JPH0571583B2 - - Google Patents

Info

Publication number
JPH0571583B2
JPH0571583B2 JP61091257A JP9125786A JPH0571583B2 JP H0571583 B2 JPH0571583 B2 JP H0571583B2 JP 61091257 A JP61091257 A JP 61091257A JP 9125786 A JP9125786 A JP 9125786A JP H0571583 B2 JPH0571583 B2 JP H0571583B2
Authority
JP
Japan
Prior art keywords
formula
compound
general formula
represented
derivative
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.)
Expired - Lifetime
Application number
JP61091257A
Other languages
Japanese (ja)
Other versions
JPS62249950A (en
Inventor
Yutaka Akasaki
Akihiko Tokida
Ishi Kin
Satoru Saeki
Kaoru Torigoe
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP9125786A priority Critical patent/JPS62249950A/en
Publication of JPS62249950A publication Critical patent/JPS62249950A/en
Publication of JPH0571583B2 publication Critical patent/JPH0571583B2/ja
Granted legal-status Critical Current

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0601Acyclic or carbocyclic compounds
    • G03G5/0609Acyclic or carbocyclic compounds containing oxygen
    • G03G5/0611Squaric acid
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0601Acyclic or carbocyclic compounds
    • G03G5/0618Acyclic or carbocyclic compounds containing oxygen and nitrogen

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は、光導電性材料として有用な非対称型
スクエアリリウム化合物の製造方法に関する。 〔従来の技術〕 電子写真感光体等の光導電性材料としては無機
および有機の数多くの物質が知られている。この
うち有機系の光導電性材料としては、従来ビスア
ゾ系顔料、トリスアゾ系顔料、フタロシアニン系
顔料、シアニン類、ピリリウム類などが知られて
おり、また近年下記式
[Industrial Application Field] The present invention relates to a method for producing an asymmetric squarerylium compound useful as a photoconductive material. [Prior Art] Many inorganic and organic substances are known as photoconductive materials for electrophotographic photoreceptors and the like. Among these, conventionally known organic photoconductive materials include bisazo pigments, trisazo pigments, phthalocyanine pigments, cyanines, and pyrylium pigments.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

本発明の目的は、新規な非対称型のスクエアリ
リウム化合物の製造方法を提供することにある。 〔問題点を解決するための手段〕 本発明者等は、鋭意研究を重ねた結果、3,4
−ジクロロ−3−シクロブテン−1,2−ジオン
(スクエアリツク酸塩化物)とアニリン誘導体と
を反応させてクロロシクロブテンジオン誘導体を
得、この誘導体を加水分解してヒドロキシシクロ
ブテンジオン誘導体とした後、これに他のアニリ
ン誘導体を反応させることによつて非対称型のス
クエアリリウム化合物を高純度で収率よく得るこ
とができることを見出し、本発明を完成した。 すなわち、本発明は一般式()
An object of the present invention is to provide a method for producing a novel asymmetric squarerylium compound. [Means for solving the problem] As a result of intensive research, the present inventors have found 3.4
- Dichloro-3-cyclobutene-1,2-dione (squaric acid chloride) is reacted with an aniline derivative to obtain a chlorocyclobutenedione derivative, and this derivative is hydrolyzed to obtain a hydroxycyclobutenedione derivative; The inventors have discovered that an asymmetric squarerium compound can be obtained with high purity and good yield by reacting this with other aniline derivatives, and have completed the present invention. That is, the present invention is based on the general formula ()

【化】 〔式中、Rは水素原子またはメチル基を表わ
し、R′は水素原子またはフツ素原子を表わす。
ただし、RとR′は同時に水素原子を表わさない
ものとする。〕で示されるスクエアリリウム化合
物の製造方法を提供したものである。 下記に本発明の製造方法により得られる前記一
般式()で示される非対称型スクエアリリウム
化合物の具体例を構造式で示す。
[In the formula, R represents a hydrogen atom or a methyl group, and R' represents a hydrogen atom or a fluorine atom.
However, it is assumed that R and R' do not represent hydrogen atoms at the same time. The present invention provides a method for producing a squarerium compound shown in the following. Specific examples of the asymmetric squarerium compounds represented by the general formula () obtained by the production method of the present invention are shown below in terms of structural formulas.

