WO2006094667A1 - Verfahren zur darstellung von 3,3,4,4-tetrachlortetrahydrothiophen-1,1-dioxid - Google Patents
Verfahren zur darstellung von 3,3,4,4-tetrachlortetrahydrothiophen-1,1-dioxid Download PDFInfo
- Publication number
- WO2006094667A1 WO2006094667A1 PCT/EP2006/001763 EP2006001763W WO2006094667A1 WO 2006094667 A1 WO2006094667 A1 WO 2006094667A1 EP 2006001763 W EP2006001763 W EP 2006001763W WO 2006094667 A1 WO2006094667 A1 WO 2006094667A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dioxide
- reaction
- phosphoryl chloride
- chlorine
- formula
- Prior art date
Links
- MBDNRNMVTZADMQ-UHFFFAOYSA-N O=S1(CC=CC1)=O Chemical compound O=S1(CC=CC1)=O MBDNRNMVTZADMQ-UHFFFAOYSA-N 0.000 description 2
- XSAPRLAPMXKTAX-UHFFFAOYSA-N CS(CC1Cl)(CC1Cl)(O)=O Chemical compound CS(CC1Cl)(CC1Cl)(O)=O XSAPRLAPMXKTAX-UHFFFAOYSA-N 0.000 description 1
- CIDAIMONSYOOGS-UHFFFAOYSA-N O=S(C=C1Cl)(C=C1Cl)=O Chemical compound O=S(C=C1Cl)(C=C1Cl)=O CIDAIMONSYOOGS-UHFFFAOYSA-N 0.000 description 1
- GCAXGCSCRRVVLF-UHFFFAOYSA-N O=S(CC1(Cl)Cl)(CC1(Cl)Cl)=O Chemical compound O=S(CC1(Cl)Cl)(CC1(Cl)Cl)=O GCAXGCSCRRVVLF-UHFFFAOYSA-N 0.000 description 1
- QNCGPRYKODEOAJ-UHFFFAOYSA-N OS(CC1(Cl)Cl)(CC1(Cl)Cl)=O Chemical compound OS(CC1(Cl)Cl)(CC1(Cl)Cl)=O QNCGPRYKODEOAJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/46—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom
- C07D333/48—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms
Definitions
- the present invention relates to a novel process for the preparation of the already known 3,3,4,4-tetrachlorotetrahydrothiophene dioxide.
- This compound is required as an intermediate for the synthesis of 3,4-dichlorothiophene dioxide, which has fungicidal properties or can itself be used as a precursor for fungicides.
- the presentation is described in J. Org. Chem. 1960, 20, 346.
- a chlorine addition to sulfolene to 3,4-Dichlorsulfolan For the following raduclear substitution with chlorine more energetic conditions are necessary.
- JP-A 5-339258 claims the photochlorination of 3,4-dichlorotetrahydrothiophene, l-dioxide in an inert solvent. Mentioned here are carbon tetrachloride, chloroform, chlorobenzene and carbon disulfide. The latter is unsuitable for this reaction because of its low boiling point and its very low ignition temperature. In the course of photochlorination in, chloroform or chlorobenzene we found, on the other hand, that these solvents are also chlorinated in many different ways, with ozone-detrimental products being formed in large quantities.
- the present invention therefore provides a process for preparing 3,3,4,4-tetrachlorotetrahydrothiophene, 1,1-dioxide of the formula (I)
- POCl 3 has excellent properties under the drastic reaction conditions investigated as the reaction medium. It may, for example, in conjunction with the chlorine introduced during the reaction itself chlorinating or catalyzing act on the chlorination.
- the reaction is favored by the better solubility of chlorine in phosphoryl chloride and the binding capacity of phosphoryl chloride for the liberated hydrogen chloride.
- the phosphoryl chloride can be recovered by simple distillation and recycled. It also allows the performance of photochemical chlorination in highly concentrated solution, because it has very good dissolution properties compared to sulfolene. It has been found that phosphoryl chloride has very good dissolution properties with respect to the educt and the product. This prevents precipitation during the reaction, which in turn would reduce light transmittance and thus slow down the chlorination in photocatalysis.
- the boiling point of POCl 3 is sufficient. high in order to be able to perform photochlorinations even in the required heat.
- the sulfolene of the formula (U) used as starting material in carrying out the process according to the invention is a known synthetic chemical.
- Suitable solvents for carrying out the first step of the process according to the invention are all conventional inert organic solvents.
- Alkanes such as cyclohexane, methylcyclohexane, heptane, octane, petroleum ether or POCl 3 are preferably usable.
- POCl 3 is hydrolyzed in the air by moisture immediately, so it has no persistence and no
- POCl 3 is a low-cost industrial chemical and can easily be recovered by distillation.
- Suitable chlorinating agents for the first step of the process according to the invention are chlorine and, for the second step, all customary agents for such reactions, preference being given to using chlorine gas.
- customary radical sources can be used.
- light or free radical generators such as DBPO, AIBN 5 tert-butyl hydroperoxide or succinic acid peroxide.
- UV light or near UV light come into question, however, UV light or near UV light is preferred.
- UV lamps such as low pressure mercury vapor lamps or high pressure mercury vapor lamps can be used.
- reaction temperatures can be varied within a substantial range when carrying out the first step of the process according to the invention. In general is carried out at tempera- tures of from -10 0 C to +150 0 C, preferably in the range from 0 0 C to 80 0 C.
