 1-ms column of 0.32 mm ⁇ 60 m ⁇ 5 ⁇ m.
- the applied temperature gradient is 50 ° C for 3 minutes, then 10 ° C per minute up to 240 ° C, and 240 ° C for 8 minutes.
- the detection was carried out by a thermal conductivity detector (TCD).
- Carbon monoxide pressure 4 MPa.
- the yield of the dimethyldithiocarbonate produced was determined, for each example after 3 hours, 20 hours and 40 hours of reaction, by gas chromatography on an Agilent DB 1-ms column of 0.32 mm ⁇ 60 m ⁇ 5 ⁇ m.
- the applied temperature gradient is 50 ° C for 3 minutes, then 10 ° C per minute up to 240 ° C, and 240 ° C for 8 minutes.
- the detection was carried out by a thermal conductivity detector (TCD).
- the initial concentration of dimethyl disulfide is evaluated in a reaction of dimethyldithiocarbonate preparation and in the presence of tetrakis (triphenylphosphine) palladium oxidation degree (0) and 1,1'-bis (diphenylphosphino) ferrocene, in anhydrous toluene .
- the reaction takes place in a reactor and under the following conditions:
- yields of dimethyldithiocarbonate were determined by gas chromatography on an Agilent DB 1 -ms column of 0.32 mm x 60 m ⁇ 5 ⁇ m after 24, 42 and 70h.
- the applied temperature gradient is 50 ° C for 3 minutes, then 10 ° C per minute up to 240 ° C, and 240 ° C for 8 minutes.
- the detection was carried out by a thermal conductivity detector (TCD).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (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 |
|---|---|---|---|
| FR1852149A FR3078970B1 (fr) | 2018-03-13 | 2018-03-13 | Procede de preparation de s,s'-dialkyldithiocarbonate a partir de disulfure de dialkyle |
| PCT/EP2019/056274 WO2019175235A1 (fr) | 2018-03-13 | 2019-03-13 | Procede de preparation de s,s'-dialkyldithiocarbonate a partir de disulfure de dialkyle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3765443A1 true EP3765443A1 (fr) | 2021-01-20 |
Family
ID=63014642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19709511.0A Pending EP3765443A1 (fr) | 2018-03-13 | 2019-03-13 | Procede de preparation de s,s'-dialkyldithiocarbonate a partir de disulfure de dialkyle |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US11976032B2 (fr) |
| EP (1) | EP3765443A1 (fr) |
| JP (1) | JP7303817B2 (fr) |
| KR (1) | KR102723611B1 (fr) |
| CN (1) | CN111770912B (fr) |
| FR (1) | FR3078970B1 (fr) |
| MY (1) | MY203089A (fr) |
| SG (1) | SG11202008890TA (fr) |
| TW (1) | TWI799535B (fr) |
| WO (1) | WO2019175235A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131747A1 (fr) * | 2015-02-18 | 2016-08-25 | Covestro Deutschland Ag | Procédé de production de polycarbonates par transestérification de dithiocarbonates ou d'analogues de sélénium de ceux-ci avec des bisphénols |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1136581B (it) | 1981-04-17 | 1986-09-03 | Jacopo Degani | Processo per la preparazione di solfuri organici |
| JP2006045209A (ja) | 2004-07-02 | 2006-02-16 | Sankyo Co Ltd | ウレア誘導体 |
| US20070249620A1 (en) | 2004-07-02 | 2007-10-25 | Hitoshi Kurata | Urea Derivative |
| WO2006020281A1 (fr) * | 2004-08-06 | 2006-02-23 | Noveon, Inc. | Polyurethannes et acryliques d'urethanne prepares a partir de composes contenant un thiocarbonate a terminaison hydroxyle |
| ITMI20042402A1 (it) | 2004-12-16 | 2005-03-16 | Oxon Italia Spa | Processo per la preparazione di n,n-dimetil-n'-feniluree |
| JP2007191471A (ja) | 2005-12-21 | 2007-08-02 | Sankyo Co Ltd | ウレア誘導体を含有する医薬 |
-
2018
- 2018-03-13 FR FR1852149A patent/FR3078970B1/fr active Active
-
2019
- 2019-03-13 MY MYPI2020004689A patent/MY203089A/en unknown
- 2019-03-13 KR KR1020207025844A patent/KR102723611B1/ko active Active
- 2019-03-13 SG SG11202008890TA patent/SG11202008890TA/en unknown
- 2019-03-13 US US16/976,336 patent/US11976032B2/en active Active
- 2019-03-13 CN CN201980015575.1A patent/CN111770912B/zh active Active
- 2019-03-13 TW TW108108530A patent/TWI799535B/zh active
- 2019-03-13 JP JP2020542363A patent/JP7303817B2/ja active Active
- 2019-03-13 EP EP19709511.0A patent/EP3765443A1/fr active Pending
- 2019-03-13 WO PCT/EP2019/056274 patent/WO2019175235A1/fr not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131747A1 (fr) * | 2015-02-18 | 2016-08-25 | Covestro Deutschland Ag | Procédé de production de polycarbonates par transestérification de dithiocarbonates ou d'analogues de sélénium de ceux-ci avec des bisphénols |
Non-Patent Citations (2)
| Title |
|---|
| LEUNG MAN-KIT ET AL: "S,S-Dimethyl Dithiocarbonate: A Convenient Reagent for the Synthesis of Symmetrical and Unsymmetrical Ureas", THE JOURNAL OF ORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, vol. 61, no. 12, 1 January 1996 (1996-01-01), pages 4175 - 4179, XP002217935, ISSN: 0022-3263, DOI: 10.1021/JO9522825 * |
| See also references of WO2019175235A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7303817B2 (ja) | 2023-07-05 |
| CN111770912A (zh) | 2020-10-13 |
| SG11202008890TA (en) | 2020-10-29 |
| MY203089A (en) | 2024-06-07 |
| US11976032B2 (en) | 2024-05-07 |
| TWI799535B (zh) | 2023-04-21 |
| WO2019175235A1 (fr) | 2019-09-19 |
| CN111770912B (zh) | 2023-01-17 |
| KR20200131826A (ko) | 2020-11-24 |
| US20230167052A1 (en) | 2023-06-01 |
| TW201946897A (zh) | 2019-12-16 |
| FR3078970A1 (fr) | 2019-09-20 |
| FR3078970B1 (fr) | 2020-02-28 |
| KR102723611B1 (ko) | 2024-10-29 |
| JP2021516220A (ja) | 2021-07-01 |
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