【化】[ka]

【化】[ka]

【化】 本発明のスクエアリリウム化合物の製造方法
は、下記反応工程式Aおよび反応工程式Bで示さ
れる。
[Chemical Formula] The method for producing the squarylium compound of the present invention is shown by the following reaction scheme A and reaction scheme B.

【化】[ka]

【化】[ka]

【化】[ka]

【化】[ka]

【化】[ka]

【化】[ka]

【化】[ka]

〔発明の効果〕〔Effect of the invention〕

本発明は新規な非対称型スクエアリリウム化合
物の製造方法を提供したものである。本発明によ
れば、高純度で容易に非対称型スクエアリリウム
化合物を得ることができる。本発明のスクエアリ
リウム化合物は電子写真感光体等の有機光導電体
として有効に用いることができる。電子写真感光
体としては種々の形態のものが考えられるが、特
に本発明のスクエアリリウム化合物は機能分離型
感光体、すなわち電荷発生層と電荷輸送層から構
成される感光体において、特に電荷発生層として
用いられる光導電性物質として有用である。 〔実施例〕 以下、実施例を挙げて本発明を説明する。 実施例 1 3,4−ジクロル−3−シクロブテン−1,2
−ジオン6.00gと塩化アルミニウム5.30gとを塩
化メチレン60ml中で5℃以下に保ち、塩化アルミ
ニウムが溶解するまで攪拌した。 これに、3−フルオロ−N,N−ジメチルアニ
リン5.53gを40分間で滴下し、その後2.5時間5
℃以下に保つて反応させた。反応終了後、1M−
HCl、水で洗浄し、次にカラムクロマトグラフイ
ーで分離し、下記式
The present invention provides a method for producing a novel asymmetric squarerium compound. According to the present invention, an asymmetric squarerium compound can be easily obtained with high purity. The squarylium compound of the present invention can be effectively used as an organic photoconductor such as an electrophotographic photoreceptor. Various types of electrophotographic photoreceptors can be considered, but in particular, the squarerium compound of the present invention can be used in a functionally separated photoreceptor, that is, a photoreceptor composed of a charge generation layer and a charge transport layer. It is useful as a photoconductive material used as a photoconductive material. [Example] The present invention will be described below with reference to Examples. Example 1 3,4-dichloro-3-cyclobutene-1,2
- 6.00 g of dione and 5.30 g of aluminum chloride were stirred in 60 ml of methylene chloride while keeping the temperature below 5°C until the aluminum chloride was dissolved. To this, 5.53 g of 3-fluoro-N,N-dimethylaniline was added dropwise over 40 minutes, and then 5.53 g was added for 2.5 hours.
The reaction was carried out by keeping the temperature below ℃. After the reaction, 1M−
Washed with HCl and water, then separated by column chromatography, and the following formula was used:

【化】 で示される生成物(式でR′=Fの化合物)3.53
g(収率35%)を得た。 次にこの生成物1.90gを氷酢酸30ml、水8mlの
混合溶媒中で2時間還流し、室温まで冷却した後
別し、下記式
The product represented by [chemical formula] (a compound where R′=F in the formula) 3.53
g (yield 35%) was obtained. Next, 1.90 g of this product was refluxed for 2 hours in a mixed solvent of 30 ml of glacial acetic acid and 8 ml of water, cooled to room temperature, separated, and the following formula

