JP2507942B2 - Novel cyclobutenedione derivative - Google Patents

Novel cyclobutenedione derivative

Info

Publication number
JP2507942B2
JP2507942B2 JP30586487A JP30586487A JP2507942B2 JP 2507942 B2 JP2507942 B2 JP 2507942B2 JP 30586487 A JP30586487 A JP 30586487A JP 30586487 A JP30586487 A JP 30586487A JP 2507942 B2 JP2507942 B2 JP 2507942B2
Authority
JP
Japan
Prior art keywords
derivative
compound
formula
group
cyclobutenedione
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 - Fee Related
Application number
JP30586487A
Other languages
Japanese (ja)
Other versions
JPH01146865A (en
Inventor
豊 赤崎
明彦 常田
薫 鳥越
彰 今井
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 JP30586487A priority Critical patent/JP2507942B2/en
Priority to US07/278,917 priority patent/US5047589A/en
Publication of JPH01146865A publication Critical patent/JPH01146865A/en
Priority to US07/623,697 priority patent/US5169987A/en
Application granted granted Critical
Publication of JP2507942B2 publication Critical patent/JP2507942B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、電子写真感光材料、光ディスク用記録材
料、太陽電池、赤外線カットフィルターの分野で有用な
スクエアリリウム化合物の合成原料となる新規なシクロ
ブテンジオン誘導体に関する。
TECHNICAL FIELD The present invention relates to a novel cyclobutenedione, which is a raw material for synthesizing a squarylium compound useful in the fields of electrophotographic photosensitive materials, recording materials for optical disks, solar cells, and infrared cut filters. Regarding derivatives.

従来の技術 近年、ある種のスクアリリウム化合物が優れた光導電
性を示し、電子写真感光材料その他の用途に使用できる
ことが報告されている(例えば、特開昭60-136452号公
報、同60-142946号公報、同60-142947号公報、同61-105
40号公報、同62-450号公報参照)。
2. Description of the Related Art In recent years, it has been reported that certain squarylium compounds exhibit excellent photoconductivity and can be used in electrophotographic photosensitive materials and other applications (for example, JP-A-60-136452 and JP-A-60-142946). Gazette, gazette 60-142947 gazette, gazette 61-105
40, 62-450).

これらのスクアリリウム化合物は、原料物質として、
ジクロロブテンジオンを用いて合成される。
These squarylium compounds, as raw materials,
It is synthesized using dichlorobutenedione.

従来3,4−ジクロロ−3−シクロブテン1,2−ジオン
(スクエアリック酸塩化物)は、下記反応式(1)及び
(2)で示されるように、ルイス酸触媒の存在下で芳香
族化合物と反応して、対応する3−アリール−4−クロ
ロ−3−シクロブテン1、2−ジオンを生成することが
知られている。
Conventional 3,4-dichloro-3-cyclobutene 1,2-dione (squareric acid chloride) is an aromatic compound in the presence of a Lewis acid catalyst as shown in the following reaction formulas (1) and (2). It is known to react with to form the corresponding 3-aryl-4-chloro-3-cyclobutene 1,2-dione.

(B.R.Green等;Synthesis,1974,46) (L.A.Wennking等;J.Org.Chem.,42(7),1126(197
7)) これらの反応では、選択性に問題があり、特に(2)
の反応では、目的化合物(収率34%)のほかに、次式で
示される1、2−付加体(収率3%)が副成する。
(BR Green et al .; Synthesis, 1974, 46) (LA Wennking et al .; J. Org. Chem., 42 (7), 1126 (197
7)) In these reactions, there is a problem in selectivity, especially (2)
In the reaction of 1, the 1,2-addition product (yield 3%) represented by the following formula is by-produced in addition to the target compound (yield 34%).

発明が解決しようとする問題点 芳香族化合物として、カルバゾール誘導体を用いてス
クエアリック酸塩化物とのフリーデルクラフツ反応を試
みた例は、これまで報告されていない。
Problems to be Solved by the Invention An example of attempting Friedel-Crafts reaction with a squaric acid chloride using a carbazole derivative as an aromatic compound has not been reported so far.

本発明者等は、一群のカルバゾール誘導体を用い、シ
クロブテンジオン誘導体を合成することについて検討し
た結果、特定のカルバゾール誘導体を用いると、電子写
真感光材料その他の用途に使用できる新規なスクアリリ
ウム化合物を製造するための中間体となる新規なシクロ
ブテンジオン誘導体が得られることを見出だした。
The present inventors have studied the synthesis of a cyclobutenedione derivative using a group of carbazole derivatives, and as a result, use of a specific carbazole derivative produces a novel squarylium compound that can be used in electrophotographic photosensitive materials and other applications. It was found that a novel cyclobutenedione derivative, which is an intermediate for the above, can be obtained.

