WO2005085204A1 - 含窒素5員環化合物の製造方法 - Google Patents
含窒素5員環化合物の製造方法 Download PDFInfo
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- WO2005085204A1 WO2005085204A1 PCT/JP2005/003236 JP2005003236W WO2005085204A1 WO 2005085204 A1 WO2005085204 A1 WO 2005085204A1 JP 2005003236 W JP2005003236 W JP 2005003236W WO 2005085204 A1 WO2005085204 A1 WO 2005085204A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/04—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
Definitions
- the invention of this application relates to a method for producing a nitrogen-containing 5-membered ring compound. More specifically, the invention of this application relates to an intramolecular cyclization reaction of N-acylhydrazone catalyzed by a Lewis acid, an asymmetric intramolecular cyclization reaction catalyzed by an asymmetric Lewis acid, and The present invention relates to a method of an intermolecular cyclization reaction using an asymmetric Lewis acid catalyst.
- One of the useful methods for constructing a nitrogen-containing 5-membered ring skeleton is a [3 + 2] cyclization reaction.
- cyclization reactions using highly reactive 1,3-dipoles such as ditrons have been widely studied, and examples of catalytic asymmetric cyclization reactions that give optically active nitrogen-containing 5-membered ring skeletons have also been reported.
- Non-Patent Documents 1 and 2 disclose a catalytic amount of Lewis acid to remove adjacent nitrogen atoms under mild conditions.
- Non-Patent Documents 3 and 4 A cyclization reaction method for obtaining an optically active 5-membered ring compound having a pyrazoline skeleton or a birazolidine skeleton has not been known so far (for example, Non-Patent Documents 3 and 4).
- the inventors of the present application clarified and reported that the use of a catalytic amount of zirconium triflate resulted in a high yield and high diastereoselective intramolecular cyclization reaction of hydrazone even under mild conditions. (Non-Patent Document 5).
- such a reaction is limited in the range of compounds to which it is applied and lacks versatility.
- Non-Patent Document 1 Co-immediate rehensive Organic Synthesis; Trost, B. M. Ed .; Pergamon Press: Oxford, 1991; Vol. 5, Chap.
- Non-patent document 2 Gothelf, K V .; Jorgensen, KA Chem. Rev. 1998, 98, 86
- Non-patent document 3 Kanemasa, S .; Kauai, KJ Am. Chem. Soc. 2000, 122, 10710; Reference 4: Shiiitaiii, R .; Fu, G., CJ Am. Chem. Soc. 2003, 125, 10778.
- Non-patent Reference 5 Kobayashi, S .; Hirabayas i, R .; Simizu, E; Is itani, H .; Yamas ita, Y .; Tetrahedron Lett., 2003, 44, 3351.
- Non-Patent Document 6 Cox, P.J .; Wang, W .; Snieckus, V. Tetrahedron Lett. 1992, 33, 2253.
- Non-Patent Document 7 Yamashita, Y .; Ishitani, E; Shimizu, E; Kobayashi, S. J. Am. Che Soc. 2002, 124, 3292.
- Non-Patent Document 8 Kaya, R .; Beller, ⁇ ⁇ R. J. Org. Chem. 1981, 46, 196. Disclosure of the Invention
- the invention of this application was made in view of the circumstances described above, and overcomes the limitations of the prior art, and under a normal condition, has a high stereoselectivity and a high yield in a virazoline skeleton or a birazolidine skeleton. It is an object of the present invention to provide a method for producing a nitrogen-containing five-membered ring compound for obtaining a compound.
- R 1 and R 2 are the same or different and each represent a hydrogen atom or a hydrocarbon group, and Ar represents an aromatic hydrocarbon group which may have a substituent.
- a method for the intramolecular cyclization of N-acylhydrazone which comprises obtaining an N-acylhydrazoline derivative represented by the formula:
- the invention of this application provides a method for the intramolecular cyclization of N-acylhydrazone, wherein the Lewis acid catalyst is scandium triflate.
- X represents a hydrogen atom, a halogen atom, a hydrocarbon group, or a perfluoroalkyl group
- ⁇ represents a hydrogen atom, a halogen atom, a hydrocarbon group, or a perfluoroalkyl group
- X and ⁇ are the same. May be reacted with an asymmetric Lewis acid catalyst obtained by mixing a binaphthol derivative represented by the following formula (II):
- R 4 and R 5 are the same or different and each is a hydrogen atom or a substituent selected from the group consisting of a hydrocarbon group, an alkoxy group and an alkylthio group, and at least one is a group other than a hydrogen atom ) Is represented by the following formula (III)
- N-acyl pyrazoline derivative is obtained.
