JPH01319469A - Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative - Google Patents

Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative

Info

Publication number
JPH01319469A
JPH01319469A JP63150019A JP15001988A JPH01319469A JP H01319469 A JPH01319469 A JP H01319469A JP 63150019 A JP63150019 A JP 63150019A JP 15001988 A JP15001988 A JP 15001988A JP H01319469 A JPH01319469 A JP H01319469A
Authority
JP
Japan
Prior art keywords
methyl
dimethoxy
phenyl
benzoquinonyl
acid amide
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
JP63150019A
Other languages
Japanese (ja)
Inventor
Toshio Tatsuoka
立岡 敏雄
Masahiro Imoto
井本 昌宏
Kenji Suzuki
賢治 鈴木
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.)
Suntory Ltd
Original Assignee
Suntory 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 Suntory Ltd filed Critical Suntory Ltd
Priority to JP63150019A priority Critical patent/JPH01319469A/en
Publication of JPH01319469A publication Critical patent/JPH01319469A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To inexpensively and efficiently obtain the subject substance from 2,3-dimethoxy-5-methyl-1,4-hydroquinone and gamma-phenyl-gamma-butylolactone which are raw materials by each using trifluoromethanesulfonic acid as an acid and manganese dioxide as an oxidant. CONSTITUTION:2,3-Dimethoxy-5-methyl-1,4-hydroquinone is condensed with gamma-phenyl-gamma-butylolactone, preferably at equivalent molar ratio in the presence of trifluoromethanesulfonic acid at 0-50 deg.C. Then the condensed product is treated with triethylamine, preferably of 1.2mol equivalent and acetic anhydride, preferably of 1.0mol equivalent to afford 8,9-dimethoxy-7-hydroxy-6-methyl-5- phenyl-2,3,4,5-tetrahydro-1-benzoxepin-2-one, which is then condensed with morpholine or thiomorpholine and oxidized with manganese dioxide to provide the compound expressed by the formula (X is O or S).

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、4−(3,4−ジメトキシ−6−メチル−2
,5−ベンゾキノニル)−4−フェニル酪酸アミド誘導
体の製造法に関する。
Detailed Description of the Invention [Industrial Field of Application] The present invention provides 4-(3,4-dimethoxy-6-methyl-2
, 5-benzoquinonyl)-4-phenylbutyric acid amide derivative.

本発明の方法により製造される4−(3,4−ジメトキ
シ−6−メチル−2,5−ベンゾキノニル)−4−フェ
ニル酪酸アミド誘導体は、抗脳虚血作用、抗ハイボキシ
ア作用、抗過酸化脂質作用等の薬理作用を示し、脳機能
改善薬として有用な化合物である。
The 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenylbutyric acid amide derivative produced by the method of the present invention has anti-cerebral ischemic action, anti-hyboxia action, and anti-lipid peroxidation action. It is a compound that exhibits pharmacological effects such as brain function improvement and is useful as a brain function improving drug.

〔従来の技術〕[Conventional technology]

T−フェニル−γ−ブチロラクトンとフェノール誘導体
とを酸、例えばポリリン酸や硫酸等の存在下に反応して
5−フェニル−1−ベンズオキセピン−2−オン誘導体
を得る方法に関しては、特開昭61−148174号公
報、特開昭61−155358号公報、特開昭62−2
6953号公報等に、又その5−フェニル−1−ベンズ
オキセピン−2−オン誘導体にアミン類を反応せしめた
後、酸化剤、例えば硝酸第二セシウムアンモニウムやニ
トロソジスルホン酸カリウム等により酸化して4−(2
,5−ベンゾキノニル)−4−フェニル酪酸アミド誘導
体を得る方法に関しては特開昭62−226953号公
報に、それぞれ本発明者らによって開示されている。
A method for obtaining 5-phenyl-1-benzoxepin-2-one derivatives by reacting T-phenyl-γ-butyrolactone and a phenol derivative in the presence of an acid such as polyphosphoric acid or sulfuric acid is disclosed in JP-A-61-1999. 148174, JP 61-155358, JP 62-2
6953, etc., and after reacting the 5-phenyl-1-benzoxepin-2-one derivative with amines, it is oxidized with an oxidizing agent such as caesium ammonium nitrate or potassium nitrosodisulfonate to obtain 4- (2
, 5-benzoquinonyl)-4-phenylbutyric acid amide derivatives are disclosed by the present inventors in JP-A-62-226953.

