WO2010007964A1 - 6-アリールオキシキノリン誘導体の製造方法およびその中間体 - Google Patents
6-アリールオキシキノリン誘導体の製造方法およびその中間体 Download PDFInfo
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- WO2010007964A1 WO2010007964A1 PCT/JP2009/062673 JP2009062673W WO2010007964A1 WO 2010007964 A1 WO2010007964 A1 WO 2010007964A1 JP 2009062673 W JP2009062673 W JP 2009062673W WO 2010007964 A1 WO2010007964 A1 WO 2010007964A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/20—Oxygen atoms
- C07D215/22—Oxygen atoms attached in position 2 or 4
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/52—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
- C07C229/54—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring
- C07C229/64—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring the carbon skeleton being further substituted by singly-bound oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/20—Oxygen atoms
Definitions
- the present invention relates to a method for producing a 6-aryloxyquinoline derivative useful as an agricultural chemical or a pharmaceutical, and a 4-aryloxyanthranilic acid derivative which is a synthetic intermediate suitably used in this production method.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2008-110593 (Patent Document 2), and International Publication No. 2007/088978 (Patent Document 3) include 6-aryloxyquinoline derivatives.
- 6-aryloxyquinoline derivatives are useful compounds as agricultural and horticultural insecticides or as agricultural and horticultural fungicides. These 6-aryloxyquinoline derivatives have high insecticidal activity against Lepidoptera, Hemiptera, Coleoptera, Mite, Hymenoptera, Diptera, Diptera, Thripidae, and plant parasitic nematodes It is a compound which shows.
- 6-aryloxyquinoline derivatives are also effective against various phytopathogenic fungi as agricultural and horticultural fungicides, such as cucumber powdery mildew, wheat red rust, barley powdery mildew, tomato ring mold It is known as a compound having a bactericidal effect on apple black rot, peach ash rot, and strawberry anthracnose.
- a 4-aryloxyaniline derivative is reacted with a ⁇ -ketocarboxylic acid ester, and the 6-aryloxyquinoline derivative is passed through to react with the 6-aryloxyquinoline derivative.
- a method for producing the derivative is disclosed. However, with this method, the yield in the cyclization reaction remains low to moderate.
- a mixture of a 5-position substituted product and a 7-position substituted product is obtained.
- the present inventors By using a synthetic route via a 4-aryloxyanthranilic acid derivative for the production of a 6-aryloxyquinoline derivative, the present inventors remarkably improve the efficiency of the quinoline ring construction reaction, and at the same time, the 6-aryloxyquinoline It has been found that regioselective introduction of a substituent into the 5-position or 7-position of the derivative becomes possible, whereby the desired 6-aryloxyquinoline derivative can be efficiently obtained in high yield. Furthermore, the present inventors have also found a method for efficiently producing the 4-aryloxyanthranilic acid derivative in a high yield. The present invention is based on these findings.
- an object of the present invention is to provide a method for producing a 6-aryloxyquinoline derivative and a method for producing a 4-aryloxyanthranilic acid derivative which is an intermediate for the production.
- a method for producing a quinoline derivative comprising: (i) in the presence of an acid, general formula (1): [Where, R 1, R 2 and R 3 independently of one another, a hydrogen atom, a halogen atom, optionally substituted by halogen atom C 1-4 alkyl group or optionally substituted by halogen atom, C 1-4 Represents an alkoxy group, provided that R 1 , R 2 and R 3 do not represent a hydrogen atom at the same time; R 4 represents a hydrogen atom or a carboxylic acid protecting group, R 5 , R 6 , R 7 , R 8 and R 9 are each independently a hydrogen atom, a halogen atom, a C 1-8 alkyl group which may be substituted by a halogen atom, or a halogen atom A good C 1-8 alkoxy group, a C 1-8 alkylthio group which may be substituted by a halogen atom
- R 10 and R 11 together represent — (CH 2 ) m — (where m represents 3 or 4).
- a ketone represented by the general formula (3) [Wherein R 1 , R 2 , R 3 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 and R 11 are as defined above]
- R 12 is a C 1-8 alkyl group which may be substituted with a halogen atom, a C 3-6 cyclic alkyl group which may be substituted with a halogen atom, or a halogen atom.
- C 2-4 alkenyl group OR 13 (wherein R 13 is a C 1-8 alkyl group optionally substituted by a halogen atom, a C 3-6 cyclic alkyl group optionally substituted by a halogen atom, or Represents a C 2-4 alkenyl group optionally substituted by a halogen atom), SR 14 (where R 14 is a C 1-8 alkyl group optionally substituted by a halogen atom, substituted by a halogen atom)
- Y represents any one of fluorine, chlorine, bromine, and iodine.
- a method for producing an anthranilic acid derivative comprising: (i) in the presence or absence of a base, general formula (7): [Where, R 1, R 2 and R 3 independently of one another, a hydrogen atom, a halogen atom, optionally substituted by halogen atom C 1-4 alkyl group or optionally substituted by halogen atom, C 1-4 Represents an alkoxy group, provided that R 1 , R 2 and R 3 do not represent a hydrogen atom at the same time; R 4 represents a hydrogen atom or a carboxylic acid protecting group, X represents any one of fluorine, chlorine, bromine and iodine.
- a method for producing a quinoline derivative which comprises the above-mentioned etherification step (A), reduction step (B), cyclization reaction step (C) and condensation reaction. Step (D) is included.
- anthranilic acid derivative represented by the general formula (1) is an important intermediate in the production of the quinoline derivative represented by the general formula (6), and the novel compound contained in the general formula (1) is one of the present invention. Form an embodiment.
- the present invention it is possible to produce a 6-aryloxyquinoline derivative having excellent insecticidal activity or bactericidal activity in a high yield.
- a 6-aryloxyquinoline derivative can be efficiently obtained in high yield.
- substituents can be introduced regioselectively at all sites of the quinoline ring, so that desired quinoline derivatives having various types of substituents simultaneously at multiple sites can be selectively selected. Can be manufactured. Therefore, according to the present invention, it is possible to obtain a desired 6-aryloxyquinoline derivative with high purity without requiring a complicated isolation and purification step. Therefore, the method according to the present invention is suitable for mass production of a specific 6-aryloxyquinoline derivative and is an industrially advantageous method.
- halogen atom means fluorine, chlorine, bromine or iodine, preferably fluorine, chlorine or bromine, more preferably chlorine or fluorine.
- cyclic alkyl group means that the alkyl group contains at least one cyclic structure.
- examples of the cyclic alkyl group include a cycloalkyl group, an alkyl group substituted with one or more cycloalkyl groups, and these may be further substituted with one or more alkyl groups.
- the C 1-4 alkyl group represented by R 1 , R 2 and R 3 may be linear or branched.
- This C 1-4 alkyl group is preferably a straight chain C 1-4 alkyl group, and examples thereof include a methyl group, an ethyl group, a propyl group, and an n-butyl group, and more preferably a methyl group or an ethyl group. It is said.
- the C 1-4 alkyl group represented by R 1 , R 2 and R 3 may be substituted with a halogen atom.
- Examples of the C 1-4 alkyl group represented by R 1 , R 2 and R 3 substituted with a halogen atom include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, and (1- or 2-) chloroethyl.
- the C 1-4 alkyl group represented by R 1 , R 2 and R 3 may be substituted with a C 1-4 alkoxy group.
- Examples of the C 1-4 alkyl group substituted by the C 1-4 alkoxy group represented by R 1 , R 2 and R 3 include a methoxymethyl group.
- the C 1-4 alkoxy group represented by R 1 , R 2 and R 3 may be linear or branched.
- the C 1-4 alkoxy group is preferably a straight chain C 1-4 alkoxy group, and examples thereof include a methoxy group, an ethoxy group, an n-propyloxy group, and an n-butyloxy group, and more preferably a methoxy group. Or an ethoxy group.
- the C 1-4 alkoxy group represented by R 1 , R 2 and R 3 may be substituted with a halogen atom.
- Examples of the C 1-4 alkoxy group represented by R 1 , R 2 and R 3 substituted with a halogen atom include a trifluoromethoxy group, trichloromethoxy group, difluoromethoxy group, dichloromethoxy group, 2,2, Examples include 2-trifluoroethoxy group, 2,2,2-trichloroethoxy group, 1,1,2,2-tetrafluoroethoxy group, pentafluoroethoxy group, and pentachloroethoxy group.
- R 1 , R 2 and R 3 are independently of one another hydrogen, chlorine, bromine, fluorine, methyl, ethyl, methoxy, ethoxy, or tri Represents a fluoromethyl group (wherein R 1 , R 2 and R 3 do not represent a hydrogen atom at the same time), more preferably any one of R 1 , R 2 and R 3 is a methyl group, ethyl Group, or a trifluoromethyl group, and the remaining two represent a hydrogen atom.
- R 4 represents a hydrogen atom or a carboxylic acid protecting group.
- the carboxylic acid protecting group represented by R 4 is not particularly limited as long as it is a generally known carboxylic acid protecting group.
- Specific examples of the carboxylic acid protecting group include, for example, a halogen atom or a C 1-8 alkyl group which may be substituted with a halogen atom or a C 1-4 alkoxy group which may be substituted with a halogen atom, or a halogen atom.
- R 4 is a halogen atom or a C 1-8 alkyl group optionally substituted by a C 1-4 alkoxy group optionally substituted by a halogen atom, substituted by a halogen atom
- R 4 represents a C 1-4 alkyl group optionally substituted by a halogen atom.
- the C 1-8 alkyl group represented by R 4 may be linear or branched.
