WO2004035520A1 - アセチレン化合物の製造方法 - Google Patents
アセチレン化合物の製造方法 Download PDFInfo
- Publication number
- WO2004035520A1 WO2004035520A1 PCT/JP2003/012312 JP0312312W WO2004035520A1 WO 2004035520 A1 WO2004035520 A1 WO 2004035520A1 JP 0312312 W JP0312312 W JP 0312312W WO 2004035520 A1 WO2004035520 A1 WO 2004035520A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- methyl
- represented
- reaction
- solvent
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/27—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups
- C07C205/35—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C205/36—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system
- C07C205/37—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system the oxygen atom of at least one of the etherified hydroxy groups being further bound to an acyclic carbon atom
Definitions
- the present invention relates to a method for producing an acetylene compound from 412 trifluorobenzene and 2-methyl-3-butyn_2-ol.
- This compound is useful as an intermediate for the synthesis of, for example, an anti-atrial fibrillation drug (see JP-A-2001-151767) and an antihypertensive drug (see Med. Chem., 1983, Vol. 26, No. ll, 1582-1589). is there.
- Background art
- a conventional method for producing an acetylene compound represented by the formula 3 is to react 4_nitrophenol (compound (5)) with 2-methyl-3-butyne_2-chloride (compound (6)) in the presence of a base.
- the method of making it known is known. (For example, see Non-Patent Document 1 and Patent Document 1.)
- Non-Patent Document 2 the use of a copper catalyst improves the yield to 89%, but causes a new problem of removing the copper catalyst, which is a heavy metal.
- potassium iodide there are problems such as the use of a large amount of potassium iodide, which is not necessarily inexpensive, and the problem of the stability of 2-methyl-3-butyne-12-chloride remains. Have been.
- Non-Patent Document 3 The production method described in Non-Patent Document 3 is similar to the above-mentioned method, but the yield when 2-methyl-3-butyne-12-chloride is used is only 81%, and the best yield is obtained.
- Non-Patent Document 4 is also unsuitable as an industrial production method from the viewpoint of low yield (45%) and cost aspects such as DEAD.
- Non-Patent Document 5 The production method described in Non-Patent Document 5 is relatively inexpensive and stable, using 2-methyl-3-butyn-2-ol and 412 trifluorobenzene as raw materials, and does not use a catalyst such as a heavy metal. In this respect, it can be said that the production method is excellent in cost and operability, but has problems such as a low yield of 35% and a long reaction time (room temperature, 3 days).
- Patent Document 1 JP-A-58-188880
- Non-patent document 1 J. Med. Chem., LQS, vol. 26, No. ll, p. 1582.
- Non-Patent Document 2 Synthesis, 1995, vol.6, p.707.
- Non-Patent Document 3 Tetrahedron Lett, 1994, vol.35, p.6405.
- Non-patent Document 4 Synth. Commun., 1989, vol. 19, p. 1255.
- Non-Patent Document 5 J. Org. Chem., 1972, vol. 37, p. 841. Disclosure of the Invention
- the present inventors have intensively studied the reaction conditions of 412 trifluorobenzene and alkoxide of 2-methyl-3-butyn-1-ol, and have found that operability is good.
- the present inventors have found a production method capable of obtaining the desired product in a good yield and completed the present invention.
- the method for producing the acetylene compound represented by the formula (3) of the present invention will be described.
- the acetylene compound represented by the formula (3) is obtained by dissolving an alkoxide of 2-methyl-13-butyn-1-ol represented by the formula (2) and 4-nitrofluorobenzene represented by the formula (1) in a solvent. Is reacted at 120 to 10 ° C. to produce the compound in good yield.
- a metal alkoxide is usually used.
- a metal of the metal alkoxide sodium, potassium, lithium, etc. Is preferred, and sodium is more preferred from the viewpoint of simplicity of operation and reactivity.
- the amount of the alkoxide of 2-methyl-3-butyn-2-ol represented by the formula (2) is 0.5 to 0.5 to the amount of 4_-trofluorobenzene represented by the formula (1).
- the molar ratio is 20-fold, but if it is 1-fold or less, the yield is reduced. Therefore, it is preferably 1-fold or more, and from the viewpoint of cost, the range is 1- to 3-fold by mole.
