JP2004352676A - New phthalamic acid derivative and method for producing the same - Google Patents

New phthalamic acid derivative and method for producing the same Download PDF

Info

Publication number
JP2004352676A
JP2004352676A JP2003153911A JP2003153911A JP2004352676A JP 2004352676 A JP2004352676 A JP 2004352676A JP 2003153911 A JP2003153911 A JP 2003153911A JP 2003153911 A JP2003153911 A JP 2003153911A JP 2004352676 A JP2004352676 A JP 2004352676A
Authority
JP
Japan
Prior art keywords
phthalamic acid
acid derivative
same
substituted
alkyl group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003153911A
Other languages
Japanese (ja)
Inventor
Noboru Abe
登 阿部
Hiroyoshi Kodama
浩宜 児玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Nohyaku Co Ltd
Original Assignee
Nihon Nohyaku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nihon Nohyaku Co Ltd filed Critical Nihon Nohyaku Co Ltd
Priority to JP2003153911A priority Critical patent/JP2004352676A/en
Publication of JP2004352676A publication Critical patent/JP2004352676A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a phthalamic acid derivative useful as an intermediate for medicines or agrochemicals and to provide a method for industrially advantageously producing the derivative. <P>SOLUTION: The phthalamic acid derivative is represented by general formula (I) (wherein R<SP>1</SP>and R<SP>2</SP>may be the same as or different from each other and they are each a hydrogen atom or a 1-4C alkyl group; R<SP>3</SP>is a 1-4C alkyl group, a phenyl group which may be substituted or an aralkyl group which may be substituted; n is an integer of 0-2). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は医薬又は農薬の合成原料として有用な新規フタルアミド酸誘導体及びその製造方法に関するものである。
【0002】
【従来の技術】
ある種のフタルアミド誘導体が農業用殺虫剤として有用であることが知られており、その中間体であるフタルアミド酸誘導体は無水フタル酸とアミン誘導体から製造できることが記載されている(例えば、特許文献1、特許文献2、非特許文献1又は非特許文献2参照。)。
しかし、これら従来文献には本発明の一般式で表されるフタルアミド酸誘導体の記載はなく、製造方法においても本発明の特徴である塩基添加の記載はない。
【0003】
【特許文献1】
特開平11−240857号公報(実施例4等)
【特許文献2】
特開2001−131141号公報(製造方法3)
【非特許文献1】
G.V.Boyd, J.Chem.Soc., Perkin. I, 1978, 1338.
【特許文献2】
J.W.Verbicky, J.Org.Chem., 46, 175 (1981).
【0004】
【発明が解決しようとする課題】
上記従来文献の方法では反応を完結させるために高価なアミン誘導体を過剰に用いたり、副生するフタル酸を除去するため精製工程を必要とする等、工業的に製造するには充分ではなく、工業的に効率良くフタルアミド酸誘導体を製造する方法が望まれていた。
【0005】
【課題を解決するための手段】
本発明者らは上記課題を解決すべく鋭意検討を行った結果、無水フタル酸とアミン誘導体との反応において、塩基を添加することにより、特別な精製工程を必要とすることなく、収率良くフタルアミド酸誘導体が製造できること及び該フタルアミド酸誘導体が文献未記載の新規化合物であることを見出し、本発明を完成させたものである。
【0006】
即ち本発明は一般式(I)
【化4】