- an asymmetric Lewis acid catalyst is used, an asymmetric intramolecular cyclization reaction of the N-acylhydrazone of the formula (I) occurs, and the following formula ( ⁇ )
- the optically active N-acyl virazoline derivative is obtained.
- R 1 and ⁇ ⁇ ⁇ ⁇ in the N-acylhydrazone of the formula (I) as a starting material are the same or different and each represent a hydrogen atom or a hydrocarbon group, and Ar may have a substituent. Shows good aromatic hydrocarbon groups.
- R 1 and R 2 are a hydrogen atom or a substituent selected from a saturated aliphatic hydrocarbon group, an unsaturated aliphatic hydrocarbon group and an aromatic hydrocarbon group, preferably Linear such as methyl, ethyl, n-propyl, i-propyl, n-butyl, sec-butyl, tert-butyl, etc.
- branched alkyl group and an aryl group such as phenyl, tolyl, and naphthyl.
- These hydrocarbon groups may have various allowable substituents that do not inhibit the reaction.
- examples of Ar include those in which, in addition to aryl groups such as phenyl, tolyl, and naphthyl, substituents such as an alkyl group, an amino group, a nitro group, and a hydroxyl group are bonded thereto.
- RR 2 and Ar in the formulas (II) and ( ⁇ ) are the same as those in the formula (I). That is, in the intramolecular cyclization reaction method and an asymmetric intramolecular cyclization reaction method of the invention of this application, these radicals RR 2 and A r are the remaining product that obtained by cyclization reaction. Therefore, these groups may be appropriately selected according to the structure of the desired nitrogen-containing 5-membered ring compound.
- the Lewis acid catalyst used in the intramolecular cyclization reaction of N-acylhydrazone various catalysts can be applied. Among them, rare earth metal triflates, more specifically, scandium triflate are used. It is preferably exemplified.
- the asymmetric Lewis acid catalyst used in the asymmetric intramolecular cyclization of N-acylhydrazone is represented by the following formula (III)
- Such an asymmetric Lewis acid catalyst may be isolated after mixing a zirconium alkoxide (or a zirconium dialkoxide dioctylide) and a binaphthol derivative, but it may be isolated in a reaction system without isolation. It may be obtained by in situ.
- X represents a hydrogen atom, a halogen atom, a hydrocarbon group, or a perfluoroalkyl group
- Y represents a hydrogen atom, a halogen atom, a hydrocarbon group, or a perfluoroalkyl group. Represents a group, and X and Y may be the same.
- the conditions other than the catalyst are not particularly limited, but the reaction is preferably carried out in an organic solvent such as dichloromethane, benzene, toluene and the like.
- N-acylhydrazone represented by the formula:
- R 3 represents a hydrocarbon group which may have a substituent
- Ar represents an aromatic hydrocarbon group which may have a substituent.
- R 3 a linear or branched chain alkyl group such as methyl, ethyl, propyl, butyl, pentyl, hexyl, etc .; a cyclic alkyl group such as cyclopentyl, cyclohexyl; phenyl, tolyl And an aromatic group such as naphthyl, and a benzyl group and a phenylthiomethyl group.
- hydrocarbon groups may have various allowable substituents such as an alkoxy group, an alkylthio group, a silyloxy group, a nitro group and a cyano group.
- Examples of Ar include phenyl, tolyl, naphthyl, p-nitrophenyl, o, p-dinitrophenyl, and aminophenyl.
- R 5 in the formula (VI) are the same or different and are a hydrogen atom or a substituent selected from the group consisting of a hydrocarbon group, an alkoxy group, and an alkylthio group, and at least one is a group other than a hydrogen atom Group.
- these substituents R 3 to R 5 and Ar remain in the product obtained by the asymmetric intermolecular cyclization reaction. Therefore, these substituents may be appropriately selected according to the structure of the desired nitrogen-containing 5-membered ring compound.
- the asymmetric intermolecular cyclization reaction method of the invention of the present application may be obtained by reacting an N-acylhydrazone derivative with olefin in the presence of the catalyst system as described above, and the reaction conditions are not particularly limited. .
- primary alcohols coexist especially in the reaction system In this case, stereoselectivity is increased, which is preferable.
- the type and amount of primary alcohol added at this time are not limited.
- n-propanol may be added in an amount of 1 to 10 equivalents to the binaphthol derivative (IV).
- reaction conditions are not particularly limited, but (the yield and the stereoselectivity are very high even under very mild conditions of TC to around room temperature).