したがって、本発明の目的は、電子写真感光材料その
他の用途に使用できる新規なスクアリリウム化合物を製
造するための中間体となる新規なシクロブテンジオン誘
導体を提供することにある。
Therefore, an object of the present invention is to provide a novel cyclobutenedione derivative which is an intermediate for producing a novel squarylium compound that can be used in electrophotographic photosensitive materials and other applications.

問題点を解決するための手段 本発明の新規なシクロブテンジオン誘導体は、下記一
般式(I)で示される。
Means for Solving Problems The novel cyclobutenedione derivative of the present invention is represented by the following general formula (I).

(式中、Rはメチル基、エチル基、プロピル基又はブチ
ル基を表わし、Xは塩素原子又は水酸基を表わす) 本発明のシクロブテンジオン誘導体には、下記一般式
(Ia)及び(Ib)で示されるものが含まれる。
(In the formula, R represents a methyl group, an ethyl group, a propyl group or a butyl group, and X represents a chlorine atom or a hydroxyl group.) The cyclobutenedione derivative of the present invention has the following general formulas (Ia) and (Ib). Includes those shown.

(式中、Rはメチル基、エチル基、プロピル基又はブチ
ル基を表わす) 本発明の一般式(I)で示されるシクロブテンジオン
誘導体は、次のようにして製造することができる。
(In the formula, R represents a methyl group, an ethyl group, a propyl group or a butyl group) The cyclobutenedione derivative represented by the general formula (I) of the present invention can be produced as follows.

下記構造式(II) で示される3,4−ジクロロ−3−シクロブテン−1,2−ジ
オンと、下記一般式(III) (式中、Rは前記と同じ意味を表わす) で示されるカルバゾール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合成し、所望によりそのク
ロロシクロブテンジオン誘導体を加水分解することによ
り製造する。
Structural formula (II) below 3,4-dichloro-3-cyclobutene-1,2-dione represented by the following general formula (III) (Wherein R represents the same meaning as described above) to react with a carbazole derivative to synthesize a chlorocyclobutenedione derivative and, if desired, hydrolyze the chlorocyclobutenedione derivative.

上記の反応は、公知の類似の反応に準じて実施するこ
とができる。
The above reaction can be carried out according to a known similar reaction.

即ち、3,4−ジクロロ−3−シクロブテン−1,2−ジオ
ンを前記一般式(III)で示されるカルバゾール誘導体
とを反応させる。この反応は、それ等を、適当な溶剤、
例えば塩化メチレン、四塩化炭素、クロロホルム等のハ
ロゲン化炭化水素、ニトロベンゼン、エチルエーテル、
アセトニトリル等の通常のフリーデルクラフツ反応溶媒
に溶解し、所望ならば触媒、例えば三フッ化硼素エチル
エーテル錯体、塩化アルミニウム、塩化アンチモン、塩
化鉄(II)又は(III)、塩化チタン(IV)、塩化錫(I
V)、塩化ビスマス(IV)、塩化亜鉛(II)、塩化水銀
等の存在下、0〜40℃において攪拌することによって行
なうことができる。
That is, 3,4-dichloro-3-cyclobutene-1,2-dione is reacted with the carbazole derivative represented by the general formula (III). This reaction produces them in a suitable solvent,
For example, methylene chloride, carbon tetrachloride, halogenated hydrocarbons such as chloroform, nitrobenzene, ethyl ether,
Soluble in an ordinary Friedel-Crafts reaction solvent such as acetonitrile, and if desired, a catalyst such as boron trifluoride ethyl ether complex, aluminum chloride, antimony chloride, iron (II) chloride or (III), titanium chloride (IV), Tin chloride (I
V), bismuth (IV) chloride, zinc (II) chloride, mercury chloride, etc. in the presence of stirring at 0 to 40 ° C.

一般式(III)で示されるカルバゾール誘導体として
は、N−メチルカルバゾール、N−エチルカルバゾー
ル、N−プロピルカルバゾール及びN−ブチルカルバゾ
ールがあげられる。
Examples of the carbazole derivative represented by the general formula (III) include N-methylcarbazole, N-ethylcarbazole, N-propylcarbazole and N-butylcarbazole.

合成されたクロロシクロブテンジオン誘導体は、所望
により加水分解されるが、加水分解は、適当な酸、例え
ば酢酸を含む水中で、加熱することによって実施され
る。
The synthesized chlorocyclobutenedione derivative is optionally hydrolyzed, and the hydrolysis is carried out by heating in water containing a suitable acid such as acetic acid.