Figure 2004352676
(式中、R及びRは同一又は異なっても良く、水素原子又はC〜Cアルキル基を示し、RはC〜Cアルキル基、置換されていてもよいフェニル基又は置換されていてもよいアラルキル基を示し、nは0〜2の整数を示す。)で表されるフタルアミド酸誘導体及び一般式(II)
【0007】
【化5】
Figure 2004352676
(式中、R、R、R及びnは前記に同じ。)で表されるアミン誘導体と無水フタル酸とを塩基の存在下に反応させることを特徴とする一般式(I)
【化6】
Figure 2004352676
(式中、R、R、R及びnは前記に同じ。)で表されるフタルアミド酸誘導体の製造方法に関するものである。
【0008】
【発明の実施形態】
本発明のフタルアミド酸誘導体は無水フタル酸とアミン誘導体とを塩基の存在下、溶媒の存在下又は非存在下に反応させることにより製造できる。
【0009】
本発明で使用できる塩基としては、例えば、トリエチルアミン、N−メチルピペリジン、ピリジン、N,N−ジメチルアニリン等の有機塩基類、炭酸水素ナトリウム、炭酸水素カリウム、炭酸リチウム、炭酸ナトリム、炭酸カリウム、炭酸セシウムなどの炭酸アルカリ金属塩類、水酸化リチウム、水酸化ナトリウム、水酸化カリウムなどの水酸化アルカリ金属塩類等を挙げることができ、これらは単独又は二種以上を混合して用いることもできる。
塩基の使用量は原料の無水フタル酸に対して0.001倍モル〜2倍モルの範囲で適宜選択すれば良いが、好ましくは0.05倍モル〜0.5倍モルの範囲である。
【0010】
本発明で使用できる反応溶媒としては、反応を阻害しなければ特に制限はないが、例えば、ヘキサン、シクロヘキサンなどの炭化水素類、トルエン、キシレンなどの芳香族炭化水素類、クロロホルム、ジクロロエタンなどのハロゲン化炭化水素類、フルオロベンゼン、クロロベンゼン、ジクロロベンゼン等のハロゲン化芳香族炭化水素類、ジエチルエーテル、メチルt−ブチルエーテル、テトラヒドロフラン、ジオキサン等のエーテル類、酢酸エチル、酢酸ブチル、安息香酸エチル等のエステル類、アセトニトリル、ベンゾニトリル等のニトリル類、ジメチルホルムアミド、ジメチルアセトアミド、N−メチルピロリドン等のアミド類、ジメチルスルホキシド、スルホラン、1,3−ジメチル−2−イミダゾリジノン等を挙げることができる。これらの溶媒は、単独又は二種以上を混合して使用することもできる。本発明の反応における溶媒の使用量は原料の無水フタル酸1gに対して1〜100mlの範囲で適宜選択すれば良いが、好ましくは2〜10mlの範囲である。
【0011】
反応温度は0℃〜溶媒の沸点の範囲で適宜選択すれば良いが、好ましくは室温〜60℃の範囲である。反応時間は反応スケール、反応温度により一定しないが1〜48時間の範囲で行えば良い。
【0012】
【実施例】
次に実施例をあげて本発明を具体的に説明するが、本発明の範囲はこれらに限定されるものではない。
実施例1. N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の製造
85mlのアセトニトリルに10g(67.5mmol)の無水フタル酸を加え、ここに室温で攪拌下に8.85g(74.2mmol)の1,1−ジメチル−2−メチルチオエチルアミン及び1.40g(13.5mmol)のトリエチルアミンの混合溶液を滴下した。さらに室温で3時間反応させた後、析出した結晶をろ集、少量のアセトニトリルで洗浄、乾燥して16.57gのフタルアミド酸を得た。
収率:92%
物性:融点 137.0℃〜137.5℃
【0013】
実施例2. N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の製造
9mlの1,2−ジクロロエタンに1g(6.75mmol)の無水フタル酸を加え、ここに室温で攪拌下に885mg(7.42mmol)の1,1−ジメチル−2−メチルチオエチルアミン及び140mg(1.35mmol)のトリエチルアミンの混合溶液を滴下した。さらに室温で3時間反応させた。、得られた反応液を高速液体クロマトグラフィーで分析したところ、N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の面積百分率は97%であった。
【0014】
実施例3. N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の製造
9mlの1,2−ジクロロエタンに1g(6.75mmol)の無水フタル酸及び680mg(8.10mmol)の炭酸水素ナトリウムを加え、ここに室温で攪拌下に885mg(7.42mmol)の1,1−ジメチル−2−メチルチオエチルアミンを滴下した。さらに室温で3時間反応させた。得られた反応液を高速液体クロマトグラフィーで分析したところ、N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の面積百分率は95%であった。
【0015】
比較例1. N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の製造(特開平11−240857号公報記載の方法)
9mlの1,2−ジクロロエタンに1g(6.75mmol)の無水フタル酸を加え、ここに室温で攪拌下に885mg(7.42mmol)の1,1−ジメチル−2−メチルチオエチルアミンを滴下し、さらに室温で3時間反応させた。得られた反応液を高速液体クロマトグラフィーで分析したところ、N−(1,1−ジメチル−2−メチルチオエチル)フタルアミド酸の面積百分率は86%であった。
【0016】
【発明の効果】
本発明は、医薬又は農薬の中間体として有用なフタルアミド酸誘導体及びその工業的に有利な製造方法を提供するものである。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a novel phthalamic acid derivative useful as a raw material for synthesizing a pharmaceutical or a pesticide, and a method for producing the same.
[0002]
[Prior art]
It is known that certain phthalamide derivatives are useful as agricultural pesticides, and it is described that an intermediate phthalamide acid derivative can be produced from phthalic anhydride and an amine derivative (for example, Patent Document 1). , Patent Document 2, Non-Patent Document 1 or Non-Patent Document 2.)
However, these conventional documents do not describe the phthalamic acid derivative represented by the general formula of the present invention, and do not describe the addition of a base which is a feature of the present invention in the production method.
[0003]
[Patent Document 1]
JP-A-11-240857 (Example 4, etc.)
[Patent Document 2]
JP 2001-131141 A (Production Method 3)
[Non-patent document 1]
G. FIG. V. Boyd, J.A. Chem. Soc. , Perkin. I, 1978 , 1338.
[Patent Document 2]
J. W. Verbicky, J .; Org. Chem. , 46 , 175 (1981).
[0004]
[Problems to be solved by the invention]
In the method of the above-mentioned conventional literature, an expensive amine derivative is used in excess to complete the reaction, or a purification step is required to remove by-product phthalic acid. A method for industrially efficiently producing a phthalamic acid derivative has been desired.
[0005]
[Means for Solving the Problems]
The present inventors have conducted intensive studies to solve the above problems, and as a result, in the reaction between phthalic anhydride and an amine derivative, by adding a base, a special purification step is not required, and the yield is high. The inventors have found that a phthalamic acid derivative can be produced, and that the phthalamic acid derivative is a novel compound not described in any literature, thereby completing the present invention.
[0006]
That is, the present invention provides a compound represented by the general formula (I)
Embedded image
Figure 2004352676
(Wherein, R 1 and R 2 may be the same or different and represent a hydrogen atom or a C 1 -C 4 alkyl group, and R 3 is a C 1 -C 4 alkyl group, a phenyl group which may be substituted or Represents an optionally substituted aralkyl group, and n represents an integer of 0 to 2.) and a phthalamic acid derivative represented by the general formula (II):
[0007]
Embedded image
Figure 2004352676
Wherein R 1 , R 2 , R 3 and n are as defined above, and phthalic anhydride are reacted in the presence of a base.
Embedded image
Figure 2004352676