- the C 1-8 alkyl group represented by R 4 may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group substituted by a halogen atom represented by R 4 include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, a (1- or 2-) chloroethyl group, 2,2, Examples include 2-trifluoroethyl group, 1,1,2,2-tetrafluoroethyl group, and pentafluoroethyl group.
- the C 1-8 alkyl group represented by R 4 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group represented by R 4 and substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom include a 2-trifluoromethoxyethyl group.
- C 3-8 cyclic alkyl group which may be substituted with a halogen atom represented by R 4 include a cyclopropylmethyl group, a cyclopropylethyl group, a cyclopropylpropyl group, a 1-methylcyclopropylmethyl group, 2- (1-methylcyclopropyl) ethyl group, 3- (1-methylcyclopropyl) propyl group, 2,2-dimethylcyclopropylmethyl group, 2- (2,2-dimethylcyclopropyl) ethyl group, 3- (2,2-dimethylcyclopropyl) propyl group, 2,2-dichlorocyclopropylmethyl group, 2- (2,2-dichlorocyclopropyl) ethyl group, 3- (2,2-dichlorocyclopropyl) propyl group, 2,2-difluorocyclopropylmethyl group, 2- (2,2-difluorocyclopropyl) ethyl group,
- C 1-4 alkoxymethyl group represented by R 4 examples include a methoxymethyl group, an ethoxymethyl group, a propyloxymethyl group, and a butoxymethyl group.
- benzoylmethyl group optionally represented by a halogen atom represented by R 4 include a benzoylmethyl group, a chlorobenzoylmethyl group, a trichlorobenzoylmethyl group, and a pentachlorobenzoylmethyl group.
- C 7-14 aralkyl group optionally substituted by a halogen atom, a C 1-4 alkyl group or a C 1-4 alkoxy group represented by R 4 include a benzyl group, a 4-methylbenzyl group, 2 , 4,6-trimethylbenzyl group, 3-methoxybenzyl group, 4-methoxybenzyl group, 4-chlorobenzyl group, 2-phenylethyl group, etc., preferably benzyl group.
- the C 1-8 alkyl group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched, for example, methyl group, ethyl group, propyl group, i-propyl Group, n-butyl group, i-butyl group, s-butyl group, t-butyl group, n-pentyl group, (2- or 3-methyl) butyl group, 2,3-dimethylpropyl group, n-hexyl group , (2,3 or 4-methyl) pentyl group, (2,3-, 2,4- or 3,4-dimethyl) butyl group, 2,3,4-trimethylpropyl group, n-heptyl group, and n An octyl group, preferably a methyl group or an ethyl group.
- the C 1-8 alkyl group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, (1 -Or 2-) a chloroethyl group, a 2,2,2-trifluoroethyl group, a 1,1,2,2-tetrafluoroethyl group, and a pentafluoroethyl group, preferably a trifluoromethyl group or pentafluoro Ethyl group.
- the C 1-8 alkyl group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group represented by R 5 , R 6 , R 7 , R 8 and R 9 and substituted with a C 1-4 alkoxy group optionally substituted with a halogen atom include 2- A trifluoromethoxyethyl group is mentioned.
- the C 1-8 alkoxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched.
- the C 1-8 alkoxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a halogen atom.
- Examples of the C 1-8 alkoxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 substituted by a halogen atom include a trifluoromethoxy group, a trichloromethoxy group, a difluoromethoxy group, and dichloromethoxy.
- 2,2,2-trifluoroethoxy group, 2,2,2-trichloroethoxy group, 1,1,2,2-tetrafluoroethoxy group, pentafluoroethoxy group, and pentachloroethoxy group Preferably, it is a trifluoromethoxy group, a difluoromethoxy group, or a 1,1,2,2-tetrafluoroethoxy group, more preferably a trifluoromethoxy group or a 1,1,2,2-tetrafluoroethoxy group.
- the C 1-8 alkylthio group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched.
- the C 1-8 alkylthio group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a halogen atom.
- Examples of the C 1-8 alkylthio group substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include a trifluoromethylthio group, a trichloromethylthio group, a difluoromethylthio group, a dichloromethylthio group.
- trifluoroethylthio group trifluoroethylthio group, trichloroethylthio group, tetrafluoroethylthio group, tetrachloroethylthio group, pentafluoroethylthio group, pentachloroethylthio group, heptafluoro-n-propylthio group, and heptafluoro-i-propylthio group
- trifluoromethylthio group trichloromethylthio group, difluoromethylthio group, dichloromethylthio group, trifluoroethylthio group, trichloroethylthio group, tetrafluoroethylthio group, tetrachloroethylthio group , A heptafluoro-n-propylthio group, or a heptafluoro-i-propyl
- the C 2-4 alkenyloxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched, for example, a vinyloxy group, (1- or 2-) propenyl Examples thereof include an oxy group, a (1-, 2- or 3-) butenyloxy group, a 1-methylvinyloxy group, a 1-methyl-1-propenyloxy group, and a 2-methyl-1-propenyloxy group.
- This C 2-4 alkenyloxy group is preferably a straight chain C 2-4 alkenyloxy group such as a vinyloxy group, a (1- or 2-) propenyloxy group, and (1-, 2- or 3- ) Butenyloxy group.
- R 5, R 6, R 7 , C 2-4 alkenyloxy group R 8 and R 9 represents may be substituted by a halogen atom.
- Examples of the C 2-4 alkenyloxy group substituted with a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include a 2-fluorovinyloxy group, a 2-chlorovinyloxy group, Examples include 2,2-difluorovinyloxy group, 2,2-dichlorovinyloxy group, and 3,3-dichloro (1- or 2-) propenyloxy group.
- the C 2-4 alkenyloxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 2-4 alkenyloxy group substituted by a C 1-4 alkoxy group optionally substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include 2 A trifluoromethoxyvinyloxy group;
- the C 2-4 alkenylthio group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched, for example, vinylthio group, (1- or 2-) propenyl Examples include a thio group, a (1-, 2- or 3-) butenylthio group, a 1-methylvinylthio group, a 1-methyl-1-propenylthio group, and a 2-methyl-1-propenylthio group.
- This C 2-4 alkenylthio group is preferably a straight chain C 2-4 alkenylthio group, for example, a vinylthio group, a (1- or 2-) propenylthio group, (1-, 2- or 3-) A butenylthio group is mentioned.
- the C 2-4 alkenylthio group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a halogen atom.
- Examples of the C 2-4 alkenylthio group substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include a 2-fluorovinylthio group, a 2-chlorovinylthio group, Examples include 2,2-difluorovinylthio group and 2,2-dichlorovinylthio group.
- the C 2-4 alkenylthio group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 2-4 alkenylthio group substituted by a C 1-4 alkoxy group optionally substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include 2 A trifluoromethoxyvinylthio group.
- the C 2-4 alkynyloxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be linear or branched, for example, an ethynyloxy group, (1- or 2-) Examples thereof include a propynyloxy group, a (1-, 2- or 3-) butynyloxy group, a 1-methylethynyloxy group, a 1-methyl-1-propynyloxy group, and a 2-methyl-1-propynyloxy group.
- This C 2-4 alkynyloxy group is preferably a straight chain C 2-4 alkynyloxy group, for example, an ethynyloxy group, a (1- or 2-) propynyloxy group, and (1-, 2- or 3 -) A butynyloxy group is mentioned.
- the C 2-4 alkynyloxy group represented by R 5 , R 6 , R 7 , R 8 and R 9 may be substituted with a halogen atom.
- Examples of the C 2-4 alkynyloxy group substituted by a halogen atom represented by R 5 , R 6 , R 7 , R 8 and R 9 include, for example, a fluoroethynyloxy group, a chloroethynyloxy group, and 3-chloro (1- or 2-) propynyloxy group may be mentioned.
- n —O— (CH 2 ) optionally substituted by one or more halogen atoms, which represents two adjacent substituents of any of R 5 , R 6 , R 7 , R 8 and R 9 taken together.
- n —O— (n represents 1 or 2) is, for example, —O— (CF 2 ) 2 —O—, —O— (CH 2 ) 2 —O—, —O—CH 2 CF 2 —.
- O—, —O—CHFCF 2 —O— and the like are mentioned, and preferably —O— (CF 2 ) 2 —O—.
- R 5 , R 6 , R 7 , R 8 and R 9 are independently of each other a hydrogen atom, chlorine atom, bromine atom, fluorine atom, methyl group, ethyl group, methoxy group Represents an ethoxy group, a trifluoromethyl group, a pentafluoroethyl group, a trifluoromethoxy group, or a 1,1,2,2-tetrafluoroethoxy group, or R 6 and R 7 together represent —OCF 2 CF Represents 2 O-.
- any one of R 5 , R 6 , R 7 , R 8 and R 9 is a methoxy group, an ethoxy group, a trifluoromethoxy group, or 1,1,2,2-tetra Represents a fluoroethoxy group, and the remaining four represent hydrogen atoms.
- the C 1-4 alkyl group represented by R 10 and R 11 may be linear or branched.
- the C 1-4 alkyl group represented by R 10 and R 11 may be substituted with a halogen atom.
- Examples of the C 1-4 alkyl group substituted by a halogen atom represented by R 10 and R 11 include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, a (1- or 2-) chloroethyl group, 2 , 2,2-trifluoroethyl group, 1,1,2,2-tetrafluoroethyl group, pentafluoroethyl group.
- the C 1-4 alkyl group represented by R 10 and R 11 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- R 10 and R 11 is represented as a C 1-4 alkyl group substituted by optionally C 1-4 alkoxy group optionally substituted by a halogen atom, for example, 2-trifluoromethoxy-ethyl.