〔発明が解決しようとする課題] しかしながら、前記公報に記載の5−フェニル−1−ベ
ンズオキセピン−2−オン誘導体の製造法に於いては、
酸として取り扱いや後処理が困難なボIJ IJン酸、
硫酸、五酸化燐、塩化アルミニウム、オキシ塩化燐等や
、高価なナフタレン−β−スルホン酸、パラトルエンス
ルホン酸等が用いられており、更に収率も高々30%と
非常に低いものである。
[Problems to be Solved by the Invention] However, in the method for producing 5-phenyl-1-benzoxepin-2-one derivatives described in the above publication,
IJ acid, which is difficult to handle and post-process as an acid;
Sulfuric acid, phosphorus pentoxide, aluminum chloride, phosphorus oxychloride, etc., expensive naphthalene-β-sulfonic acid, para-toluenesulfonic acid, etc. are used, and the yield is very low, at most 30%.

又、特開昭62−226953号公報記載の4−(2,
5−ベンゾキノニル)−4−フェニル酪酸アミド誘導体
を得る方法は、酸化剤として塩化第二鉄、硫酸第二鉄、
酸化銀、硫酸第二セシウムアンモニウム、過酸類、空気
酸化等の緩和な酸化剤を用いたり、ニトロソジスルホン
酸カリウム(フレミー塩)、サルコミンなどの存在下の
酸素気流を用いる方法が記載されており、これらには高
価な硫硝第二セシウムアンモニウムやニトロソジスルホ
ン酸カリウムヲ用いなければならないという問題がある
Also, 4-(2,
The method for obtaining the 5-benzoquinonyl)-4-phenylbutyric acid amide derivative uses ferric chloride, ferric sulfate,
Methods using mild oxidizing agents such as silver oxide, cesium ammonium sulfate, peracids, and air oxidation, and using an oxygen stream in the presence of potassium nitrosodisulfonate (Flemy salt), sarcomine, etc. are described. These methods have the problem of having to use expensive cesium ammonium sulfate and potassium nitrosodisulfonate.

この様な状況の下、大量合成に適した安価で、効率良く
、且つ簡便な、4−(3,4−ジメトキシ−6−メチル
−2,5−ベンゾキノニル)−4−フェニル酪酸アミド
誘導体の製造法の開発が求められている。
Under these circumstances, we sought to produce a 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenylbutyric acid amide derivative that is inexpensive, efficient, and simple and suitable for large-scale synthesis. Development of laws is required.

〔課題を解決するための手段] 本発明者らは、上記問題点を解決すべく鋭意研究を重ね
た結果、2,3−ジメトキシ−5−メチル−1,4−ヒ
ドロキノンとγ−フェニルーT−ブチロラクトンとの反
応に於いて酸としてトリフルオロメタンスルホン酸が、
又 4−(3,4−ジメトキシ−6−メチル−2,5−
ベンゾキノニル)−4−フェニル酪酸アミド誘導体の合
成に於いて酸化剤として二酸化マンガンが、極めて効率
良く用いられることを見出し、本発明を完成した。
[Means for Solving the Problems] As a result of extensive research to solve the above problems, the present inventors found that 2,3-dimethoxy-5-methyl-1,4-hydroquinone and γ-phenyl-T- Trifluoromethanesulfonic acid is used as the acid in the reaction with butyrolactone.
Also 4-(3,4-dimethoxy-6-methyl-2,5-
The present invention was completed based on the discovery that manganese dioxide can be used extremely efficiently as an oxidizing agent in the synthesis of benzoquinonyl)-4-phenylbutyric acid amide derivatives.

本発明に従えば、2,3−ジメトキシ−5−メチル−1
゜4−ヒドロキノンとT−フェニル−T−ブチロラクト
ンとをトリフルオロメタンスルホン酸の存在下に縮合せ
しめた後、トリエチルアミン及び無水酢酸で処理して8
.9−ジメトキシ−7−ヒドロキシ−6−メチル−5−
フェニル−2,3,4,5−テトラヒドロ−1−ベンズ
オキセピン−2−オンとし、続いてモルホリン又はチオ
モルホリンと縮合せしめた後、二酸化マンガンで酸化す
ることから成る式(1)(式中Xは、酸素原子又は硫黄
原子を示す)で表される 4−(3,4−ジメトキシ−
6−メチル−2,5−ベンゾキノニル)−4−フェニル
酪酸アミド誘導体の製造法が提供される。
According to the invention, 2,3-dimethoxy-5-methyl-1
゜4-Hydroquinone and T-phenyl-T-butyrolactone are condensed in the presence of trifluoromethanesulfonic acid, and then treated with triethylamine and acetic anhydride to form 8
.. 9-dimethoxy-7-hydroxy-6-methyl-5-
Formula (1) consisting of phenyl-2,3,4,5-tetrahydro-1-benzoxepin-2-one, followed by condensation with morpholine or thiomorpholine and oxidation with manganese dioxide (wherein X is , represents an oxygen atom or a sulfur atom) 4-(3,4-dimethoxy-
A method for producing a 6-methyl-2,5-benzoquinonyl)-4-phenylbutyric acid amide derivative is provided.