(In the formula, R 1 , R 2 , R 3 and n are the same as above.) A method for producing a phthalamic acid derivative represented by the formula:
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The phthalamic acid derivative of the present invention can be produced by reacting phthalic anhydride with an amine derivative in the presence of a base, in the presence or absence of a solvent.
[0009]
Examples of the base that can be used in the present invention include organic bases such as triethylamine, N-methylpiperidine, pyridine, N, N-dimethylaniline, sodium hydrogen carbonate, potassium hydrogen carbonate, lithium carbonate, sodium carbonate, potassium carbonate, and carbonate. Examples thereof include alkali metal carbonates such as cesium, and alkali metal hydroxides such as lithium hydroxide, sodium hydroxide, and potassium hydroxide. These may be used alone or in combination of two or more.
The amount of the base to be used may be appropriately selected within the range of 0.001 to 2 times, and preferably 0.05 to 0.5 times the molar amount of the raw material phthalic anhydride.
[0010]
The reaction solvent that can be used in the present invention is not particularly limited as long as it does not inhibit the reaction.Examples include hydrocarbons such as hexane and cyclohexane, aromatic hydrocarbons such as toluene and xylene, and halogens such as chloroform and dichloroethane. Hydrocarbons, halogenated aromatic hydrocarbons such as fluorobenzene, chlorobenzene and dichlorobenzene, ethers such as diethyl ether, methyl t-butyl ether, tetrahydrofuran and dioxane, and esters such as ethyl acetate, butyl acetate and ethyl benzoate , Nitriles such as acetonitrile and benzonitrile, amides such as dimethylformamide, dimethylacetamide and N-methylpyrrolidone, dimethylsulfoxide, sulfolane, 1,3-dimethyl-2-imidazolidinone and the like. These solvents may be used alone or in combination of two or more. The amount of the solvent used in the reaction of the present invention may be appropriately selected in the range of 1 to 100 ml per 1 g of phthalic anhydride as the raw material, and is preferably in the range of 2 to 10 ml.
[0011]
The reaction temperature may be appropriately selected within the range of 0 ° C. to the boiling point of the solvent, and is preferably in the range of room temperature to 60 ° C. The reaction time is not fixed depending on the reaction scale and the reaction temperature, but may be in the range of 1 to 48 hours.
[0012]
【Example】
Next, the present invention will be described specifically with reference to examples, but the scope of the present invention is not limited thereto.
Embodiment 1 FIG. Preparation of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid 10 g (67.5 mmol) of phthalic anhydride was added to 85 ml of acetonitrile, and 8.85 g (74.2 mmol) of the mixture was stirred at room temperature. A mixed solution of 1,1-dimethyl-2-methylthioethylamine and 1.40 g (13.5 mmol) of triethylamine was added dropwise. After further reacting at room temperature for 3 hours, the precipitated crystals were collected by filtration, washed with a small amount of acetonitrile, and dried to obtain 16.57 g of phthalamic acid.
Yield: 92%
Physical properties: Melting point 137.0 ° C to 137.5 ° C
[0013]
Embodiment 2. FIG. Preparation of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid To 9 ml of 1,2-dichloroethane, 1 g (6.75 mmol) of phthalic anhydride was added, and 885 mg (7. A mixed solution of 42 mmol) of 1,1-dimethyl-2-methylthioethylamine and 140 mg (1.35 mmol) of triethylamine was added dropwise. The reaction was further performed at room temperature for 3 hours. When the obtained reaction solution was analyzed by high performance liquid chromatography, the area percentage of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid was 97%.
[0014]
Embodiment 3 FIG. Preparation of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid To 9 ml of 1,2-dichloroethane, 1 g (6.75 mmol) of phthalic anhydride and 680 mg (8.10 mmol) of sodium hydrogen carbonate were added. 885 mg (7.42 mmol) of 1,1-dimethyl-2-methylthioethylamine was added dropwise thereto at room temperature with stirring. The reaction was further performed at room temperature for 3 hours. When the obtained reaction solution was analyzed by high performance liquid chromatography, the area percentage of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid was 95%.
[0015]
Comparative Example 1 Production of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid (method described in JP-A-11-240857)
1 g (6.75 mmol) of phthalic anhydride was added to 9 ml of 1,2-dichloroethane, and 885 mg (7.42 mmol) of 1,1-dimethyl-2-methylthioethylamine was added dropwise thereto at room temperature with stirring. The reaction was performed at room temperature for 3 hours. When the obtained reaction solution was analyzed by high performance liquid chromatography, the area percentage of N- (1,1-dimethyl-2-methylthioethyl) phthalamic acid was 86%.
[0016]
【The invention's effect】
The present invention provides a phthalamic acid derivative useful as an intermediate of a medicine or a pesticide, and an industrially advantageous production method thereof.