- the reaction can be carried out by dropping a 4-nitrofluorobenzene represented by the formula (1) into a solution comprising a solvent and an alkoxide of 2-methyl-3-butyn-12-ol represented by the formula (2). It is preferable to add them.
- the time for dropping is not particularly limited as long as the temperature does not rise sharply in the reaction system and the set temperature can be maintained, but 0.5 to 5 hours is preferable.
- Examples of the solvent used in the present invention include amide solvents such as ⁇ , ⁇ -dimethylacetamide, ⁇ , ⁇ -dimethylformamide, ⁇ -methylpyrrolidone, ⁇ , ⁇ , 1-dimethylimidazolidinone, toluene, and xylene Aromatic hydrocarbon solvents such as hexane, aliphatic hydrocarbon solvents such as hexane and heptane, and dichloromethane Such a halogenated hydrocarbon solvent and a mixture of a plurality of the above solvents can be used.
- amide solvents such as ⁇ , ⁇ -dimethylacetamide, ⁇ , ⁇ -dimethylformamide, ⁇ -methylpyrrolidone, ⁇ , ⁇ , 1-dimethylimidazolidinone, toluene, and xylene
- Aromatic hydrocarbon solvents such as hexane, aliphatic hydrocarbon solvents such as hexane and h
- Preferred solvents include amide solvents from the viewpoint of the yield of the acetylene compound represented by the formula (3). More preferably, ⁇ , ⁇ -dimethylacetamide, ⁇ , ⁇ ′-dimethyl And imidazolidinone.
- the amount of the solvent used is two times the amount of 4_nitrofluorobenzene represented by the formula (1). It is preferably used in an amount of at least twice, more preferably from the viewpoint of cost, for example, in the range of 2 to 4 times by mass, and for example, in the range of 2 to 3 times by mass.
- the reaction temperature is in the range of 120 ° C to 10 ° C. It is more preferably in the range of 0 ° C.
- reaction time varies depending on the reaction temperature, the amount of the alkoxide used, and the like, it cannot be unconditionally determined.
- the acetylene compound represented by the formula (3) which is a product, is obtained by adding water, extracting with an organic solvent such as toluene, washing, and distilling off the solvent to obtain a crude product.
- an organic solvent such as toluene
- the crude product can be used as it is for the production of the benzopyran intermediate, but it can be purified by column chromatography or distillation if necessary.
- the alkoxide of 2-methyl-3-butyn-1-ol represented by the formula (2) which is a raw material of the present invention, is usually prepared by converting 2-methyl-3-butyn-1-ol represented by the formula (2) to hydrogen. It can also be produced by treating with a metal oxide, for example, sodium hydride, hydrogenation hydride, or a metal, for example, metal, sodium, potassium, lithium, or the like.
- the acetylene compound represented by the formula (3) produced by the present invention is converted into a benzopyran derivative which is a synthetic intermediate of an anti-atrial fibrillation drug or an antihypertensive drug by the production method shown by the following reaction formula. .
- the acetylene compound represented by the formula (3) is converted to a benzopyran compound by heat cyclization, it is converted to a synthetic intermediate of the above-mentioned anti-atrial fibrillation drug or antihypertensive drug through reduction and acetylation. it can.
- the by-product represented by the formula (4) generated during the production of the acetylene compound represented by the formula (3) cannot be completely removed even by crystallization of the acetylamino compound, and thus is represented by the formula (3). It is important to suppress the generation of the by-product represented by the formula (4) during the production of the acetylene compound in order to improve the efficiency of the subsequent production.
- the aqueous layer is extracted with 709 g of ethyl acetate, the ethyl acetate layer is combined with the previous one, washed with 709 g of water, and then the solvent is distilled off to obtain the target compound represented by the formula (3). (177 g) of a crude acetylene compound was obtained.
- Table 1 shows the relative area percentage of HPLC of the crude product of the acetylene compound represented by (3) and the by-product represented by the formula (4) after 38 hours from the reaction.
- the crystal was contaminated with mineral oil such as sodium hydride, and its internal standard was determined by HPLC to be 89.4%. Therefore, the yield was 84% over the two steps.