- a reaction solvent various organic solvents are exemplified, and preferably, dichloromethane, chloroform, benzene, toluene and the like are exemplified. As described above, the addition of a primary alcohol to the reaction solvent is preferable because stereoselectivity is further improved.
- the N-acylpyrazoline derivative or N-acyl virazolidine derivative produced by the method of the invention of this application may be further reacted and converted into a desired substance by applying various organic synthesis techniques. For example, it is considered that the N—N bond of these derivatives is cleaved to induce an optically active 1,3-diamine.
- extraction, separation, and filtration are performed to purify the product. General operations such as recrystallization, washing, and drying may be performed.
- EI high-resolution mass spectrum (EI-image S) was determined using a JEOL-JMX-SX-102 mass spectrometer.
- Zirconium propoxide-propanol complex ( ⁇ (0 ⁇ ) 4 ) was purchased and used from Fluk Chemie AG. Propanol was distilled in the presence of magnesium propoxide. BIN0L was synthesized by the methods described in Non-Patent Documents 6 and 7.
- Ketene dimethyl dithioacetal (compound 2a) was synthesized by the method described in Non-Patent Document 8.
- Vinyl ether was purchased from Sigma-Aldricli and distilled immediately before use.
- Table 1 shows the results of product identification.
- the resulting mixture was stirred at 80 for 18 hours. After allowing to cool to room temperature, the reaction mixture was quenched with a saturated aqueous solution of sodium hydrogencarbonate, the resulting mixture was separated, and the aqueous layer was extracted with methylene chloride.
- Table 2 shows the identification results.
- reaction formula (C) an asymmetric intermolecular cyclization reaction between N-acylhydrazone and olefin was performed.
- R 3 PhGH 2 CH 2
- R 5 OCH 2 GH 3
- the obtained catalyst solution was transferred to another container containing hydrazone lb (0,40 mol) with toluene (0.5 inL) by force, and the mixture was stirred at 0.
- the obtained catalyst solution was transferred to another container containing hydrazone la (0.40 orchid ol) with a force nebulizer using toluene (0.8 mL), and the mixture was stirred at 0.
- reaction conditions were as follows: asymmetric zirconium catalyst (10 mol3 ⁇ 4) and propanol (10 mol3 ⁇ 4) obtained by mixing ⁇ (0 ⁇ ) 4 (10 mol%) and (R) -3 (12 mol3 ⁇ 4). In toluene in the presence of 50 molS, it was 18 hours at 0. The yield represents the isolation yield, and the diastereomer ratio was determined by 1 HNR. Table 19 G
- Table 21 shows the identification results of the compound 6.
- an N-acylhydrazone for obtaining a birazolin skeleton or a birazolidin skeleton with a high stereoselectivity and a high yield in an organic solvent under mild conditions such as from room temperature to reflux and a method for an asymmetric intramolecular cyclization reaction and an asymmetric intermolecular cyclization reaction.
- the N-acylhydrazone of the formula (I) is heated in the presence of a Lewis acid catalyst to obtain an intramolecular cyclization reaction. [3 + 2] Cycloaddition reaction occurs, and the N-acyl virazoline derivative of the formula (II) is obtained.
- the N-acylhydrazone of the formula (I) may be prepared by converting a zirconium alkoxide or a zirconium dimethyl alcohol with binaphthol By heating in the presence of an asymmetric Lewis acid catalyst obtained by mixing the derivatives, an intramolecular cyclization reaction occurs and an optically active N-acylpyrazoline derivative is obtained.
- N-acylhydrazone of the formula (V) and olefin are combined with zirconium alkoxide or zirconium dialkoxide dihalide.
- Binaph) ⁇ -l derivative and by reacting in the presence of an asymmetric Lewis acid catalyst it is possible to obtain optically active N-acylpyrazolidine derivatives with high stereoselectivity. Become.