- R 10 and R 11 independently of each other represent a hydrogen atom or a C 1-4 alkyl group optionally substituted by a halogen atom, provided that R 10 and R 11 are It does not represent a hydrogen atom at the same time.
- R 10 and R 11 independently of one another represent a C 1-4 alkyl group which may be substituted by a halogen atom.
- the C 1-4 alkyl group in these embodiments is preferably a straight chain C 1-4 alkyl group.
- R 10 represents -CH 2 -R 15
- R 11 represents R
- R 15 represents a C 1-3 alkyl group.
- the C 1-3 alkyl group represented by R 15 may be linear or branched, but is preferably a linear C 1-3 alkyl group, more preferably a methyl group.
- the C 1-8 alkyl group represented by R 12 , R 13 and R 14 may be linear or branched.
- the C 1-8 alkyl group represented by R 12 , R 13 and R 14 may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group substituted by a halogen atom represented by R 12 , R 13 and R 14 include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, (1- or 2-) chloroethyl Groups, 2,2,2-trifluoroethyl group, 1,1,2,2-tetrafluoroethyl group, and pentafluoroethyl group.
- the C 1-8 alkyl group represented by R 12 , R 13 and R 14 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 1-8 alkyl group represented by R 12 , R 13 and R 14 and substituted with a C 1-4 alkoxy group optionally substituted with a halogen atom include a 2-trifluoromethoxyethyl group. Can be mentioned.
- C 3-6 cyclic alkyl group which may be substituted with a halogen atom represented by R 12 , R 13 and R 14 include a cyclopropylmethyl group, a cyclopropylethyl group, a cyclopropylpropyl group, 1- Methylcyclopropylmethyl group, 2- (1-methylcyclopropyl) ethyl group, 2,2-dimethylcyclopropylmethyl group, 2,2-dichlorocyclopropylmethyl group, 2- (2,2-dichlorocyclopropyl) ethyl Group, 3- (2,2-dichlorocyclopropyl) propyl group, 2,2-difluorocyclopropylmethyl group, 2- (2,2-difluorocyclopropyl) ethyl group, 3- (2,2-difluorocyclopropyl) ) A propyl group and a cyclohexyl group.
- the C 2-4 alkenyl group represented by R 12 , R 13 and R 14 may be linear or branched.
- This C 2-4 alkenyl group is preferably a straight chain C 2-4 alkenyl group such as a vinyl group, a (1- or 2-) propenyl group, and a (1-, 2- or 3-) butenyl group. Is mentioned.
- the C 2-4 alkenyl group represented by R 12 , R 13 and R 14 may be substituted with a halogen atom.
- Examples of the C 2-4 alkenyl group substituted with a halogen atom represented by R 12 , R 13 and R 14 include a 2-fluorovinyl group, a 2-chlorovinyl group, a 2,2-difluorovinyl group, and A 2,2-dichlorovinyl group may be mentioned.
- the C 2-4 alkenyl group represented by R 12 , R 13 and R 14 may be substituted with a C 1-4 alkoxy group which may be substituted with a halogen atom.
- Examples of the C 2-4 alkenyl group substituted by a C 1-4 alkoxy group optionally substituted by a halogen atom represented by R 12 , R 13 and R 14 include a 2-trifluoromethoxyvinyl group. Can be mentioned.
- R 12 is optionally substituted by halogen atom C 1-4 alkyl group or OR 13 (wherein R 13 is optionally C 1 optionally substituted by a halogen atom, -4 represents an alkyl group).
- R 12 represents OR 13 where R 13 represents a C 1-4 alkyl group.
- the C 1-4 alkyl group in these embodiments is preferably a straight chain C 1-4 alkyl group, more preferably a methyl group.
- the C 1-4 alkyl group represented by R 1a , R 2a and R 3a may be linear or branched, for example, methyl group, ethyl group, propyl group, i-propyl group, n-butyl group , I-butyl group, s-butyl group, and t-butyl group.
- the C 1-4 alkyl group represented by R 1a , R 2a and R 3a is preferably a linear C 1-4 alkyl group.
- the C 1-4 alkyl group represented by R 4a may be linear or branched.
- a methyl group, ethyl group, propyl group, i-propyl group, n-butyl group, i-butyl group examples thereof include an s-butyl group and a t-butyl group, and an i-propyl group is preferable.
- these C 1-4 alkyl groups may be substituted with a halogen atom.
- the C 1-4 alkyl group substituted by a halogen atom include a chloromethyl group, a trichloromethyl group, a trifluoromethyl group, a (1- or 2-) chloroethyl group, and 2,2,2-trifluoroethyl.
- the C 1-8 alkoxy group represented by R 5a , R 6a , R 7a , R 8a and R 9a may be linear or branched.
- the C 1-8 alkoxy group may be substituted with a halogen atom.
- Examples of the C 1-8 alkoxy group substituted by a halogen atom include a trifluoromethoxy group, trichloromethoxy group, difluoromethoxy group, dichloromethoxy group, 2,2,2-trifluoroethoxy group, 2,2, Examples include 2-trichloroethoxy group, 1,1,2,2-tetrafluoroethoxy group, pentafluoroethoxy group, and pentachloroethoxy group.
- Substituents R 1a ⁇ R 9a in the general formula (1a) are those corresponding to the general formula (1) substituent R 1 ⁇ R 9 in. Thus, preferred embodiments described above for the substituents R 1 ⁇ R 9 is applied to the substituents R 1a ⁇ R 9a.
- R 1 to R 9 , R 1 , R 2 and R 3 are independently of one another hydrogen, chlorine, bromine, fluorine, methyl, ethyl, Represents a methoxy group, an ethoxy group, or a trifluoromethyl group, provided that R 1 , R 2, and R 3 do not represent a hydrogen atom at the same time, and R 4 is a halogen atom or a C atom optionally substituted by a halogen atom
- a C 1-8 alkyl group which may be substituted with a 1-4 alkoxy group, a C 3-8 cyclic alkyl group which may be substituted with a halogen atom, or a halogen atom, a C 1-4 alkyl group or a C 1- 4 be substituted by an alkoxy group represents an even better C 7-14 aralkyl group
- R 5, R 6, R 7, R 8 and R 9 independently of one another, hydrogen Child, chlorine atom,
- any one of R 1 , R 2 and R 3 represents a methyl group, an ethyl group or a trifluoromethyl group, the remaining two represent a hydrogen atom
- R 4 represents Represents a C 1-4 alkyl group which may be substituted by a halogen atom
- any one of R 5 , R 6 , R 7 , R 8 and R 9 is a methoxy group, an ethoxy group or a trifluoromethoxy group Or 1,1,2,2-tetrafluoroethoxy group, and the remaining four represent hydrogen atoms.
- R 1 to R 12 , R 1 , R 2 and R 3 are independently of each other a hydrogen atom, a chlorine atom, a bromine atom, a fluorine atom, a methyl group, an ethyl group, Represents a methoxy group, an ethoxy group, or a trifluoromethyl group, provided that R 1 , R 2, and R 3 do not represent a hydrogen atom at the same time, and R 4 is a halogen atom or a C atom optionally substituted by a halogen atom
- a C 1-8 alkyl group which may be substituted with a 1-4 alkoxy group, a C 3-8 cyclic alkyl group which may be substituted with a halogen atom, or a halogen atom, a C 1-4 alkyl group or a C 1- 4 represents an alkoxy group optionally substituted C 7-14 optionally aralkyl group, R 5, R
- any one of R 1 , R 2 and R 3 represents a methyl group, an ethyl group or a trifluoromethyl group, the remaining two represent a hydrogen atom
- R 4 represents Represents a C 1-4 alkyl group which may be substituted by a halogen atom
- any one of R 5 , R 6 , R 7 , R 8 and R 9 is a methoxy group, an ethoxy group or a trifluoromethoxy group Or a 1,1,2,2-tetrafluoroethoxy group, the remaining four represent a hydrogen atom
- R 10 and R 11 are each independently C 1-4 optionally substituted with a halogen atom
- R 12 represents OR 13 (wherein R 13 represents a C 1-4 alkyl group).
- Steps (A) to (D) constituting the method according to the invention In the method according to the present invention, a phenol derivative represented by the general formula (8) is reacted with a nitrobenzoic acid derivative represented by the general formula (7) in the presence or absence of a base, and the reaction is represented by the general formula (9).
- An etherification step (A) to obtain an ether derivative and then a reduction step (B) to reduce the obtained ether derivative to an anthranilic acid derivative represented by the general formula (1).
- An anthranilic acid derivative represented by the general formula (1) can be obtained.
- Etherification step (A) In the etherification step (A), in the presence or absence of a base, a nitrobenzoic acid derivative represented by the general formula (7) is reacted with a phenol derivative represented by the general formula (8) to obtain a general formula (9) Is an ether derivative represented by the formula: This etherification step (A) is preferably carried out in the presence of a base.
- ether derivative represented by the general formula (9) include, for example, methyl 4-methyl-2-nitro-5- (4-trifluoromethoxyphenoxy) benzoate, 4-methyl-2-nitro-5- (4-Trifluoromethoxyphenoxy) ethyl benzoate, 4-methyl-2-nitro-5- (4-trifluoromethoxyphenoxy) benzoate isopropyl, 2,4-dimethyl-6-nitro-3- (4-tri Fluoromethoxyphenoxy) methyl benzoate, 4-methyl-2-nitro-5- (4- (1,1,2,2-tetrafluoroethoxy) phenoxy) methyl benzoate, 4-methyl-2-nitro-5- (2,2,3,3-tetrafluoro-2,3-dihydrobenzodioxin-6-yloxy) methyl benzoate, 5- (2-chloro-4-trifluol) Romethoxyphenoxy) -4-methyl-2-nitrobenzoic acid methyl, 4-methoxy-2-nitro-5- (4- (1,1,2,2-te
- the etherification step (A) is performed in the presence or absence of a solvent.