【化】 で示される生成物(式においてR′=Fの化合
物)1.58g(収率90%)を得た。 次にこの化合物1.20g、N,N−ジメチルアニ
リン1.85gをブタノール100ml中で20時間還流し
た後別して青緑色結晶を得た。これをメタノー
ル、ジエチルエーテルで洗浄後、乾燥して前記構
造式(3)で示される生成物を得た。収量1.20g(収
率70%)。 分解点:276℃; 元素分析:C20H19FN2O2として C H N 計算値(%) 70.99 5.66 8.28 実測値(%) 71.05 5.74 8.29 IRスペクトル:第1図。 実施例 2 実施例1と全く同様にして式でR′=Fのヒ
ドロキシシクロブテンジオン誘導体を得た。 次に、この誘導体1.20g、3−メチル−N,N
−ジメチルアニリン2.07gをブタノール100ml中
で20時間還流した後、別して青緑色結晶を得
た。これをメタノール、ジエチルエーテルで洗浄
後、乾燥して前記構造式(2)で示されるスクエアリ
リウム化合物を得た。収量1.25g(収率70%)。 分解点:259〜260℃; 元素分析:C21H21FN2O2として C H N 計算値(%) 71.57 6.01 7.95 実測値(%) 71.60 6.07 7.89 IRスペクトル:第2図 実施例 3 3,4−ジクロロ−3−シクロブテン−1,2
−ジオン6.00gと塩化アルミニウム5.80gとを塩
化メチレン50ml中で5℃以下に保ちながら塩化ア
ルミニウムが溶解するまで攪拌した。 これに3−メチル−N,N−ジメチルアニリン
5.40gを塩化メチレン30mlに溶解したものを約1
時間かけて滴下し、さらに5℃以下に保つて30分
間攪拌した。 反応終了後1M−HCl、水で洗浄しカラムクロ
マトグラフイーで分離することにより次式
1.58 g (yield: 90%) of the product represented by the following formula (a compound where R'=F in the formula) was obtained. Next, 1.20 g of this compound and 1.85 g of N,N-dimethylaniline were refluxed in 100 ml of butanol for 20 hours and separated to obtain blue-green crystals. This was washed with methanol and diethyl ether and then dried to obtain a product represented by the structural formula (3). Yield: 1.20g (yield 70%). Decomposition point: 276°C; Elemental analysis: C 20 H 19 FN 2 O 2 as C H N Calculated value (%) 70.99 5.66 8.28 Actual value (%) 71.05 5.74 8.29 IR spectrum: FIG. Example 2 A hydroxycyclobutenedione derivative having the formula R'=F was obtained in exactly the same manner as in Example 1. Next, 1.20 g of this derivative, 3-methyl-N,N
- After refluxing 2.07 g of dimethylaniline in 100 ml of butanol for 20 hours, a blue-green crystal was obtained separately. This was washed with methanol and diethyl ether and then dried to obtain a squarerium compound represented by the structural formula (2). Yield: 1.25g (yield 70%). Decomposition point: 259-260°C; Elemental analysis: C 21 H 21 FN 2 O 2 Calculated value (%) 71.57 6.01 7.95 Actual value (%) 71.60 6.07 7.89 IR spectrum: Figure 2 Example 3 3, 4-dichloro-3-cyclobutene-1,2
- 6.00 g of dione and 5.80 g of aluminum chloride were stirred in 50 ml of methylene chloride while keeping the temperature below 5°C until the aluminum chloride was dissolved. To this, 3-methyl-N,N-dimethylaniline
Approximately 1
The mixture was added dropwise over a period of time, and the mixture was further stirred for 30 minutes while keeping the temperature below 5°C. After the reaction is completed, the following formula is obtained by washing with 1M HCl and water and separating by column chromatography.