- reaction temperatures can be varied within a relatively wide range when carrying out the second step of the process according to the invention. In general, one works at temperatures of -10 0 C to +150 0 C, preferably in the range of 50 0 C to 85 ° C. ⁇ ⁇
- the first and the second step can also be carried out under pressure; generally between 0.8 and 10 bar.
- the reaction time is dependent on the temperature, the intensity of the light irradiation, the rate of chlorine introduction, the pressure and the amount of the starting materials used.
- the termination of the reaction takes place when, for example, by NMR study of a sample no reactant and no trichlorosilane, which is passed through as an intermediate, more is found. The reaction can be interrupted and then continued again.
- First and second steps can also be carried out as a one-pot reaction, ie without intervening workup of the 3,4-dichlorotetrahydrothiophene-1, l-dioxide.
- the product-containing phosphoryl chloride solution of the first step is subjected directly to further photochlorination.
- the POCl 3 -containing solution is evaporated in vacuo and then stirred with 500 ml of isopropanol.
- the crystals are filtered off with suction and washed twice with 50 ml of isopropanol each time.
- Ice bath is kept at 18-21 0 C. After approximately one quarter of the amount of chlorine has been introduced, the suspension dissolves. From about 50% chlorine amount again creates a thick, but easy to stir
- the solution contains 90% (cis / trans ratio: 71:29) dichlorosulfolane and 9.4%
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008500082A JP2008532960A (ja) | 2005-03-11 | 2006-02-27 | 3,3,4,4−テトラクロロテトラヒドロチオフェン−1,1−ジオキシドの製造方法 |
EP06723124A EP1863786A1 (de) | 2005-03-11 | 2006-02-27 | Verfahren zur darstellung von 3,3,4,4-tetrachlortetrahydrothiophen-1,1-dioxid |
IL185858A IL185858A0 (en) | 2005-03-11 | 2007-09-10 | Method for the representation of 3,3,4,4-tetrachlorotetrahydrothiophene-1,1-dioxide |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005011229A DE102005011229A1 (de) | 2005-03-11 | 2005-03-11 | Verfahren zur Darstellung von 3,3,4,4-Tetrachlortetrahydrothiophen-1,1-dioxid |
DE102005011229.3 | 2005-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006094667A1 true WO2006094667A1 (de) | 2006-09-14 |
Family
ID=36218437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/001763 WO2006094667A1 (de) | 2005-03-11 | 2006-02-27 | Verfahren zur darstellung von 3,3,4,4-tetrachlortetrahydrothiophen-1,1-dioxid |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1863786A1 (de) |
JP (1) | JP2008532960A (de) |
CN (1) | CN101137640A (de) |
DE (1) | DE102005011229A1 (de) |
IL (1) | IL185858A0 (de) |
WO (1) | WO2006094667A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963751A (en) * | 1975-07-14 | 1976-06-15 | Diamond Shamrock Corporation | Chlorination of butadiene sulfone to 3,3,4,4-tetrachlorotetrahydrothiophene-1,1-dioxide |
ES2008765A6 (es) * | 1987-11-12 | 1989-08-01 | Miret Lab | Mejoras introducidas en el objeto de la patente principal numero 549.317 por proceso de fabricaciondel 3,3,4,4-tetrahalotetrahidro-tiofeno-1,1-dioxido. |
JPH0748365A (ja) * | 1993-08-04 | 1995-02-21 | Takeda Chem Ind Ltd | 塩素化有機化合物の製造方法 |
JPH10101668A (ja) * | 1996-09-25 | 1998-04-21 | Takeda Chem Ind Ltd | 3,3,4,4−テトラクロロテトラヒドロチオフェン −1,1−ジオキサイドの製造方法 |
-
2005
- 2005-03-11 DE DE102005011229A patent/DE102005011229A1/de not_active Withdrawn
-
2006
- 2006-02-27 EP EP06723124A patent/EP1863786A1/de not_active Withdrawn
- 2006-02-27 WO PCT/EP2006/001763 patent/WO2006094667A1/de not_active Application Discontinuation
- 2006-02-27 JP JP2008500082A patent/JP2008532960A/ja not_active Withdrawn
- 2006-02-27 CN CNA2006800078739A patent/CN101137640A/zh active Pending
-
2007
- 2007-09-10 IL IL185858A patent/IL185858A0/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3963751A (en) * | 1975-07-14 | 1976-06-15 | Diamond Shamrock Corporation | Chlorination of butadiene sulfone to 3,3,4,4-tetrachlorotetrahydrothiophene-1,1-dioxide |
ES2008765A6 (es) * | 1987-11-12 | 1989-08-01 | Miret Lab | Mejoras introducidas en el objeto de la patente principal numero 549.317 por proceso de fabricaciondel 3,3,4,4-tetrahalotetrahidro-tiofeno-1,1-dioxido. |
JPH0748365A (ja) * | 1993-08-04 | 1995-02-21 | Takeda Chem Ind Ltd | 塩素化有機化合物の製造方法 |
JPH10101668A (ja) * | 1996-09-25 | 1998-04-21 | Takeda Chem Ind Ltd | 3,3,4,4−テトラクロロテトラヒドロチオフェン −1,1−ジオキサイドの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101137640A (zh) | 2008-03-05 |
DE102005011229A1 (de) | 2006-09-14 |
IL185858A0 (en) | 2008-01-06 |
EP1863786A1 (de) | 2007-12-12 |
JP2008532960A (ja) | 2008-08-21 |
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