- the solvent used is not particularly limited as long as it does not inhibit the reaction.
- examples of such a solvent include aliphatic hydrocarbons such as pentane, hexane, heptane, 2-methylbutane, 2-methylpentane, 2-methylhexane, cyclopentane, cyclohexane, cycloheptane; methylene chloride, chloroform, dichloroethane.
- Halogenated aliphatic hydrocarbons such as benzene, toluene, xylene, mesitylene and the like; halogenated aromatic hydrocarbons such as chlorobenzene and dichlorobenzene; ethers such as diisopropyl ether, tetrahydrofuran and dioxane; Alcohols such as methanol, ethanol, isopropyl alcohol, 2-butyl alcohol and t-butyl alcohol; organic carboxylic acids such as acetic acid and propionic acid; amides such as dimethylformamide and dimethylacetamide; It is below.
- the amount of the solvent used is preferably 2 to 50 times by mass, more preferably 2 to 10 times by mass with respect to the nitrobenzoic acid derivative. These solvents may be used alone or in admixture of two or more.
- the etherification step (A) is performed in the presence or absence of a base.
- the base used include inorganic bases such as alkali metal or alkaline earth metal carbonates or hydroxides; organic bases such as nitrogen-containing organic bases; metal alkoxides; and metal hydrides.
- inorganic bases such as alkali metal or alkaline earth metal carbonates or hydroxides
- organic bases such as nitrogen-containing organic bases
- metal alkoxides such as potassium carbonate, sodium carbonate, calcium carbonate, sodium bicarbonate, sodium hydroxide, pyridine, triethylamine, sodium methoxide, sodium ethoxide, sodium butoxide, or sodium hydride.
- the amount of the base used is preferably 0 to 5.0 times mol, more preferably 0.5 to 2.0 times mol, with respect to the phenol derivative.
- the etherification step (A) it is preferable to contact the nitrobenzoic acid derivative and the phenol derivative in a liquid phase in the presence of a base.
- a base for example, in an inert gas atmosphere, the base, the nitrobenzoic acid derivative, the phenol derivative, and the solvent Are mixed under normal pressure, under pressure or under reduced pressure by a method such as heating and stirring.
- the reaction temperature at that time is preferably 50 to 200 ° C., more preferably 80 to 150 ° C. You may use a phenol derivative in the state which formed the said base and salt.
- the ether derivative obtained as a main product in the etherification step (A) may be used as it is in the next reduction step (B) without any post-treatment after the reaction is completed, or may be extracted, distilled, precipitated. It is isolated and purified by a simple general post-treatment operation such as analysis, and if necessary, it is separated and purified by a method such as recrystallization or column chromatography and then used in the next reduction step (B). Also good.
- the reduction step (B) is a step of reducing the ether derivative represented by the general formula (9) to obtain an anthranilic acid derivative represented by the general formula (1).
- the reduction reaction in the reduction step (B) is not particularly limited as long as it is a general reduction method for converting a nitro group to an amino group.
- Examples of such a reduction reaction include reduction with an aluminum hydride compound, reduction with hydrogen in the presence of Raney nickel, reduction with hydrogen in the presence of palladium, reduction with iron powder, reduction with stannous chloride, and the like.
- the reduction in the reduction step (B) is performed by hydrogenation in the presence of palladium or using iron powder.
- the reduction reaction in the reduction step (B) is performed in the presence or absence of a solvent.
- the solvent used is not particularly limited as long as it does not inhibit the reaction.
- examples of such solvents include water, alcohols such as methanol, ethanol, and propanol, aromatic hydrocarbons such as benzene, toluene, and xylene, ethers such as diisopropyl ether and tetrahydrofuran, and amides such as dimethylformamide and dimethylacetamide.
- water or alcohols more preferably water, methanol, or ethanol is used.
- the amount of the solvent used is preferably 2 to 50 times by mass, more preferably 3 to 20 times by mass with respect to the ether derivative. These solvents may be used alone or in admixture of two or more.
- the ether derivative is preferably reacted in the liquid phase in the presence of a catalyst.
- a catalyst for example, the ether derivative, palladium carbon and methanol are mixed and heated and stirred in a hydrogen atmosphere.
- the reduction is carried out under normal pressure or under pressure.
- the reaction temperature at that time is preferably 20 to 110 ° C., more preferably 30 to 80 ° C.
- the anthranilic acid derivative obtained as a main product by the reduction step (B) may be used as it is in the next cyclization reaction step (C) without any post-treatment after the completion of the reaction, or may be extracted, distilled, It is isolated and purified by a simple general post-treatment operation such as precipitation, and after separation and purification by a method such as recrystallization or column chromatography, if necessary, the next cyclization reaction step (C) is performed. May be used.
- Cyclization reaction step (C) In the cyclization reaction step (C), in the presence of an acid, a ketone represented by the general formula (2) is reacted with an anthranilic acid derivative represented by the general formula (1) to obtain a quinolone represented by the general formula (3). This is a process of making a derivative.
- Examples of the acid used in the cyclization reaction step (C) include organic sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, p-bromobenzenesulfonic acid, p-toluenesulfonic acid, camphorsulfonic acid; Lewis acids such as zinc chloride, iron chloride, aluminum chloride, tin chloride, titanium chloride, boron fluoride, boron chloride; inorganic acids such as phosphoric acid, pyrophosphoric acid, polyphosphoric acid, sulfuric acid, hydrochloric acid; monochloroacetic acid, dichloroacetic acid, tri Examples include halogenated organic carboxylic acids such as fluoroacetic acid, and organic sulfonic acids or Lewis acids are preferred.
- organic sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid,
- the organic sulfonic acid is preferably benzenesulfonic acid or p-toluenesulfonic acid.
- the Lewis acid is preferably zinc chloride, iron chloride, titanium chloride or aluminum chloride.
- the amount of the acid used is preferably 0.1 to 5.0 moles, more preferably 0.5 to 3.0 moles, relative to the anthranilic acid derivative.
- the cyclization reaction step (C) is performed in the presence or absence of a solvent.
- the solvent used is not particularly limited as long as it does not inhibit the reaction.
- examples of such a solvent include aliphatic hydrocarbons such as pentane, hexane, heptane, 2-methylbutane, 2-methylpentane, 2-methylhexane, cyclopentane, cyclohexane, cycloheptane; methylene chloride, chloroform, dichloroethane.
- Halogenated aliphatic hydrocarbons such as benzene, toluene, xylene, mesitylene and the like; halogenated aromatic hydrocarbons such as chlorobenzene and dichlorobenzene; ethers such as diisopropyl ether, tetrahydrofuran and dioxane; Examples include alcohols such as methanol, ethanol, isopropyl alcohol, 2-butyl alcohol, and t-butyl alcohol; and organic carboxylic acids such as acetic acid and propionic acid.
- the amount of the solvent used is preferably 2 to 50 times by mass, more preferably 3 to 10 times by mass with respect to the anthranilic acid derivative. These solvents may be used alone or in admixture of two or more.
- the ketone and the anthranilic acid derivative are preferably brought into contact with each other in the liquid phase in the presence of an acid.
- the acid, the ketone, the anthranilic acid derivative and the solvent are mixed in an inert gas atmosphere.
- the cyclization is carried out under normal pressure, under pressure or under reduced pressure by a method such as heating and stirring.
- the reaction temperature at that time is preferably 50 to 200 ° C., more preferably 80 to 150 ° C.
- the anthranilic acid derivative may be used in the state of forming a salt with the above acid.
- Examples of the ketone represented by the general formula (2) include acetone, methyl ethyl ketone, methyl propyl ketone, methyl isobutyl ketone, 3-pentanone, ethyl butyl ketone, ethyl propyl ketone, cyclohexyl ethyl ketone, ethyl hexyl ketone, cyclohexenone and cyclopenta.
- Non-methyl, methyl heptafluoropropyl ketone, pentafluoroethyl ethyl ketone and the like can be mentioned, and acetone, methyl ethyl ketone and 3-pentanone are preferable.
- the quinolone derivative obtained as the main product by the cyclization reaction step (C) may be used as it is in the subsequent condensation reaction step (D) without any post-treatment after the completion of the reaction, or may be extracted, distilled, Used for the next condensation reaction step (D) after isolation and purification by simple general post-treatment operations such as precipitation, and if necessary, separation and purification by methods such as recrystallization and column chromatography. May be.
- Condensation reaction step (D) In the condensation reaction step (D), a quinolone derivative represented by the general formula (3) is reacted with a halogen compound represented by the general formula (4) or an acid anhydride represented by the general formula (5) to give a general formula (6 And a quinoline derivative represented by:
- halogen compound represented by the general formula (4) examples include acetyl chloride, propionic acid chloride, butanoic acid chloride, cyclopropylcarboxylic acid chloride, cyclopentylcarboxylic acid chloride, cyclohexylcarboxylic acid chloride, and n-hexanoic acid chloride.
- N-octanoic acid chloride N-octanoic acid chloride, n-nonanoic acid chloride, 2,2-dimethylpropanoic acid chloride, acrylic acid chloride, methacrylic acid chloride, crotonic acid chloride, isocrotonic acid chloride, methyl chloroformate, ethyl chloroformate, isopropyl chloroformate, etc.