本発明は、以下の方法により実施することができる。The present invention can be carried out by the following method.

2.3−ジメトキシ−5−メチル−1,4−ヒドロキノ
ンとT−フェニル−T−ブチロラクトンの好ましくは当
モル量を、1,2−ジクロロエタンにン容解し、温度を
0〜50°C1好ましくは25°C以下に保ちながらト
リフルオロメタンスルホン酸の0.1〜1.0モル当量
、好ましくは0.2モル当量を滴加する。次に、同じ温
度で24時間以内、好ましくは約12時間撹拌後、トリ
エチルアミン1.0〜2.0モル当量、好ましくは1.
2モル当量を加え、続いて無水酢酸を0.8〜1.2モ
ル当量、好ましくは1.0モル当量を加え、更に1〜5
時間同温度で撹拌する。
2. Preferably equimolar amounts of 3-dimethoxy-5-methyl-1,4-hydroquinone and T-phenyl-T-butyrolactone are dissolved in 1,2-dichloroethane, and the temperature is preferably 0 to 50°C. 0.1 to 1.0 molar equivalent, preferably 0.2 molar equivalent, of trifluoromethanesulfonic acid is added dropwise while maintaining the temperature below 25°C. Then, after stirring at the same temperature within 24 hours, preferably about 12 hours, 1.0 to 2.0 molar equivalents of triethylamine, preferably 1.
2 molar equivalents of acetic anhydride are added, followed by 0.8 to 1.2 molar equivalents, preferably 1.0 molar equivalents of acetic anhydride, and an additional 1 to 5 molar equivalents of acetic anhydride are added.
Stir at the same temperature for the same time.

反応液を常法により水洗、乾燥後濃縮し、結晶化するこ
とにより、約85%の収率で8,9−ジメトキシ−7−
ヒドロキシ−6−メチル−5−フェニル−2,3゜4.
5−テトラヒドロ−1−ベンズオキセピン−2−オンを
得ることができる。
The reaction solution was washed with water, dried, concentrated, and crystallized using a conventional method to obtain 8,9-dimethoxy-7-
Hydroxy-6-methyl-5-phenyl-2,3°4.
5-tetrahydro-1-benzoxepin-2-one can be obtained.

この様にして得られる8、9−ジメトキシ−7−ヒドロ
キシ−6−メチル−5−フェニル−2,3,4,5−テ
トラヒドロ−1−ベンズオキセピン−2−オンヲ1.2
−ジクロロエタンに溶解し、モルホリン又はチオモルホ
リンの1.0〜2.0モル当量を加えて1時間加熱還流
する。反応液を冷却し、50°C以下、好ましくは25
°C以下に保ちながら二酸化マンガンの2〜10モル当
量を加え、更に1時間撹拌する。反応液を常法により濾
過、濃縮後結晶化し、粗結晶を再結晶することにより、
目的とする4−(3,4−ジメトキシ−6−メチル−2
,5−ベンゾキノニル)−4−フェニル酪酸のモルホリ
ンアミド又はチオモルホリンアミドを、約85%の収率
で得ることができる。
1.2 of 8,9-dimethoxy-7-hydroxy-6-methyl-5-phenyl-2,3,4,5-tetrahydro-1-benzoxepin-2-one thus obtained
-Dissolve in dichloroethane, add 1.0 to 2.0 molar equivalents of morpholine or thiomorpholine, and heat under reflux for 1 hour. Cool the reaction solution to below 50°C, preferably 25°C.
Add 2-10 molar equivalents of manganese dioxide while keeping the temperature below °C and stir for an additional hour. By filtering and concentrating the reaction solution in a conventional manner, crystallizing it, and recrystallizing the crude crystals,
Target 4-(3,4-dimethoxy-6-methyl-2
, 5-benzoquinonyl)-4-phenylbutyric acid can be obtained in a yield of about 85%.