本発明のシクロブテンジオン誘導体は、電子写真感光
材料、光ディスク用記録材料、太陽電池、赤外線カット
フィルターの分野で有用なスクエアリリウム化合物の合
成原料として有用である。例えば、本発明のシクロブテ
ンジオン誘導体を、下記一般式(IV)で示されるアニリ
ン誘導体と縮合させることにより、種々のスクアリリウ
ム化合物を製造することができる。
INDUSTRIAL APPLICABILITY The cyclobutenedione derivative of the present invention is useful as a raw material for synthesizing a squarylium compound useful in the fields of electrophotographic photosensitive materials, recording materials for optical disks, solar cells, and infrared cut filters. For example, various cyclorylium compounds can be produced by condensing the cyclobutenedione derivative of the present invention with an aniline derivative represented by the following general formula (IV).

(式中、Xは水素原子、メチル基、フッ素原子又は水酸
基を表わす) 実施例 以下、本発明の実施例を示す。
(In the formula, X represents a hydrogen atom, a methyl group, a fluorine atom or a hydroxyl group.) EXAMPLES Examples of the present invention will be shown below.

実施例1 3,4−ジクロロ−3−シクロブテン−1,2−ジオン1.16
g(7.68ミリモル)、N−エチルカルバゾール3.00g(1
5.4ミリモル)及び三フッ化硼素エチルエーテル錯体1.2
g(8.0ミリモル)を塩化メチレン20mlに溶解し、室温で
24時間攪拌し、反応を行なった。反応終了後、反応混合
物を希塩酸、次いで水で洗浄し、カラムクロマトグラフ
ィーを用いて分離精製を行ない、下記構造式で示される
クロロシクロブテンジオン化合物0.82g(収率34%)を
得た。融点:mp=216〜217℃ この化合物の赤外吸収スペクトルは第1図に示す通り
であり、紫外吸収スペクトル(最大)は、UV(CH2C
l2):395nmであった。又、元素分析値は、C18H12ClNO2
として、次の通りであった。
Example 1 3,4-Dichloro-3-cyclobutene-1,2-dione 1.16
g (7.68 mmol), N-ethylcarbazole 3.00 g (1
5.4 mmol) and boron trifluoride ethyl ether complex 1.2
g (8.0 mmol) was dissolved in 20 ml of methylene chloride, and at room temperature
The reaction was carried out by stirring for 24 hours. After completion of the reaction, the reaction mixture was washed with dilute hydrochloric acid and then with water, and separated and purified by column chromatography to obtain 0.82 g (yield 34%) of a chlorocyclobutenedione compound represented by the following structural formula. Melting point: mp = 216-217 ° C The infrared absorption spectrum of this compound is as shown in FIG. 1, and the ultraviolet absorption spectrum (maximum) is UV (CH 2 C
l 2 ): 395 nm. The elemental analysis value is C 18 H 12 ClNO 2
Was as follows.

計算値(%) 実測値(%) C 69.80 69.90 H 3.91 3.83 N 4.52 4.34 実施例2 実施例1において得られた上記クロロシクロブテンジ
オン化合物0.510g(1.65ミリモル)に酢酸5ml及び水1ml
を加え、2時間加熱還流させた後、放冷し、析出する沈
澱物を濾別し、下記構造式で示されるヒドロキシシクロ
ブテンジオン化合物0.450g(収率94%)を得た。融点:m
p=240℃(徐々に分解) この化合物の赤外吸収スペクトルは第2図に示す通り
であり、紫外吸収スペクトル(最大)は、UV(CH2C
l2):373nmであった。又、元素分析値は、C18H13NO3
して、次の通りであった。
Calculated value (%) Measured value (%) C 69.80 69.90 H 3.91 3.83 N 4.52 4.34 Example 2 0.510 g (1.65 mmol) of the above chlorocyclobutenedione compound obtained in Example 1 was added to 5 ml of acetic acid and 1 ml of water.
Was added, and the mixture was heated under reflux for 2 hours, allowed to cool, and the deposited precipitate was filtered off to obtain 0.450 g (yield 94%) of a hydroxycyclobutenedione compound represented by the following structural formula. Melting point: m
p = 240 ℃ (gradual decomposition) The infrared absorption spectrum of this compound is as shown in FIG. 2, and the ultraviolet absorption spectrum (maximum) is UV (CH 2 C
l 2 ): 373 nm. Further, the elemental analysis values, as C 18 H 13 NO 3, was as follows.