- acid anhydride represented by the general formula (5) examples include acetic anhydride, chloroacetic anhydride, trifluoroacetic anhydride, cyclohexanecarboxylic acid anhydride, and the like.
- the condensation reaction step (D) is performed in the presence or absence of a solvent.
- the solvent used is not particularly limited as long as it does not inhibit the reaction.
- examples of such a solvent include aliphatic hydrocarbons such as pentane, hexane, heptane, 2-methylbutane, 2-methylpentane, 2-methylhexane, cyclopentane, cyclohexane, cycloheptane; methylene chloride, chloroform, dichloroethane.
- Halogenated aliphatic hydrocarbons such as benzene, toluene, xylene, mesitylene and the like; halogenated aromatic hydrocarbons such as chlorobenzene and dichlorobenzene; ethers such as diisopropyl ether, tetrahydrofuran and dioxane; Alcohols such as methanol, ethanol, isopropyl alcohol, 2-butyl alcohol and t-butyl alcohol; organic carboxylic acids such as acetic acid and propionic acid; amides such as dimethylformamide and dimethylacetamide; It is below.
- the amount of the solvent used is preferably 2 to 50 times by mass, more preferably 3 to 10 times by mass with respect to the quinolone derivative. These solvents may be used alone or in admixture of two or more.
- the condensation reaction step (D) is performed in the presence or absence of a base.
- the base used include inorganic bases such as alkali metal or alkaline earth metal carbonates or hydroxides; organic bases such as nitrogen-containing organic bases; metal alkoxides; and metal hydrides.
- inorganic bases such as alkali metal or alkaline earth metal carbonates or hydroxides
- organic bases such as nitrogen-containing organic bases
- metal alkoxides such as potassium carbonate, sodium carbonate, calcium carbonate, sodium bicarbonate, sodium hydroxide, pyridine, triethylamine, sodium methoxide, sodium ethoxide, sodium butoxide, or sodium hydride.
- the amount of the base used is preferably 0 to 5.0 times mol, more preferably 0.5 to 2.0 times mol for the quinolone derivative.
- the quinolone derivative and the halogen compound are preferably contacted in the liquid phase in the presence of a base.
- a base for example, the base, the quinolone derivative, the halogen compound, and the solvent are mixed in an inert gas atmosphere.
- the condensation reaction is carried out under normal pressure, under pressure or under reduced pressure by a method such as stirring.
- the reaction temperature at that time is preferably ⁇ 50 to 100 ° C., more preferably ⁇ 10 to 50 ° C.
- the quinolone derivative may be used in the form of a salt with the above base.
- the quinoline derivative obtained as the main product by the condensation reaction step (D) may be used as it is without any post-treatment after the completion of the reaction, or a simple general post-treatment such as extraction, distillation, or precipitation. It may be used after being isolated and purified by a treatment operation and, if necessary, separated and purified by a method such as recrystallization or column chromatography.
- the nitrobenzoic acid derivative represented by the general formula (7) can be obtained by subjecting the amino group of the compound represented by the general formula (10) to substituent substitution according to the following scheme 1.
- the nitrobenzoic acid derivative represented by the general formula (7) can be obtained by nitration of the compound represented by the general formula (12) according to the following scheme 2.
- the compound represented by the general formula (10) or the compound represented by the general formula (12) can be generally purchased.
- quinoline derivative represented by the general formula (6) obtained by the method according to the present invention are shown in Table 1 below. These quinoline derivatives are useful as agricultural chemicals or pharmaceuticals.
- Example 1 Synthesis of isopropyl 4-methyl-2-nitro-5- (4- (trifluoromethoxy) phenoxy) benzoate , nitrogen atmosphere in a 2000 ml glass flask equipped with a stirrer, thermometer and reflux condenser Then, 716 ml of dimethylacetamide, 170 g of 4-trifluoromethoxyphenol, 246 g of isopropyl 5-chloro-4-methyl-2-nitrobenzoate and 263.9 g of potassium carbonate were added and the temperature was raised to 100 to 105 ° C. with stirring. After reacting at the same temperature for 37 hours, 360 ml of dimethylacetamide is distilled off under reduced pressure.
- Example 2 Synthesis of isopropyl 2-amino-4-methyl-5- (4- (trifluoromethoxy) phenoxy) benzoate Iron powder in a glass flask having a capacity of 2000 ml equipped with a stirrer, thermometer and reflux condenser 372.9 g, ethanol 1290 ml, water 531 ml, 35% hydrochloric acid 2.8 g were charged and heated to reflux. 373 g of isopropyl 4-methyl-2-nitro-5- (4- (trifluoromethoxy) phenoxy) benzoate dissolved in 398 ml of ethanol was added dropwise over 2 hours.
- Example 3 Synthesis of isopropyl 2-amino-4-methyl-5- (4- (trifluoromethoxy) phenoxy) benzoate and a thermometer equipped with a stainless steel autoclave with a capacity of 500 ml, 225 g of 80% methanol, 4 -Methyl-2-nitro-5- (4- (trifluoromethoxy) phenoxy) benzoic acid 50g, 5% palladium carbon 2.5g was charged and reacted at 30 ° C for 6 hours under hydrogen pressure (0.5MPa). It was. After nitrogen substitution, the reaction solution was filtered with 220 ml of methanol to remove the catalyst. The obtained methanol solution was concentrated under reduced pressure, and 208 ml of water was added. The precipitated solid was filtered and dried to obtain 43.96 g of isopropyl 2-amino-4-methyl-5- (4- (trifluoromethoxy) phenoxy) benzoate (yield 95%).
- Example 4 Synthesis of 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4 (1H) -one stirrer, thermometer, reflux condenser and Dean-Stark apparatus
- a 2000 ml capacity glass flask with a nitrogen atmosphere under a nitrogen atmosphere 171.4 g of isopropyl 2-amino-4-methyl-5- (4- (trifluoromethoxy) phenoxy) benzoate, 928 ml of mesitylene, 79.9 g of 3-pentanone and 16.3 g of benzenesulfonic acid monohydrate was added and the temperature was raised to reflux with stirring.
- the reaction was carried out for 90 hours while adding 8.2 g of benzenesulfonic acid monohydrate 8 times. After completion of the reaction, the mixture was cooled to 80 ° C., 232 ml of mesitylene and 409 g of a 10% aqueous sodium hydrogen carbonate solution were added, and then cooled to room temperature.
- Example 5 Synthesis of 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4 (1H) -one stirrer, thermometer, reflux condenser and Dean-Stark apparatus
- a nitrogen flask in a 50 ml capacity glass flask, 3.69 g isopropyl 2-amino-4-methyl-5- (4- (trifluoromethoxy) phenoxy) benzoate, 20 ml xylene, 5.3 ml 3-pentanone and Zinc chloride (0.256 g) was added and the temperature was raised to reflux with stirring. The reaction was performed for 50 hours while adding 1.1 g of zinc chloride in four portions.
- Example 6 Synthesis of 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4-yl methyl carbonate 1000 ml capacity equipped with stirrer, thermometer, reflux condenser In a glass container, 694 ml of dimethylacetamide, 35.2 g of sodium t-butoxide, 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4 (1H) -one in a nitrogen atmosphere 131 g was added and stirred at room temperature. 34.4 g of methyl chloroformate was added dropwise and reacted at room temperature for 1 hour.
- Example 7 Synthesis of 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4 (1H) -one stirrer, thermometer, reflux condenser and Dean-Stark apparatus Under a nitrogen atmosphere, 542 ml of xylene and 51.5 g of p-toluenesulfonic acid monohydrate were placed in a glass flask having a capacity of 1000 ml under a nitrogen atmosphere, and refluxed and dehydrated for 40 minutes.
- the precipitated solid was filtered on a suction filter, washed with 130 ml of xylene and 260 ml of 50% aqueous methanol, dried, and 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinoline. As a result, 83.3 g (yield: 81.5%) of -4 (1H) -one as a light brown solid was obtained.
- Example 9 Synthesis of 2-ethyl-3,7-dimethyl-6- (4- (trifluoromethoxy) phenoxy) quinolin-4 (1H) -one stirrer, thermometer, reflux condenser and Dean-Stark apparatus Under a nitrogen stream, 30.0 g of aluminum chloride and 125 ml of xylene were added to a glass flask having a capacity of 1000 ml. While stirring at 10 ° C. or lower, 58.1 g of 3-pentanone was added dropwise.
- the 6-aryloxyquinoline derivative of the general formula (6) which is the target compound
- the 6-aryloxyquinoline derivative of the general formula (6) is converted from the nitrobenzoic acid derivative represented by the general formula (7) into 4 steps.
- each reaction step it is not necessary to adopt special reaction equipment or reaction conditions, and by optimizing the reaction conditions, each of the elementary process yields an excellent reaction yield of 80 to 99%. It was.
- the 6-aryloxyquinoline derivative, which is the target compound can be obtained in an excellent yield of 56 to 66% in the total yield of the four steps using the nitrobenzoic acid represented by the general formula (7) as a starting material. It was.
- a compound having a substituent at the 5-position or the 7-position can be obtained as a single product at the same time. It has become possible to shorten this.
- the method for producing a 6-aryloxyquinoline derivative according to the present invention has high reaction efficiency and is based on a quinoline ring construction reaction involving regioselective substituent introduction. It has been proved to be a process for producing a 6-aryloxyquinoline derivative which is advantageous in terms of yield and industrially.