- the physical properties of the sample purified by silica gel column chromatography are described below.
- the reaction time varied depending on the conditions.
- the amount of the solvent was represented by mass times the used amount of 412 trifluorobenzene represented by the formula (1).
- Example 2 Example solvent amount Temperature Time Ratio after reaction (%) Ratio of crude material (%)
- Example 6 (Example using ⁇ , ⁇ '-dimethylimidazolidinone (DMI) as solvent)
- Table 3 shows the relative area percentage of HPLC of the crude product of the acetylene compound represented by formula (3) and the by-product represented by formula (4) after 18 hours from the reaction.
- the acetylene compound represented by the formula (3) obtained by the method of the present invention is useful, for example, in the pharmaceutical industry and the like because it is useful as a synthetic intermediate for an anti-atrial fibrillation drug or an antihypertensive drug.
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003268683A AU2003268683B2 (en) | 2002-10-18 | 2003-09-26 | Process for production of an acetylenic compound |
US10/531,458 US7038091B2 (en) | 2002-10-18 | 2003-09-26 | Process for producing acetylene compound |
UAA200504632A UA78876C2 (en) | 2002-10-18 | 2003-09-26 | Process for production of an acetylenic compound |
MXPA05004124A MXPA05004124A (es) | 2002-10-18 | 2003-09-26 | Proceso para producir compuestos de acetileno. |
JP2004544912A JP4258658B2 (ja) | 2002-10-18 | 2003-09-26 | アセチレン化合物の製造方法 |
NZ540107A NZ540107A (en) | 2002-10-18 | 2003-09-26 | Method for producing a useful acetylene intermediate with 4-nitrofluorobenzene and 2-methyl-3-butyn-2-ol |
EP03748596A EP1564201A4 (en) | 2002-10-18 | 2003-09-26 | PROCESS FOR PRODUCING AN ACETYLENE COMPOUND |
CA2502360A CA2502360C (en) | 2002-10-18 | 2003-09-26 | Process for producing acetylene compound |
IL168110A IL168110A (en) | 2002-10-18 | 2005-04-18 | Process to form an acetylene compound |
NO20052392A NO331176B1 (no) | 2002-10-18 | 2005-05-18 | Fremgangsmate for fremstilling av en acetylenforbindelse. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002/303876 | 2002-10-18 | ||
JP2002303876 | 2002-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004035520A1 true WO2004035520A1 (ja) | 2004-04-29 |
Family
ID=32105088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012312 WO2004035520A1 (ja) | 2002-10-18 | 2003-09-26 | アセチレン化合物の製造方法 |
Country Status (16)
Country | Link |
---|---|
US (1) | US7038091B2 (ja) |
EP (1) | EP1564201A4 (ja) |
JP (1) | JP4258658B2 (ja) |
KR (1) | KR101004133B1 (ja) |
CN (1) | CN1296342C (ja) |
AU (1) | AU2003268683B2 (ja) |
CA (1) | CA2502360C (ja) |
IL (1) | IL168110A (ja) |
MX (1) | MXPA05004124A (ja) |
NO (1) | NO331176B1 (ja) |
NZ (1) | NZ540107A (ja) |
RU (1) | RU2315747C2 (ja) |
TW (1) | TWI318972B (ja) |
UA (1) | UA78876C2 (ja) |
WO (1) | WO2004035520A1 (ja) |
ZA (1) | ZA200503239B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015012271A1 (ja) | 2013-07-25 | 2015-01-29 | 日産化学工業株式会社 | 複素環化合物の製造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006011074A (ja) * | 2004-06-25 | 2006-01-12 | Seiko Epson Corp | 表示コントローラ、電子機器及び画像データ供給方法 |