上記両反応に於いて用いられる溶媒としては、反応に関
与しないものであれば特に限定されないが、前記1,2
−ジクロロエタンが最適である。
The solvent used in both of the above reactions is not particularly limited as long as it does not participate in the reaction, but
-Dichloroethane is most suitable.

〔実施例] 以下、本発明を実施例を以てより詳細に説明するが、本
発明をこれらの実施例に限定するものでないことは勿論
である。
[Examples] Hereinafter, the present invention will be explained in more detail with reference to Examples, but it goes without saying that the present invention is not limited to these Examples.

kL例」− 4−(4−(3,4−ジメトキシ−6−メチル−2,5
−ベンゾキノニル)−4−フェニルブチリル) −2,
3,4,5−テトラヒドロ−411−チアジンの合成二
重ヒ二し=8.9−ジメトキシ−7−ヒドロキシ−6−
メチル−5−フェニル−2,3,4,5−テトラヒドロ
−1−ベンズオキセピン−2−オン 2.3−ジメトキシ−5−メチル−1,4−ヒドロキノ
ン7.68g(0,0416モル)とT−フェニル−T
−ブチロラクトン6.76g(0,0416モル)を1
,2−ジクロロエタン38m1に溶解後、反応温度を2
5°C以下に保ちながらトリフルオロメタンスルホン酸
0.738m1 を滴加し、滴加柊了後同温度で12時
間撹拌した。続いて反応液温度を同じ<25°C以下に
保ちながら、トリエチルアミン6.96m1 、次に無
水酢酸3.93m1を滴加し、更に1時間室温で撹拌し
た。
Example: 4-(4-(3,4-dimethoxy-6-methyl-2,5
-benzoquinonyl)-4-phenylbutyryl) -2,
Synthesis of 3,4,5-tetrahydro-411-thiazine
Methyl-5-phenyl-2,3,4,5-tetrahydro-1-benzoxepin-2-one 7.68 g (0,0416 mol) of 2,3-dimethoxy-5-methyl-1,4-hydroquinone and T- Phenyl-T
-6.76 g (0,0416 mol) of butyrolactone in 1
, 2-dichloroethane (38ml), the reaction temperature was reduced to 2.
0.738 ml of trifluoromethanesulfonic acid was added dropwise while keeping the temperature below 5°C, and after the addition was complete, the mixture was stirred at the same temperature for 12 hours. Subsequently, 6.96 ml of triethylamine and then 3.93 ml of acetic anhydride were added dropwise while maintaining the reaction solution temperature at the same <25° C., and the mixture was further stirred at room temperature for 1 hour.

反応混合物を各15m!の水で3回洗浄した後、硫酸マ
グネシウムで乾燥し、濾過後液量が約15m1になるま
で濃縮した。残液にイソプロピルエーテル20+n l
を加えて結晶を析出させ、結晶を濾取後イソプロピルエ
ーテル10m1で3回洗浄し、減圧下に乾燥して標記化
合’jIJ10.27g (収率75.0χ)を得た。
15 m each of reaction mixture! The solution was washed three times with water, dried over magnesium sulfate, filtered, and concentrated to a volume of about 15 ml. Add isopropyl ether 20+n l to the remaining liquid
was added to precipitate crystals, and the crystals were collected by filtration, washed three times with 10 ml of isopropyl ether, and dried under reduced pressure to obtain 10.27 g (yield: 75.0x) of the title compound 'jIJ.