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Abstract
Description
また、これらの6-アリールオキシキノリン誘導体は農園芸用殺菌剤としても様々な植物病原真菌に対して効果を示し、例えば、キュウリうどんこ病菌、コムギ赤さび病菌、オオムギうどんこ病菌、トマト輪紋病菌、リンゴ黒星病菌、モモ灰星病菌、およびイチゴ炭疸病菌に対して殺菌効果を示す化合物として知られている。
(i) 酸の存在下、一般式(1):
R1、R2およびR3は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-4アルキル基、またはハロゲン原子により置換されていてもよいC1-4アルコキシ基を表し、ただし、R1、R2およびR3は同時に水素原子を表すことはなく、
R4は水素原子、またはカルボン酸保護基を表し、
R5、R6、R7、R8およびR9は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC1-8アルコキシ基、ハロゲン原子により置換されていてもよいC1-8アルキルチオ基、ハロゲン原子により置換されていてもよいC2-4アルケニルオキシ基、ハロゲン原子により置換されていてもよいC2-4アルケニルチオ基、またはハロゲン原子により置換されていてもよいC2-4アルキニルオキシ基を表し、
あるいは、R5、R6、R7、R8およびR9のいずれかの隣り合う2つの置換基が一緒になって1以上のハロゲン原子により置換されていてもよい-O-(CH2)n-O-(nは1または2を表す)を表す〕
で示されるアントラニル酸誘導体と、一般式(2):
で示されるケトンを反応させることにより、一般式(3):
で示されるキノロン誘導体を取得する環化反応工程(C)、ならびに
(ii) 一般式(3)のキノロン誘導体と、一般式(4):
Yはフッ素、塩素、臭素、およびヨウ素のいずれか1種を表す〕
で示されるハロゲン化合物、または一般式(5):
で示される酸無水物を反応させることにより、一般式(6):
で示されるキノリン誘導体を取得する縮合反応工程(D)
を含んでなる。
(i) 塩基の存在下または非存在下、一般式(7):
R1、R2およびR3は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-4アルキル基、またはハロゲン原子により置換されていてもよいC1-4アルコキシ基を表し、ただし、R1、R2およびR3は同時に水素原子を表すことはなく、
R4は水素原子、またはカルボン酸保護基を表し、
Xはフッ素、塩素、臭素およびヨウ素のいずれか1種を表す〕
で示されるニトロ安息香酸誘導体に、一般式(8):
R5、R6、R7、R8およびR9は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC1-8アルコキシ基、ハロゲン原子により置換されていてもよいC1-8アルキルチオ基、ハロゲン原子により置換されていてもよいC2-4アルケニルオキシ基、ハロゲン原子により置換されていてもよいC2-4アルケニルチオ基、またはハロゲン原子により置換されていてもよいC2-4アルキニルオキシ基を表し、
あるいは、R5、R6、R7、R8およびR9のいずれかの隣り合う2つの置換基が一緒になって1以上のハロゲン原子により置換されていてもよい-O-(CH2)n-O-(nは1または2を表す)を表す〕
で示されるフェノール誘導体を反応させることにより、一般式(9):
で示されるエーテル誘導体を取得するエーテル化工程(A)、ならびに
(ii) 一般式(9)のエーテル誘導体を還元することにより、一般式(1):
で示されるアントラニル酸誘導体を取得する還元工程(B)
を含んでなる。
R1a、R2aおよびR3aのうちのいずれか1つはハロゲン原子により置換されていてもよいC1-4アルキル基を表し、残りの2つは水素原子を表し、
R4aは、ハロゲン原子により置換されていてもよいC1-4アルキル基を表し、
R5a、R6a、R7a、R8aおよびR9aのうちのいずれか1つはハロゲン原子により置換されていてもよいC1-8アルコキシ基を表し、残りの4つは水素原子を表す〕が提供される。
本明細書において「ハロゲン原子」とは、フッ素、塩素、臭素、またはヨウ素を意味し、好ましくはフッ素、塩素または臭素であり、より好ましくは塩素またはフッ素である。
本発明による方法では、塩基の存在下または非存在下、一般式(7)で示されるニトロ安息香酸誘導体に一般式(8)で示されるフェノール誘導体を反応させて、一般式(9)で示されるエーテル誘導体とするエーテル化工程(A)、次いで、得られたエーテル誘導体を還元して、一般式(1)で示されるアントラニル酸誘導体とする還元工程(B)を行うことにより、重要な中間体である一般式(1)で示されるアントラニル酸誘導体を得ることができる。さらに、還元工程(B)に続けて、あるいは一般式(1)で示されるアントラニル酸誘導体から出発して、酸の存在下、前記アントラニル酸誘導体と一般式(2)で示されるケトンを反応させ、一般式(3)で示されるキノロン誘導体とする環化反応工程(C)、次いで、得られたキノロン誘導体と、一般式(4)で示されるハロゲン化合物あるいは一般式(5)で示される酸無水物とを反応させて、一般式(6)で示されるキノリン誘導体とする縮合反応工程(D)を行うことにより、農園芸用殺虫剤または農園芸用殺菌剤として有用な、一般式(6)で示されるキノリン誘導体を得ることができる。工程(A)~(D)のそれぞれについて、以下に説明する。
エーテル化工程(A)は、塩基の存在下または非存在下、一般式(7)で示されるニトロ安息香酸誘導体に一般式(8)で示されるフェノール誘導体を反応させて、一般式(9)で示されるエーテル誘導体とする工程である。このエーテル化工程(A)は、好ましくは塩基の存在下で行われる。
還元工程(B)は、一般式(9)で示されるエーテル誘導体を還元して、一般式(1)で示されるアントラニル酸誘導体とする工程である。
使用される溶媒は、反応を阻害しないものであればよく、特に制限されない。このような溶媒としては、例えば、水、メタノール、エタノール、プロパノール等のアルコール類、ベンゼン、トルエン、キシレン等の芳香族炭化水素、ジイソプロピルエーテル、テトラヒドロフラン等のエーテル類、ジメチルホルムアミド、ジメチルアセトアミド等のアミド類が挙げられ、好ましくは水またはアルコール類、さらに好ましくは水、メタノール、またはエタノールが使用される。前記溶媒の使用量は、エーテル誘導体に対して、好ましくは2~50質量倍、さらに好ましくは3~20質量倍である。これらの溶媒は、単独で、または二種以上を混合して使用してもよい。
環化反応工程(C)は、酸の存在下、一般式(2)で示されるケトンに、一般式(1)で示されるアントラニル酸誘導体を反応させて、一般式(3)で示されるキノロン誘導体とする工程である。
縮合反応工程(D)は、一般式(3)で示されるキノロン誘導体と一般式(4)で示されるハロゲン化合物または一般式(5)で示される酸無水物を反応させて、一般式(6)で示されるキノリン誘導体とする工程である。
攪拌装置、温度計、還流冷却器を備えた容量2000mlのガラス製フラスコに窒素雰囲気下ジメチルアセトアミド716ml、4-トリフルオロメトキシフェノール170g、5-クロロ-4-メチル-2-ニトロ安息香酸イソプロピル246g、炭酸カリウム263.9gを加え攪拌しながら100~105℃まで昇温した。同温度で37時間反応させた後、減圧下にて360mlのジメチルアセトアミドを留去する。反応液を2Lの氷水に注ぎ、酢酸エチル1.7Lを加え攪拌の後、静置分液する。酢酸エチル層を1.5%の水酸化ナトリウム水溶液および食塩水で洗浄の後、減圧濃縮を行い4-メチル-2-ニトロ-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル373.3g(収率97.9%)を得た。
1H-NMR(CDCl3):1.30(d,6H),2.40(s,3H),5.19(m,1H),6.97(s,1H),7.05(d,2H),7.27(d,2H),7.89(s,1H).
攪拌装置、温度計、還流冷却器を備えた容量2000mlのガラス製フラスコに鉄粉372.9g、エタノール1290ml、水531ml、35%塩酸2.8gを仕込み還流するまで加熱した。エタノール398mlに溶解させた4-メチル-2-ニトロ-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル373gを2時間で滴下した。8時間還流の後、重炭酸ナトリウム飽和水溶液、10mlを加え、濾過した。濾液を濃縮し、酢酸エチル300mlを加え、食塩水で洗浄、分液し、酢酸エチル層を減圧濃縮した。得られた残渣にイソプロパノール320mlを加え70℃に加熱し溶解させた。水160mlを加え冷却し、析出した固体を濾過により濾別、乾燥し2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル283.7g(収率82.2%)を得た。
1H-NMR(CDCl3):1.31(d,6H),2.09(s,3H),5.18(m,1H),5.63(broad,2H),6.56(s,1H),8.82(d,2H),7.12(d,2H),7.50(s,1H).
攪拌装置、温度計を備えた容量500mlのステンレス製オートクレーブに80%メタノール225g、4-メチル-2-ニトロ-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル50g、5%パラジウム炭素2.5gを仕込み、水素圧力下(0.5MPa)、30℃で6時間反応させた。窒素置換の後、反応液をメタノール220mlで濾過し、触媒を除いた。得られたメタノール溶液を減圧下で濃縮し、水208mlを加えた。析出した固体を濾過、乾燥することにより2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル43.96g(収率95%)を得た。
1H-NMR(CDCl3):1.31(d,6H),2.09(s,3H),5.18(m,1H),5.63(broad,2H),6.56(s,1H),8.82(d,2H),7.12(d,2H),7.50(s,1H).