計算値(%) 実測値(%) C 74.22 74.19 H 4.50 4.55 N 4.81 4.76 実施例3〜5 目的化合物に対応する原料物質を選択し、実施例1に
おけると同様にして3,4−ジクロロ−3−シクロブテン
−1,2−ジオンと反応させ、第1表に示す化合物を製造
した。これ等の化合物の紫外吸収スペクトル(最大)も
又第1表に示す。
Calculated value (%) Measured value (%) C 74.22 74.19 H 4.50 4.55 N 4.81 4.76 Examples 3 to 5 3,4-dichloro-3 was selected in the same manner as in Example 1 by selecting a raw material corresponding to the target compound. -Reaction with cyclobutene-1,2-dione to produce the compounds shown in Table 1. The UV absorption spectra (maximum) of these compounds are also shown in Table 1.

実施例6〜8 実施例3〜5によって得られた化合物を、実施例2に
おけると同様に処理して第2表に示す化合物を製造し
た。これ等の化合物の紫外吸収スペクトル(最大)も又
第2表に示す。
Examples 6 to 8 The compounds obtained in Examples 3 to 5 were treated in the same manner as in Example 2 to produce the compounds shown in Table 2. The UV absorption spectra (maximum) of these compounds are also shown in Table 2.

発明の効果 本発明のジクロブテンジオン誘導体は、新規な化合物
であって、電子写真感光材料、光ディスク用記録材料、
太陽電池、赤外線カットフィルターの分野で有用なスク
エアリリウム化合物の合成原料として使用することがで
きる。本発明のジクロブテンジオン誘導体を用い、例え
ばN,N−ジアルキルアニリン誘導体と反応させることに
よって合成されたスクアリリウム化合物を含有する電子
写真感光体は、可視領域から近赤外領域までの広い範囲
にわたって感度を有するものとなる。
The diclobutenedione derivative of the present invention is a novel compound, and is an electrophotographic photosensitive material, a recording material for optical disks,
It can be used as a raw material for synthesizing squarylium compounds useful in the fields of solar cells and infrared cut filters. An electrophotographic photoreceptor containing a squarylium compound synthesized by reacting the diclobutenedione derivative of the present invention with, for example, an N, N-dialkylaniline derivative has a sensitivity in a wide range from a visible region to a near infrared region. Will have.

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

第1図は実施例1のシクロブテンジオン化合物の赤外吸
収スペクトル図であり、第2図は実施例2のシクロブテ
ンジオン化合物の赤外吸収スペクトル図である。
FIG. 1 is an infrared absorption spectrum diagram of the cyclobutenedione compound of Example 1, and FIG. 2 is an infrared absorption spectrum diagram of the cyclobutenedione compound of Example 2.

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】下記一般式(I) (式中、Rはメチル基、エチル基、プロピル基又はブチ
ル基を表わし、Xは塩素原子又は水酸基を表わす) で示されるシクロブテンジオン誘導体。
1. The following general formula (I): (Wherein R represents a methyl group, an ethyl group, a propyl group or a butyl group, and X represents a chlorine atom or a hydroxyl group).
【請求項2】下記構造式(Ia) (式中、Rは前記と同じ意味を表わす) で示される特許請求の範囲第1項に記載のシクロブテン
ジオン誘導体。
2. The following structural formula (Ia) (In the formula, R represents the same meaning as described above.) The cyclobutenedione derivative according to claim 1.
【請求項3】下記構造式(Ib) (式中、Rは前記と同じ意味を表わす) で示される特許請求の範囲第1項に記載のシクロブテン
ジオン誘導体。
3. The following structural formula (Ib) (In the formula, R represents the same meaning as described above.) The cyclobutenedione derivative according to claim 1.
JP30586487A 1987-12-04 1987-12-04 Novel cyclobutenedione derivative Expired - Fee Related JP2507942B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP30586487A JP2507942B2 (en) 1987-12-04 1987-12-04 Novel cyclobutenedione derivative
US07/278,917 US5047589A (en) 1987-12-04 1988-12-02 Electrophotographic light-sensitive material containing squarylium compound
US07/623,697 US5169987A (en) 1987-12-04 1990-12-07 Squarlylium compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30586487A JP2507942B2 (en) 1987-12-04 1987-12-04 Novel cyclobutenedione derivative

Publications (2)

Publication Number Publication Date
JPH01146865A JPH01146865A (en) 1989-06-08
JP2507942B2 true JP2507942B2 (en) 1996-06-19

Family

ID=17950277

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Application Number Title Priority Date Filing Date
JP30586487A Expired - Fee Related JP2507942B2 (en) 1987-12-04 1987-12-04 Novel cyclobutenedione derivative

Country Status (1)

Country Link
JP (1) JP2507942B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4753437B2 (en) * 2007-04-18 2011-08-24 株式会社シマノ Fishing rod

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