【化】 で示される化合物(式においてR=CH3の化合
物)2.30g(収率23%)を得た。 次にこの化合物2.30gを酢酸20ml、水2mlの混
合溶媒中で10分間還流し、冷却後別することに
より次式
2.30 g (yield: 23%) of a compound represented by the formula (R=CH 3 in the formula) was obtained. Next, 2.30 g of this compound was refluxed for 10 minutes in a mixed solvent of 20 ml of acetic acid and 2 ml of water, and after cooling, the following formula was obtained:

【化】 で示される化合物(式でR=CH3の化合物)
1.96g(収率92%)を得た。次いでこの生成物
1.00g、N,N−ジメチルアニリン1.50gをブタ
ノール80ml中で20時間還流した後別して青緑色
結晶を得た。これをメタノール、ジエチルエーテ
ルで洗浄後乾燥して前記構造式(1)で示される生成
物を得た。収量0.92g(収率64%)。 分解点:246℃; 元素分析:C21H22N2O2として C H N 計算値(%) 75.42 6.63 8.38 実測値(%) 75.10 6.49 8.30 IRスペクトル:第3図。 実施例 4 3,4−ジクロロ−3−シクロブテン−1,2
−ジオン3.00gと塩化アルミニウム2.65gとを塩
化メチレン30ml中で5℃以下に保ち、塩化アルミ
ニウムが溶解するまで攪拌した。 これに、N,N−ジメチルアニリン2.43gを30
分間で滴下し、その後2.5時間5℃以下に保つて
反応させた。反応終了後、1M−HCl、水で洗浄
し、次にカラムクロマトグラフイーで分離し、下
記式
Compounds represented by [chemical formula] (compounds where R=CH 3 in the formula)
1.96g (yield 92%) was obtained. Then this product
1.00 g of N,N-dimethylaniline and 1.50 g of N,N-dimethylaniline were refluxed in 80 ml of butanol for 20 hours and separated to obtain blue-green crystals. This was washed with methanol and diethyl ether and dried to obtain the product represented by the structural formula (1). Yield: 0.92g (yield 64%). Decomposition point: 246°C; Elemental analysis: C 21 H 22 N 2 O 2 Calculated value (%) 75.42 6.63 8.38 Actual value (%) 75.10 6.49 8.30 IR spectrum: Figure 3. Example 4 3,4-dichloro-3-cyclobutene-1,2
- 3.00 g of dione and 2.65 g of aluminum chloride were stirred in 30 ml of methylene chloride while keeping the temperature below 5°C until the aluminum chloride was dissolved. To this, add 2.43 g of N,N-dimethylaniline to 30
The mixture was added dropwise over a period of minutes, and then the temperature was kept below 5° C. for 2.5 hours to react. After the reaction was completed, it was washed with 1M HCl and water, and then separated by column chromatography, and the following formula was obtained.

【化】 で示される生成物(式でR=Hの化合物)1.64
g(収率35%)を得た。 次にこの化合物1.56gを氷酢酸30ml、水6mlの
混合溶媒中で2時間還流し、室温まで冷却した
後、別し下記式
Product represented by [chemical formula] (compound with R=H in the formula) 1.64
g (yield 35%) was obtained. Next, 1.56 g of this compound was refluxed for 2 hours in a mixed solvent of 30 ml of glacial acetic acid and 6 ml of water, cooled to room temperature, separated, and the following formula