攪拌装置、温度計、還流冷却器およびDean-Stark装置を備えた容量2000mlのガラス製フラスコに窒素雰囲気下2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル171.4g、メシチレン928ml、3-ペンタノン79.9gおよびベンゼンスルホン酸一水和物16.3gを加え攪拌しながら還流するまで昇温させた。ベンゼンスルホン酸一水和物8.2gずつを8回追加しながら90時間反応させた。反応終了後、80℃に冷却しメシチレン232mlと10%炭酸水素ナトリウム水溶液409gを加えた後、室温まで冷却した。
1H-NMR(DMSO-d6):1.21(t,3H),1.95(s,3H),2.28(s,3H),2.67(q,2H),7.6(d,2H),7.38(d,2H),7.43(s,2H),11.37(s,1H).
攪拌装置、温度計、還流冷却器およびDean-Stark装置を備えた容量50mlのガラス製フラスコに窒素雰囲気下2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル3.69g、キシレン20ml、3-ペンタノン5.3mlおよび塩化亜鉛0.256gを加え攪拌しながら還流するまで昇温させた。1.1gの塩化亜鉛を4回に分け追加しながら50時間反応させた。反応終了後、70℃に冷却し0.1N塩酸10mlを加えた後、室温まで冷却した。析出した固体を吸引濾過器上で濾過した後、メタノール水および蒸留水で洗浄、乾燥し、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4(1H)-オンの微褐色固体を3.29g(収率87.3%)得た。
1H-NMR(DMSO-d6):1.21(t,3H),1.95(s,3H),2.28(s,3H),2.67(q,2H),7.6(d,2H),7.38(d,2H),7.43(s,2H),11.37(s,1H).
攪拌装置、温度計、還流冷却器を備えた容量1000mlのガラス製容器に窒素雰囲気下ジメチルアセトアミド694ml、t-ブトキシドナトリウム35.2g、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4(1H)-オン 131g加え室温下攪拌した。クロロ蟻酸メチル34.4gを滴下し、室温にて1時間反応した。この反応混合物を5Lプラスチック容器中の水1735mlに注ぎ、室温にて2時間攪拌した。析出した固体を吸引濾過器にて濾過し、水で洗浄した。固体を減圧乾燥し、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4-イル メチルカルボネート 149.5g(収率98.8%)を得た。1H-NMRの測定結果により、得られた化合物は、国際公開第2006/013896号パンフレットに記載されているNo.120の化合物であることを確認した。
攪拌装置、温度計、還流冷却器およびDean-Stark装置を備えた容量1000mlのガラス製フラスコに窒素雰囲気下、キシレン542ml、p-トルエンスルホン酸一水和物51.5gを仕込み、40分還流脱水した。110℃まで冷却し、2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル100g、3-ペンタノン11.7gを加え還流脱水した。p-トルエンスルホン酸一水和物46.4g、3-ペンタノン34.9gを分割して追加し、107時間反応させた。反応終了後、80℃に冷却し、10%炭酸水素ナトリウム水溶液496gを加えた後、室温まで冷却した。析出した固体を吸引濾過器上で濾過した後、キシレン130mlおよび50%メタノール水260mlで洗浄、乾燥し、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4(1H)-オンの微褐色固体を83.3g(収率81.5%)得た。
1H-NMR(DMSO-d6):1.21(t,3H),1.95(s,3H),2.28(s,3H),2.67(q,2H),7.6(d,2H),7.38(d,2H),7.43(s,2H),11.37(s,1H).
攪拌装置、温度計、還流冷却器、塩化カルシウム管を備えた容量2000mlのガラス製フラスコに窒素雰囲気下ジメチルホルムアミド980ml、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4(1H)-オン 98gを仕込み、15℃に冷却した。55%水素化ナトリウム18.2gを加え、15~20℃で1時間攪拌した。クロロ蟻酸メチル32.1gを滴下し、室温にて1時間反応した。この反応混合物を10Lプラスチック容器中の氷水5Lに注ぎ、室温にて2時間攪拌した。析出した固体を吸引濾過器にて濾過し、n-ヘキサンと水で洗浄した。固体を減圧乾燥し、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4-イル メチルカルボネート 103.3g(収率91.4%)を得た。1H-NMRの測定結果により、得られた化合物は、国際公開第2006/013896号パンフレットに記載されているNo.120の化合物であることを確認した。
攪拌装置、温度計、還流冷却器およびDean-Stark装置を備えた容量1000mlのガラス製フラスコに窒素気流下、塩化アルミニウム30.0g、キシレン125mlを加えた。10℃以下で攪拌しながら3-ペンタノン58.1gを滴下した。つづいて、250mlのキシレンに溶解した2-アミノ-4-メチル-5-(4-(トリフルオロメトキシ)フェノキシ)安息香酸イソプロピル60.55gを室温で滴下した後、6時間加熱還流した。反応液に塩化アルミニウム5.0g、キシレン65mlおよび3-ペンタノン9.69gの混合物を追加し、さらに18時間加熱還流を行った。反応終了後、室温まで放冷した。別の1000mlガラス製フラスコ中に調製した5%塩酸水溶液150mlに、反応液を少量ずつ添加した。さらにメタノール150mlを加えた後、約1時間加熱還流した。室温まで冷却した後、反応混合物を吸引濾過器上で濾過し、メタノール水で洗浄、乾燥し、2-エチル-3,7-ジメチル-6-(4-(トリフルオロメトキシ)フェノキシ)キノリン-4(1H)-オンの微褐色固体51.33g(収率90.7%)を得た。
1H-NMR(DMSO-d6):1.21(t,3H),1.95(s,3H),2.28(s,3H),2.67(q,2H),7.6(d,2H),7.38(d,2H),7.43(s,2H),11.37(s,1H).
国際公開第2006/013896号パンフレットに記載されている、置換アニリンから2工程で6-アリールオキシキノリン誘導体を得る従来の製造方法では、目的化合物の総収率は6~58%程度という低~中程度の収率であった。また、5位または7位置換6-アリールオキシキノリン誘導体を製造する場合、その単離収率は6~44%という低い収率であった。また、5位置換または7位置換6-アリールオキシキノリン誘導体は単一生成物として得られないため、カラムクロマトグラフィー等による煩雑な分離精製工程が必要とされ、工業的製造には改善が必要なものであった。
Claims (23)
- キノリン誘導体を製造する方法であって、
(i) 酸の存在下、一般式(1):
R1、R2およびR3は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-4アルキル基、またはハロゲン原子により置換されていてもよいC1-4アルコキシ基を表し、ただし、R1、R2およびR3は同時に水素原子を表すことはなく、
R4は水素原子、またはカルボン酸保護基を表し、
R5、R6、R7、R8およびR9は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC1-8アルコキシ基、ハロゲン原子により置換されていてもよいC1-8アルキルチオ基、ハロゲン原子により置換されていてもよいC2-4アルケニルオキシ基、ハロゲン原子により置換されていてもよいC2-4アルケニルチオ基、またはハロゲン原子により置換されていてもよいC2-4アルキニルオキシ基を表し、
あるいは、R5、R6、R7、R8およびR9のいずれかの隣り合う2つの置換基が一緒になって1以上のハロゲン原子により置換されていてもよい-O-(CH2)n-O-(nは1または2を表す)を表す〕
で示されるアントラニル酸誘導体と、一般式(2):
で示されるケトンを反応させることにより、一般式(3):
で示されるキノロン誘導体を取得する環化反応工程(C)、ならびに
(ii) 一般式(3)のキノロン誘導体と、一般式(4):
Yはフッ素、塩素、臭素、およびヨウ素のいずれか1種を表す〕
で示されるハロゲン化合物、または一般式(5):
で示される酸無水物を反応させることにより、一般式(6):
で示されるキノリン誘導体を取得する縮合反応工程(D)
を含んでなる、方法。 - R4が、水素原子、ハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、C1-4のアルコキシメチル基、ハロゲン原子により置換されていてもよいベンゾイルメチル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表す、請求項1に記載の方法。
- R1、R2およびR3が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、またはトリフルオロメチル基を表し、ただし、R1、R2およびR3が同時に水素原子を表すことはなく、R4がハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表し、R5、R6、R7、R8およびR9が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、トリフルオロメチル基、ペンタフルオロエチル基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、あるいはR6とR7が一緒になって-OCF2CF2O-を表し、R10およびR11が互いに独立して、水素原子、またはハロゲン原子により置換されていてもよいC1-4アルキル基を表し、ただしR10およびR11が同時に水素原子を表すことはなく、R12がハロゲン原子により置換されていてもよいC1-4アルキル基、またはOR13(ここでR13はハロゲン原子により置換されていてもよいC1-4アルキル基を表す)を表す、請求項1に記載の方法。
- R1、R2およびR3のうちのいずれか1つがメチル基、エチル基、またはトリフルオロメチル基を表し、残りの2つが水素原子を表し、R4が、ハロゲン原子により置換されていてもよいC1-4アルキル基を表し、R5、R6、R7、R8およびR9のうちのいずれか1つがメトキシ基、エトキシ基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、残りの4つが水素原子を表し、R10およびR11が互いに独立してハロゲン原子により置換されていてもよいC1-4アルキル基を表し、R12がOR13(ここで、R13はC1-4アルキル基を表す)を表す、請求項1に記載の方法。
- R10が-CH2-R15を表し、R11がR15を表し、R15がC1-3アルキル基を表す、請求項1に記載の方法。
- 環化反応工程(C)に用いられる酸が有機スルホン酸またはルイス酸である、請求項1に記載の方法。
- 有機スルホン酸がベンゼンスルホン酸またはp-トルエンスルホン酸である、請求項6に記載の方法。
- ルイス酸が、塩化亜鉛、塩化鉄、塩化チタン、または塩化アルミニウムである、請求項6に記載の方法。
- アントラニル酸誘導体を製造する方法であって、
(i) 塩基の存在下または非存在下、一般式(7):