Claims (2)

一般式(I):
Figure 2004352676
(式中、R及びRは同一又は異なっても良く、水素原子又はC〜Cアルキル基を示し、RはC〜Cアルキル基、置換されていてもよいフェニル基又は置換されていてもよいアラルキル基を示し、nは0〜2の整数を示す。)で表されるフタルアミド酸誘導体。
General formula (I):
Figure 2004352676
(Wherein, R 1 and R 2 may be the same or different and represent a hydrogen atom or a C 1 -C 4 alkyl group, and R 3 is a C 1 -C 4 alkyl group, a phenyl group which may be substituted or A phthalamic acid derivative represented by the following formula: represents an aralkyl group which may be substituted, and n represents an integer of 0 to 2.
一般式(II):
Figure 2004352676
(式中、R及びRは同一又は異なっても良く、水素原子又はC〜Cアルキル基を示し、RはC〜Cアルキル基、置換されていてもよいフェニル基又は置換されていてもよいアラルキル基を示し、nは0〜2の整数を示す。)で表されるアミン誘導体と無水フタル酸とを塩基の存在下に反応させることを特徴とする一般式(I):
Figure 2004352676
(式中、R、R、R及びnは前記に同じ。)で表されるフタルアミド酸誘導体の製造方法。
General formula (II):
Figure 2004352676
(Wherein, R 1 and R 2 may be the same or different and represent a hydrogen atom or a C 1 -C 4 alkyl group, and R 3 is a C 1 -C 4 alkyl group, a phenyl group which may be substituted or An aralkyl group which may be substituted, and n represents an integer of 0 to 2), and a phthalic anhydride in the presence of a base to react the amine derivative represented by the general formula (I ):
Figure 2004352676
(In the formula, R 1 , R 2 , R 3 and n are the same as described above.)
JP2003153911A 2003-05-30 2003-05-30 New phthalamic acid derivative and method for producing the same Pending JP2004352676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003153911A JP2004352676A (en) 2003-05-30 2003-05-30 New phthalamic acid derivative and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003153911A JP2004352676A (en) 2003-05-30 2003-05-30 New phthalamic acid derivative and method for producing the same