【化】 で示される生成物(式でR=Hの化合物)1.38
g(収率96%)を得た。 次いで、この生成物1.00g、3−フルオロ−
N,N−ジメチルアニリン1.92gをブタノール90
ml中で20時間還流した後別して青緑色結晶を得
た。これをメタノール、ジエチルエーテルで洗浄
後、乾燥して、前記構造式(3)で示される生成物
1.01g(収率65%)を得た。 分解点:276℃; 元素分析:C20H19FN2O2として C H N 計算値(%) 70.99 5.66 8.28 実測値(%) 71.01 5.80 8.30 IRスペクトル:実施例1で得た化合物に一致
した。 実施例 5 実施例4と全く同様にして、式でR=Hのヒ
ドロキシシクロブテンジオン誘導体を得た。次に
この化合物1.00g、3−メチル−N,N′−ジメチ
ルアニリン1.87gをブタノール90ml中で20時間還
流した後別して青緑色結晶を得た。これをメタ
ノール、ジエチルエーテルで洗浄後乾燥して、前
記構造式(1)で示される生成物を得た。収量0.99g
(収率64%)。 分解点:246℃; 元素分析:C21H2202N2として C H N 計算値(%) 75.42 6.63 8.38 実測値(%) 75.53 6.67 8.34 IRスペクトル:実施例3で得た化合物に一致
した。 実施例 6 実施例3と全く同様にして式でR=CH3のヒ
ドロキシシクロブテンジオン誘導体を得た。 次いで、この化合物0.50g、3−フルオロ−
N,N′−ジメチルアニリン0.90gを1−ブタノー
ル40ml中で24時間還流し別して緑色結晶を得
た。これをメタノール、ジエチルエーテルで洗
浄、乾燥して前記構造式(2)で示される化合物0.53
g(収率70%)を得た。 分解点:259〜260℃ 元素分析:C21H21FN2O2として C H N 計算値(%) 71.57 6.01 7.95 実測値(%) 71.67 5.96 8.09 IRスペクトル:実施例2で得た化合物に一致
した。
The product represented by [chemical formula] (compound with R=H in the formula) 1.38
g (yield 96%) was obtained. Then 1.00 g of this product, 3-fluoro-
1.92 g of N,N-dimethylaniline and 90 g of butanol
After refluxing in ml for 20 hours, blue-green crystals were obtained. After washing this with methanol and diethyl ether and drying, the product represented by the above structural formula (3) is obtained.
1.01 g (yield 65%) was obtained. Decomposition point: 276°C; Elemental analysis: C H N as C 20 H 19 FN 2 O 2 Calculated value (%) 70.99 5.66 8.28 Actual value (%) 71.01 5.80 8.30 IR spectrum: Consistent with the compound obtained in Example 1 . Example 5 In exactly the same manner as in Example 4, a hydroxycyclobutenedione derivative with the formula R=H was obtained. Next, 1.00 g of this compound and 1.87 g of 3-methyl-N,N'-dimethylaniline were refluxed in 90 ml of butanol for 20 hours and separated to obtain blue-green crystals. This was washed with methanol and diethyl ether and dried to obtain a product represented by the structural formula (1). Yield 0.99g
(yield 64%). Decomposition point: 246°C; Elemental analysis: C 21 H 22 0 2 N 2 Calculated value (%) 75.42 6.63 8.38 Actual value (%) 75.53 6.67 8.34 IR spectrum: Consistent with the compound obtained in Example 3 . Example 6 In exactly the same manner as in Example 3, a hydroxycyclobutenedione derivative with the formula R=CH 3 was obtained. Then, 0.50 g of this compound, 3-fluoro-
0.90 g of N,N'-dimethylaniline was refluxed in 40 ml of 1-butanol for 24 hours and separated to obtain green crystals. This was washed with methanol and diethyl ether and dried to form a compound represented by the above structural formula (2).
g (yield 70%) was obtained. Decomposition point: 259-260°C Elemental analysis: C H N as C 21 H 21 FN 2 O 2 Calculated value (%) 71.57 6.01 7.95 Actual value (%) 71.67 5.96 8.09 IR spectrum: Consistent with the compound obtained in Example 2 did.

【図面の簡単な説明】[Brief explanation of drawings]

第1図乃至第3図は本発明のスクエアリリウム
化合物IRスペクトル図である。
FIGS. 1 to 3 are IR spectra of the squarylium compound of the present invention.

Claims (1)