R1、R2およびR3は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-4アルキル基、またはハロゲン原子により置換されていてもよいC1-4アルコキシ基を表し、ただし、R1、R2およびR3は同時に水素原子を表すことはなく、
R4は水素原子、またはカルボン酸保護基を表し、
Xはフッ素、塩素、臭素およびヨウ素のいずれか1種を表す〕
で示されるニトロ安息香酸誘導体に、一般式(8):
R5、R6、R7、R8およびR9は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC1-8アルコキシ基、ハロゲン原子により置換されていてもよいC1-8アルキルチオ基、ハロゲン原子により置換されていてもよいC2-4アルケニルオキシ基、ハロゲン原子により置換されていてもよいC2-4アルケニルチオ基、またはハロゲン原子により置換されていてもよいC2-4アルキニルオキシ基を表し、
あるいは、R5、R6、R7、R8およびR9のいずれかの隣り合う2つの置換基が一緒になって1以上のハロゲン原子により置換されていてもよい-O-(CH2)n-O-(nは1または2を表す)を表す〕
で示されるフェノール誘導体を反応させることにより、一般式(9):
で示されるエーテル誘導体を取得するエーテル化工程(A)、ならびに
(ii) 一般式(9)のエーテル誘導体を還元することにより、一般式(1):
で示されるアントラニル酸誘導体を取得する還元工程(B)
を含んでなる、方法。 - R4が、水素原子、ハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、C1-4のアルコキシメチル基、ハロゲン原子により置換されていてもよいベンゾイルメチル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表す、請求項10に記載の方法。
- R1、R2およびR3が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、またはトリフルオロメチル基を表し、ただし、R1、R2およびR3が同時に水素原子を表すことはなく、R4がハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表し、R5、R6、R7、R8およびR9が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、トリフルオロメチル基、ペンタフルオロエチル基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、あるいはR6とR7が一緒になって-OCF2CF2O-を表す、請求項10に記載の方法。
- R1、R2およびR3のうちのいずれか1つがメチル基、エチル基、またはトリフルオロメチル基を表し、残りの2つが水素原子を表し、R4が、ハロゲン原子により置換されていてもよいC1-4アルキル基を表し、R5、R6、R7、R8およびR9のうちのいずれか1つがメトキシ基、エトキシ基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、残りの4つが水素原子を表す、請求項10に記載の方法。
- 還元工程(B)における還元が、パラジウム存在下における水素添加により、または鉄粉を用いて行われる、請求項10に記載の方法。
- キノリン誘導体を製造する方法であって、
(i) 塩基の存在下または非存在下、一般式(7):
R1、R2およびR3は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-4アルキル基、またはハロゲン原子により置換されていてもよいC1-4アルコキシ基を表し、ただし、R1、R2およびR3は同時に水素原子を表すことはなく、
R4は水素原子、またはカルボン酸保護基を表し、
Xはフッ素、塩素、臭素およびヨウ素のいずれか1種を表す〕
で示されるニトロ安息香酸誘導体に、一般式(8):
R5、R6、R7、R8およびR9は互いに独立して、水素原子、ハロゲン原子、ハロゲン原子により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC1-8アルコキシ基、ハロゲン原子により置換されていてもよいC1-8アルキルチオ基、ハロゲン原子により置換されていてもよいC2-4アルケニルオキシ基、ハロゲン原子により置換されていてもよいC2-4アルケニルチオ基、またはハロゲン原子により置換されていてもよいC2-4アルキニルオキシ基を表し、
あるいは、R5、R6、R7、R8およびR9のいずれかの隣り合う2つの置換基が一緒になって1以上のハロゲン原子により置換されていてもよい-O-(CH2)n-O-(nは1または2を表す)を表す〕
で示されるフェノール誘導体を反応させることにより、一般式(9):
で示されるエーテル誘導体を取得するエーテル化工程(A)、
(ii) 一般式(9)のエーテル誘導体を還元することにより、一般式(1):
で示されるアントラニル酸誘導体を取得する還元工程(B)、
(iii) 酸の存在下、一般式(1)のアントラニル酸誘導体と、一般式(2):
で示されるケトンを反応させることにより、一般式(3):
で示されるキノロン誘導体を取得する環化反応工程(C)、ならびに
(iv) 一般式(3)のキノロン誘導体と、一般式(4):
Yはフッ素、塩素、臭素、およびヨウ素のいずれか1種を表す〕
で示されるハロゲン化合物、または一般式(5):
で示される酸無水物を反応させることにより、一般式(6):
で示されるキノリン誘導体を取得する縮合反応工程(D)
を含んでなる、方法。 - R4が、水素原子、ハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、C1-4のアルコキシメチル基、ハロゲン原子により置換されていてもよいベンゾイルメチル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表す、請求項15に記載の方法。
- R1、R2およびR3が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、またはトリフルオロメチル基を表し、ただし、R1、R2およびR3が同時に水素原子を表すことはなく、R4がハロゲン原子もしくはハロゲン原子により置換されていてもよいC1-4アルコキシ基により置換されていてもよいC1-8アルキル基、ハロゲン原子により置換されていてもよいC3-8環状アルキル基、またはハロゲン原子、C1-4アルキル基もしくはC1-4アルコキシ基により置換されていてもよいC7-14アラルキル基を表し、R5、R6、R7、R8およびR9が互いに独立して、水素原子、塩素原子、臭素原子、フッ素原子、メチル基、エチル基、メトキシ基、エトキシ基、トリフルオロメチル基、ペンタフルオロエチル基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、あるいはR6とR7が一緒になって-OCF2CF2O-を表し、R10およびR11が互いに独立して、水素原子、またはハロゲン原子により置換されていてもよいC1-4アルキル基を表し、ただしR10およびR11が同時に水素原子を表すことはなく、R12がハロゲン原子により置換されていてもよいC1-4アルキル基、またはOR13(ここでR13はハロゲン原子により置換されていてもよいC1-4アルキル基を表す)を表す、請求項15に記載の方法。
- R1、R2およびR3のうちのいずれか1つがメチル基、エチル基、またはトリフルオロメチル基を表し、残りの2つが水素原子を表し、R4が、ハロゲン原子により置換されていてもよいC1-4アルキル基を表し、R5、R6、R7、R8およびR9のうちのいずれか1つがメトキシ基、エトキシ基、トリフルオロメトキシ基、または1,1,2,2-テトラフルオロエトキシ基を表し、残りの4つが水素原子を表し、R10およびR11が互いに独立してハロゲン原子により置換されていてもよいC1-4アルキル基を表し、R12がOR13(ここで、R13はC1-4アルキル基を表す)を表す、請求項15に記載の方法。
- R10が-CH2-R15を表し、R11がR15を表し、R15がC1-3アルキル基を表す、請求項15に記載の方法。
- 還元工程(B)における還元が、パラジウム存在下における水素添加により、または鉄粉を用いて行われる、請求項15に記載の方法。
- 環化反応工程(C)に用いられる酸が有機スルホン酸またはルイス酸である、請求項15に記載の方法。
- 有機スルホン酸がベンゼンスルホン酸またはp-トルエンスルホン酸である、請求項21に記載の方法。
- ルイス酸が、塩化亜鉛、塩化鉄、塩化チタン、または塩化アルミニウムである、請求項21に記載の方法。
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JP5961555B2 (ja) * | 2010-11-19 | 2016-08-02 | 日本化薬株式会社 | 4−カルボニルオキシキノリン誘導体の製造方法 |
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JPWO2019117179A1 (ja) * | 2017-12-12 | 2020-12-17 | 日本化薬株式会社 | キノリン‐4(1h)−オン誘導体の製造方法 |
US11267787B2 (en) * | 2017-12-12 | 2022-03-08 | Nippon Kayaku Co., Ltd | Method for producing quinolin-4(1H)-one derivative |
IL275295B (en) * | 2017-12-12 | 2022-11-01 | Nippon Kayaku Kk | A method for producing a quinoline-4(1h)-one derivative |
IL275295B2 (en) * | 2017-12-12 | 2023-03-01 | Nippon Kayaku Kk | A method for producing a quinoline-4(1h)-one derivative |
JP7304817B2 (ja) | 2017-12-12 | 2023-07-07 | 日本化薬株式会社 | キノリン‐4(1h)-オン誘導体の製造方法 |
KR102659017B1 (ko) | 2017-12-12 | 2024-04-19 | 니폰 카야쿠 코., 엘티디. | 퀴놀린-4(1h)-온 유도체의 제조 방법 |
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TW201014528A (en) | 2010-04-16 |
CN102149684A (zh) | 2011-08-10 |
JP5558352B2 (ja) | 2014-07-23 |
KR20110036592A (ko) | 2011-04-07 |
US8367833B2 (en) | 2013-02-05 |
IL210610A0 (en) | 2011-03-31 |
KR101591123B1 (ko) | 2016-02-02 |
JPWO2010007964A1 (ja) | 2012-01-05 |
IL210610A (en) | 2014-02-27 |
TWI468110B (zh) | 2015-01-11 |
EP2305649B1 (en) | 2013-04-24 |
US20110118468A1 (en) | 2011-05-19 |
CN102149684B (zh) | 2015-04-29 |
EP2305649A1 (en) | 2011-04-06 |
EP2305649A4 (en) | 2011-10-26 |
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