ユjL二2 : 4− C4−(3,4−ジメトキシ−
6−メチル−2,5−ベンゾキノニル)−4−フェニル
ブチリル) −2゜3.4.5−テトラヒドロ−4H−
チアジン工程−1で得た8、9−ジメトキシ−7−ヒド
ロキシ−6−メチル−5−フェニル−2,3,4,5−
テトラヒドロ−1−へ、ンズオキセピンー2−オン9.
58g(0,0292モル)を1,2−ジクロロエタン
50m lに溶解し、チオモルホリン2.93m1を加
えた後、1時間加熱還流した。反応液を室温までに冷却
し、25°C以下に保ちながら二酸化マンガン14.3
7gを加え、更に1時間撹拌した。反応液にセライト2
gを加えて混合後濾過、1.2−ジクロロエタンで洗浄
した。濾液及び洗液を合わせ、濃縮して約17m1とし
た後エタノール60m1を加えて結晶を析出させた。結
晶を濾取し、約10m1のエタノールで2回洗浄した後
乾燥して標記化合物10.65g (収率85,0%)
を得た。
UjL22: 4-C4-(3,4-dimethoxy-
6-Methyl-2,5-benzoquinonyl)-4-phenylbutyryl) -2゜3.4.5-tetrahydro-4H-
8,9-dimethoxy-7-hydroxy-6-methyl-5-phenyl-2,3,4,5- obtained in thiazine step-1
Tetrahydro-1-to, nzoxepin-2-one9.
58 g (0,0292 mol) was dissolved in 50 ml of 1,2-dichloroethane, 2.93 ml of thiomorpholine was added, and the mixture was heated under reflux for 1 hour. Cool the reaction solution to room temperature, and add 14.3% manganese dioxide while keeping the temperature below 25°C.
7 g was added and further stirred for 1 hour. Celite 2 in the reaction solution
After mixing, the mixture was filtered and washed with 1,2-dichloroethane. The filtrate and washing liquid were combined and concentrated to about 17 ml, and 60 ml of ethanol was added to precipitate crystals. The crystals were collected by filtration, washed twice with about 10 ml of ethanol, and then dried to yield 10.65 g of the title compound (yield: 85.0%).
I got it.

得られた化合物の融点は、131〜133 ’Cであっ
た。
The melting point of the obtained compound was 131-133'C.

災恭」じ工:  N−(4−(3,4−ジメトキシ−6
−メチル−2,5−ベンゾキノニル)−4−フェニルブ
チリル1モルホリンの合成 実施例Iに準じ、工程−2におけるチオモルホリンに代
えモルホリンを用いることにより標記化合物を約63%
の収率で得た。
Disaster: N-(4-(3,4-dimethoxy-6)
-Methyl-2,5-benzoquinonyl)-4-phenylbutyryl 1 Synthesis of morpholine According to Example I, by using morpholine in place of thiomorpholine in step-2, the title compound was reduced to about 63%.
It was obtained in a yield of .

得られた化合物の融点は74〜76°Cであった。The melting point of the obtained compound was 74-76°C.

Claims (1)

【特許請求の範囲】 1、2,3−ジメトキシ−5−メチル−1,4−ヒドロ
キノンとγ−フェニル−γ−ブチロラクトンとをトリフ
ルオロメタンスルホン酸の存在下に縮合せしめた後、ト
リエチルアミン及び無水酢酸で処理して8,9−ジメト
キシ−7−ヒドロキシ−6−メチル−5−フェニル−2
,3,4,5−テトラヒドロ−1−ベンズオキセピン−
2−オンとし、続いてモルホリン又はチオモルホリンと
縮合せしめた後、二酸化マンガンで酸化することを特徴
とする式( I ) ▲数式、化学式、表等があります▼( I ) (式中Xは、酸素原子又は硫黄原子を示す)で表わされ
る4−(3,4−ジメトキシ−6−メチル−2,5−ベ
ンゾキノニル)−4−フェニル酪酸アミド誘導体の製造
法。
[Claims] After condensing 1,2,3-dimethoxy-5-methyl-1,4-hydroquinone and γ-phenyl-γ-butyrolactone in the presence of trifluoromethanesulfonic acid, triethylamine and acetic anhydride are added. 8,9-dimethoxy-7-hydroxy-6-methyl-5-phenyl-2
,3,4,5-tetrahydro-1-benzoxepine-
2-one, followed by condensation with morpholine or thiomorpholine, and oxidation with manganese dioxide (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) (In the formula, X is A method for producing a 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenylbutyric acid amide derivative represented by (representing an oxygen atom or a sulfur atom).
JP63150019A 1988-06-20 1988-06-20 Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative Pending JPH01319469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63150019A JPH01319469A (en) 1988-06-20 1988-06-20 Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63150019A JPH01319469A (en) 1988-06-20 1988-06-20 Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative

Publications (1)

Publication Number Publication Date
JPH01319469A true JPH01319469A (en) 1989-12-25

Family

ID=15487711

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPH01319469A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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JP2014516051A (en) * 2011-05-26 2014-07-07 インディアナ ユニバーシティー リサーチ アンド テクノロジー コーポレーション Quinone compounds for treating APE1-mediated diseases

Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP2014516051A (en) * 2011-05-26 2014-07-07 インディアナ ユニバーシティー リサーチ アンド テクノロジー コーポレーション Quinone compounds for treating APE1-mediated diseases

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