Publications (1)

Publication Number Publication Date
JP2004352676A true JP2004352676A (en) 2004-12-16

Family

ID=34048711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003153911A Pending JP2004352676A (en) 2003-05-30 2003-05-30 New phthalamic acid derivative and method for producing the same

Country Status (1)

Country Link
JP (1) JP2004352676A (en)

Similar Documents

Publication Publication Date Title
RU2616608C2 (en) Method of producing derivatives of 4,4-difluoro-3,4-dihydroisoquinolin
JP5171640B2 (en) 2,2 &#39;, 6,6&#39;-tetraoxazoline biphenyl ligand and method for preparing the same
JP2009046408A (en) Dihalo polycyclic aromatic compound, pyrrolyl polycyclic aromatic compound and method for producing the same
JP2007238472A (en) Monoglycidylisocyanuric acid compound
JP2010070528A (en) Method for producing 1,2,4-oxadiazole derivative
JP2004352676A (en) New phthalamic acid derivative and method for producing the same
WO2014126008A1 (en) Catalyst and method for producing optically active anti-1,2-nitroalkanol compound
JP2003335735A (en) Method for producing perfluoroisopropylanilines
JP4161367B2 (en) Process for producing 5-substituted oxazole compound and 5-substituted imidazole compound
JP2012162464A (en) Method for producing n-[4-(6,7-difluoro-2,4-dioxo-1,4-dihydro-2h-quinazoline-3-yl)-phenyl]-acetamide
JPH061776A (en) Production of substituted pyrazinecarbonitrile
RU2425047C9 (en) Method of producing substituted 4-hydroxy-3-oxo-3,4-dihydro-2h-1,4-benzoxazine-6,7-dicarbonitriles based on 4-bromo-5-nitrophthalonitrile
JP2706554B2 (en) 4-trifluoromethylaniline derivative and method for producing the same
JP2007051128A (en) Method for producing aniline having aralkyloxy or heteroaralkyloxy group
JP4115421B2 (en) Process for producing 4-hydroxy-4&#39;-alkoxybiphenyl
WO2021193432A1 (en) Method for producing production intermediate of cyclaniliprole
JP4196572B2 (en) Method for producing aminonaphthoquinones
JP4013772B2 (en) 2-Hydroxyimino-3-oxopropionitrile and process for producing the same
KR100763771B1 (en) Process for preparing alkyl 2-[3-[3-[(2e)-(7-chloro-quinolin-2-yl)vinyl]phenyl]-3(s)-hydroxypropyl]benzoate
JP2020083797A (en) Method for producing aromatic halogen derivative
JPS588388B2 (en) Jibenza Middle Ino Seizouhouhou
JP2003261475A (en) Method for producing 9,10-dibromoanthracenes
JPH111465A (en) Production of tropolone derivative
JP2005263727A (en) Method for producing 2,4,6-tris(hydroxyphenylamino)-1,3,5-triazines and 2,4,6-tris(substituted phenylamino)-1,3,5-triazines
JP2010184904A (en) Method for producing acetic acid compound

Legal Events

Date Code Title Description
A521 Written amendment

Effective date: 20060206

Free format text: JAPANESE INTERMEDIATE CODE: A821

RD02 Notification of acceptance of power of attorney

Effective date: 20060206

Free format text: JAPANESE INTERMEDIATE CODE: A7422