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- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2006510658A JP4614948B2 (ja) | 2004-03-09 | 2005-02-21 | 含窒素5員環化合物の製造方法 |
US10/592,139 US7705161B2 (en) | 2004-03-09 | 2005-02-21 | Process for producing nitrogenous 5-membered cyclic compound |
EP05710758A EP1731509B1 (en) | 2004-03-09 | 2005-02-21 | Process for producing nitrogenous 5-membered cyclic compound |
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JP2004-66434 | 2004-03-09 | ||
JP2004066434 | 2004-03-09 |
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WO2005085204A1 true WO2005085204A1 (ja) | 2005-09-15 |
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PCT/JP2005/003236 WO2005085204A1 (ja) | 2004-03-09 | 2005-02-21 | 含窒素5員環化合物の製造方法 |
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US (1) | US7705161B2 (ja) |
EP (1) | EP1731509B1 (ja) |
JP (1) | JP4614948B2 (ja) |
WO (1) | WO2005085204A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107089950A (zh) * | 2017-06-16 | 2017-08-25 | 河南师范大学 | 一种由非环酮腙合成4‑酰基吡唑类化合物的方法 |
CN107141258A (zh) * | 2017-06-16 | 2017-09-08 | 河南师范大学 | 一种由环酮腙合成侧链官能团化4‑酰基吡唑类化合物的方法 |
Families Citing this family (2)
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CN102596950A (zh) * | 2009-10-29 | 2012-07-18 | E.I.内穆尔杜邦公司 | 用于电子应用的氘代化合物 |
CN106366077A (zh) * | 2016-08-28 | 2017-02-01 | 谢长江 | 一种硫代杯[4]芳烃酰腙类希夫碱衍生物及其合成方法和应用 |
Citations (2)
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JPH11217362A (ja) * | 1998-01-28 | 1999-08-10 | Japan Science & Technology Corp | β−ヒドラジノエステル類並びにピラゾリジノン類、 ピラゾロン類およびβ−アミノ酸誘導体の製造方法 |
JPH11263758A (ja) * | 1998-03-13 | 1999-09-28 | Japan Science & Technology Corp | 樹脂固定化アミン誘導体並びにβ−アミノカルボニル 化合物の固相合成方法 |
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US4895947A (en) * | 1987-12-17 | 1990-01-23 | Mitsui Toatsu Chemicals, Inc. | Process for producing 1-acyl-2-pyrazoline derivative |
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- 2005-02-21 US US10/592,139 patent/US7705161B2/en not_active Expired - Fee Related
- 2005-02-21 WO PCT/JP2005/003236 patent/WO2005085204A1/ja active Search and Examination
- 2005-02-21 JP JP2006510658A patent/JP4614948B2/ja not_active Expired - Fee Related
- 2005-02-21 EP EP05710758A patent/EP1731509B1/en not_active Not-in-force
Patent Citations (2)
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JPH11217362A (ja) * | 1998-01-28 | 1999-08-10 | Japan Science & Technology Corp | β−ヒドラジノエステル類並びにピラゾリジノン類、 ピラゾロン類およびβ−アミノ酸誘導体の製造方法 |
JPH11263758A (ja) * | 1998-03-13 | 1999-09-28 | Japan Science & Technology Corp | 樹脂固定化アミン誘導体並びにβ−アミノカルボニル 化合物の固相合成方法 |
Non-Patent Citations (4)
Title |
---|
KOBAYASHI S. ET AL.: "Lewis acid-medoated (3+2) cycloaddition between hydrazones and olefins.", TETRAHEDRON LETTERS., vol. 44, no. 16, 2003, pages 3351 - 3354, XP004417094 * |
LIM C. ET AL.: "Cycloaddition reactions of 1-pyrazoline on the Si(100)2*1 surface.", J. PHYS.CHEM., vol. 107, no. 25, 2003, pages 6853 - 6858, XP002988795 * |
See also references of EP1731509A4 * |
SHEN J.K. ET AL.: "Preparation of pyrazole and pyrazoline derivates by intramolecular reaction of hydrazones.", CHEMISTRY LETTERS., vol. 3, 1992, pages 451 - 452, XP002988796 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107089950A (zh) * | 2017-06-16 | 2017-08-25 | 河南师范大学 | 一种由非环酮腙合成4‑酰基吡唑类化合物的方法 |
CN107141258A (zh) * | 2017-06-16 | 2017-09-08 | 河南师范大学 | 一种由环酮腙合成侧链官能团化4‑酰基吡唑类化合物的方法 |
CN107141258B (zh) * | 2017-06-16 | 2019-12-06 | 河南师范大学 | 一种由环酮腙合成侧链官能团化4-酰基吡唑类化合物的方法 |
CN107089950B (zh) * | 2017-06-16 | 2019-12-24 | 河南师范大学 | 一种由非环酮腙合成4-酰基吡唑类化合物的方法 |
Also Published As
Publication number | Publication date |
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US7705161B2 (en) | 2010-04-27 |
JP4614948B2 (ja) | 2011-01-19 |
EP1731509A4 (en) | 2009-09-23 |
EP1731509A1 (en) | 2006-12-13 |
EP1731509B1 (en) | 2011-10-19 |
JPWO2005085204A1 (ja) | 2008-01-17 |
US20070191614A1 (en) | 2007-08-16 |
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