【特許請求の範囲】 1 式() 【式】 で示される3,4−ジクロロ−3−シクロブテン
−1,2−ジオンと一般式() 【式】 (式中、Rは水素原子またはメチル基を表わ
す。) で示されるアニリン誘導体とを反応させ、一般式
() 【式】 (式中、Rは前記と同じ意味を表わす。) で示されるクロロシクロブテンジオン誘導体を
得、次いでこの誘導体を加水分解して、一般式
() 【式】 (式中、Rは前記と同じ意味を表わす。) で示されるヒドロキシシクロブテンジオン誘導体
とし、この一般式()の化合物を、一般式
() 【式】 (式中、R′は水素原子またはフツ素原子を表
わす。) で示されるアニリン誘導体と反応させることを特
徴とする一般式() 【化】 (式中、RおよびR′は前記と同じ意味を表わ
す。ただし、RとR′は同時に水素原子を表わさ
ないものとする。) で示されるスクエアリリウム化合物の製造方法。 2 式() 【式】 で示される3,4−ジクロロ−3−シクロブテン
−1,2−ジオンと式() 【式】 (式中、R′は水素原子またはフツ素原子を表
わす。) で示されるアニリン誘導体と反応させ、一般式
() 【化】 (式中、R′は前記と同じ意味を表わす。) で示されるクロロシクロブテンジオン誘導体を
得、次いでこの誘導体を加水分解して、一般式
() 【化】 で示されるヒドロキシシクロブテンジオン誘導体
とし、この一般式()の化合物を一般式() 【式】 (式中、Rは水素原子またはメチル基を表わ
す。) で示されるアニリン誘導体と反応させることを特
徴とする一般式() 【化】 (式中、RおよびR′は前記と同じ意味を表わ
す。ただし、RとR′は同時に水素原子を表わさ
ないものとする。) で示されるスクエアリリウム化合物の製造方法。
[Scope of Claims] 1 3,4-dichloro-3-cyclobutene-1,2-dione represented by the formula () [Formula] and the general formula () [Formula] (wherein R is a hydrogen atom or a methyl group) ) to obtain a chlorocyclobutenedione derivative represented by the general formula () [Formula] (wherein R represents the same meaning as above), and then this derivative was Hydrolyzed to form a hydroxycyclobutenedione derivative represented by the general formula () [Formula] (wherein R represents the same meaning as above), and this compound of the general formula () is converted into a hydroxycyclobutenedione derivative represented by the general formula () [Formula] (wherein R represents the same meaning as above). [Formula, R' represents a hydrogen atom or a fluorine atom] General formula () [Chemical formula] (wherein, R' represents a hydrogen atom or a fluorine atom) have the same meaning.However, R and R' do not represent hydrogen atoms at the same time.) A method for producing a squarerylium compound represented by 2 3,4-dichloro-3-cyclobutene-1,2-dione represented by the formula () [formula] and the formula () [formula] (wherein, R' represents a hydrogen atom or a fluorine atom). A chlorocyclobutenedione derivative represented by the general formula () (wherein R′ represents the same meaning as above) is obtained by reacting with the aniline derivative shown, and then this derivative is hydrolyzed, A hydroxycyclobutenedione derivative represented by the general formula () [formula], and a compound of the general formula () represented by the general formula () [formula] (wherein, R represents a hydrogen atom or a methyl group) The general formula () is characterized in that it is reacted with an aniline derivative. (In the formula, R and R' have the same meanings as above. However, R and R' do not represent a hydrogen atom at the same time. ) A method for producing a squarerium compound.
JP9125786A 1986-04-22 1986-04-22 Squarylium compound and production thereof Granted JPS62249950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9125786A JPS62249950A (en) 1986-04-22 1986-04-22 Squarylium compound and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9125786A JPS62249950A (en) 1986-04-22 1986-04-22 Squarylium compound and production thereof

Publications (2)

Publication Number Publication Date
JPS62249950A JPS62249950A (en) 1987-10-30
JPH0571583B2 true JPH0571583B2 (en) 1993-10-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP9125786A Granted JPS62249950A (en) 1986-04-22 1986-04-22 Squarylium compound and production thereof

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Country Link
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521621A (en) * 1983-12-05 1985-06-04 Xerox Corporation Novel squarine systems
US4523035A (en) * 1983-12-05 1985-06-11 Xerox Corporation Process for synthesizing squaraine compositions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521621A (en) * 1983-12-05 1985-06-04 Xerox Corporation Novel squarine systems
US4523035A (en) * 1983-12-05 1985-06-11 Xerox Corporation Process for synthesizing squaraine compositions

Also Published As

Publication number Publication date
JPS62249950A (en) 1987-10-30

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