DE102007028925A1 (de) | 2007-06-22 | 2008-12-24 | Saltigo Gmbh | Verfahren zur Herstellung von 2-Phenoxyacetalen und den daraus korrespondierenden 2-Phenoxycarbaldehyden |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1093121A (en) * | 1963-05-31 | 1967-11-29 | Wellcome Found | Etherified ªÐ-hydroxyanilines |
JPS5811407B2 (ja) * | 1979-12-24 | 1983-03-02 | 旭化成株式会社 | 安定化1,1,1−トリクロルエタン組成物 |
EP0091748B1 (en) | 1982-04-08 | 1986-06-18 | Beecham Group Plc | Antihypertensive benzopyranols |
-
2003
- 2003-09-26 US US10/531,458 patent/US7038091B2/en not_active Expired - Fee Related
- 2003-09-26 AU AU2003268683A patent/AU2003268683B2/en not_active Ceased
- 2003-09-26 UA UAA200504632A patent/UA78876C2/uk unknown
- 2003-09-26 RU RU2005115105/04A patent/RU2315747C2/ru not_active IP Right Cessation
- 2003-09-26 JP JP2004544912A patent/JP4258658B2/ja not_active Expired - Fee Related
- 2003-09-26 KR KR1020057006717A patent/KR101004133B1/ko not_active IP Right Cessation
- 2003-09-26 MX MXPA05004124A patent/MXPA05004124A/es active IP Right Grant
- 2003-09-26 WO PCT/JP2003/012312 patent/WO2004035520A1/ja active Application Filing
- 2003-09-26 CA CA2502360A patent/CA2502360C/en not_active Expired - Fee Related
- 2003-09-26 EP EP03748596A patent/EP1564201A4/en not_active Withdrawn
- 2003-09-26 CN CNB038243326A patent/CN1296342C/zh not_active Expired - Fee Related
- 2003-09-26 NZ NZ540107A patent/NZ540107A/en not_active IP Right Cessation
- 2003-10-15 TW TW092128576A patent/TWI318972B/zh not_active IP Right Cessation
-
2005
- 2005-04-18 IL IL168110A patent/IL168110A/en not_active IP Right Cessation
- 2005-04-21 ZA ZA200503239A patent/ZA200503239B/en unknown
- 2005-05-18 NO NO20052392A patent/NO331176B1/no not_active IP Right Cessation
Non-Patent Citations (4)
Title |
---|
HARFENIST ET AL.: "The influence of structure on the rate of thermal rearrangement of aryl propargyl ethers to the chromenes. The gem-dimethyl effect", J. ORG. CHEM., vol. 37, no. 2, 1972, pages 841 - 848, XP002976395 * |
RAEPPEL ET AL.: "Novel exploration of the SnAr reaction", SYNLETT, no. 7, 1998, pages 794 - 796, XP002976396 * |
See also references of EP1564201A4 * |
XU ET AL.: "Polymer supported bases in combinatorial chemistry: synthesis of aryl ethers from phenols and alkyl halides and aryl halides", TETRAHEDRON LETTERS, vol. 38, no. 42, 1997, pages 7337 - 7373, XP002976397 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015012271A1 (ja) | 2013-07-25 | 2015-01-29 | 日産化学工業株式会社 | 複素環化合物の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2003268683A1 (en) | 2004-05-04 |
EP1564201A1 (en) | 2005-08-17 |
JPWO2004035520A1 (ja) | 2006-02-16 |
TWI318972B (en) | 2010-01-01 |
NO331176B1 (no) | 2011-10-24 |
CN1688536A (zh) | 2005-10-26 |
NO20052392L (no) | 2005-07-18 |
US20060041031A1 (en) | 2006-02-23 |
IL168110A0 (en) | 2009-02-11 |
KR20050070068A (ko) | 2005-07-05 |
US7038091B2 (en) | 2006-05-02 |
CA2502360A1 (en) | 2004-04-29 |
ZA200503239B (en) | 2006-06-28 |
KR101004133B1 (ko) | 2010-12-27 |
RU2315747C2 (ru) | 2008-01-27 |
EP1564201A4 (en) | 2006-11-08 |
MXPA05004124A (es) | 2005-06-24 |
CN1296342C (zh) | 2007-01-24 |
NZ540107A (en) | 2006-04-28 |
TW200410930A (en) | 2004-07-01 |
AU2003268683B2 (en) | 2009-09-03 |
UA78876C2 (en) | 2007-04-25 |
NO20052392D0 (no) | 2005-05-18 |
JP4258658B2 (ja) | 2009-04-30 |
RU2005115105A (ru) | 2006-01-10 |
CA2502360C (en) | 2011-06-21 |
IL168110A (en) | 2012-02-29 |
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