JPH0350793B2 - - Google Patents

Info

Publication number
JPH0350793B2
JPH0350793B2 JP20001383A JP20001383A JPH0350793B2 JP H0350793 B2 JPH0350793 B2 JP H0350793B2 JP 20001383 A JP20001383 A JP 20001383A JP 20001383 A JP20001383 A JP 20001383A JP H0350793 B2 JPH0350793 B2 JP H0350793B2
Authority
JP
Japan
Prior art keywords
parts
present
pyrazoloindazolone
general formula
phenyl 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.)
Expired
Application number
JP20001383A
Other languages
Japanese (ja)
Other versions
JPS6092356A (en
Inventor
Taiichi Yokoyama
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.)
Tosoh Corp
Original Assignee
Tosoh Corp
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 Tosoh Corp filed Critical Tosoh Corp
Priority to JP20001383A priority Critical patent/JPS6092356A/en
Publication of JPS6092356A publication Critical patent/JPS6092356A/en
Publication of JPH0350793B2 publication Critical patent/JPH0350793B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明は、ピラゾロインダゾロン系色素及びそ
の製造法に関するものである。即ち、本発明は一
般式 で表されるピラゾロインダゾロン系色素を提供す
るものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pyrazoloindazolone dye and a method for producing the same. That is, the present invention is based on the general formula The present invention provides a pyrazoloindazolone dye represented by:

本発明の化合物は青色〜紫色結晶で、プラスチ
ツクスの着色や液晶用色素として有用な物質であ
る。
The compound of the present invention has blue to purple crystals and is a substance useful for coloring plastics and as a pigment for liquid crystals.

本発明はまた一般式 で表されるピラゾロインダゾロン誘導体を脱水素
酸化して、一般式 で表されるピラゾロインダゾロン系色素の製造法
を提供するものである。
The invention also relates to the general formula By dehydrogenating and oxidizing the pyrazoloindazolone derivative represented by the general formula The present invention provides a method for producing a pyrazoloindazolone dye represented by:

本発明の出発物質であるピラゾロインダゾロン
誘導体(以下、化合物とする)は新規な物質で
あり、このものは、サクシニルコハク酸エステル
とフエニルヒドラジン類とを酸触媒の存在下に加
熱することによつて容易に製造することができ
る。
The pyrazoloindazolone derivative (hereinafter referred to as a compound), which is the starting material of the present invention, is a new substance, which can be obtained by heating succinyl succinate and phenylhydrazines in the presence of an acid catalyst. It can be easily manufactured by

本発明の酸化反応で用いられる溶媒は特に限定
を必要としないが、メタノール、エタノール、プ
ロパノールなどのアルコール類、エチレングリコ
ール、ジエチレングリコール、メチルセロソル
ブ、エチルセロソルブなどの二価アルコール又は
その誘導体、N−メチル−2−ピロリドン、ジメ
チルスルホキシド、ジメチルホルムアミド、ジオ
キサンなどの極性の強い有機溶媒が好ましい。こ
れらの有機溶媒の使用量は通常出発物質の5〜20
重量倍、好ましくは7〜10重量倍である。
The solvent used in the oxidation reaction of the present invention is not particularly limited, but includes alcohols such as methanol, ethanol, and propanol, dihydric alcohols or derivatives thereof such as ethylene glycol, diethylene glycol, methyl cellosolve, and ethyl cellosolve, N-methyl Strongly polar organic solvents such as -2-pyrrolidone, dimethylsulfoxide, dimethylformamide, and dioxane are preferred. The amount of these organic solvents used is usually 5 to 20% of the starting material.
weight, preferably 7 to 10 times.

酸化剤としては、ニトロベンゼン、m−ニトロ
ベンゼンスルホン酸ナトリウム、m−ニトロフエ
ノール、m−ニトロ安息香酸などの芳香族ニトロ
化合物、ベンゾキノン、アントラキノン、アント
ラキノンスルホン酸ナトリウム、クロラニルなど
のキノン類及びヨウ素などのような比較的温和な
酸化剤が好ましい。また、上記有機溶媒中で単に
空気を導入することによつても実施することがで
きる。酸化剤の使用量は出発物質1モルに対して
1〜2モル使用するのが好ましい。
Examples of oxidizing agents include aromatic nitro compounds such as nitrobenzene, sodium m-nitrobenzenesulfonate, m-nitrophenol, and m-nitrobenzoic acid, quinones such as benzoquinone, anthraquinone, sodium anthraquinonesulfonate, chloranil, and iodine. A relatively mild oxidizing agent is preferred. It can also be carried out simply by introducing air into the organic solvent. The amount of the oxidizing agent used is preferably 1 to 2 moles per mole of the starting material.

本発明の酸化反応は、上記有機溶媒中、空気又
は酸化剤の存在下に、必要があれば触媒量のアル
カリを添加し、50〜200℃、好ましくは60〜150℃
に加熱することにより行われる。
The oxidation reaction of the present invention is carried out in the above organic solvent in the presence of air or an oxidizing agent, with the addition of a catalytic amount of alkali if necessary, at a temperature of 50 to 200°C, preferably 60 to 150°C.
This is done by heating to .

反応時間は反応温度、使用する有機溶媒や酸化
剤などの相違によつて多少異なるが、通常は30分
から4時間位いが適当である。
The reaction time varies somewhat depending on the reaction temperature, the organic solvent used, the oxidizing agent, etc., but is usually about 30 minutes to 4 hours.

本発明により得られる化合物()は青紫色結
晶で、融点は300℃以下であり、有機溶媒に溶け
て鮮明な青紫色を呈する。
The compound () obtained by the present invention is a blue-violet crystal, has a melting point of 300°C or less, and exhibits a clear blue-purple color when dissolved in an organic solvent.

ポリ塩化ビニル、ポリエチレン、ポリスチレン
などの熱可塑性プラスチツクの染色に用いると耐
候性、耐熱性に優れた着色物を与える。
When used to dye thermoplastics such as polyvinyl chloride, polyethylene, and polystyrene, it provides colored products with excellent weather resistance and heat resistance.

次に、本発明を実施例により説明するが、本発
明はこれらによつて限定されるものではない。
Next, the present invention will be explained with reference to Examples, but the present invention is not limited thereto.

実施例中、単に部とあるのは重量部を示す。 In the examples, parts simply indicate parts by weight.

原料製造例 サクシニルコハク酸ジエチルエステル25.6部、
フエニルヒドラジン32.4部、トルエン300部及び
36%塩酸0.5部を窒素気流中で4時間還流させた。
冷却後、生成した白色結晶を取し、アセトン、
水の順で洗浄したのち、60℃で乾燥した。4,8
−ジヒドロ−2,6−ジフエニル−1H,5H−ピ
ラゾロ〔5.4−f〕インダゾール−3,7−ジオ
ンが15部得られた。
Raw material production example 25.6 parts of succinyl succinic acid diethyl ester,
32.4 parts of phenylhydrazine, 300 parts of toluene and
0.5 part of 36% hydrochloric acid was refluxed for 4 hours in a nitrogen stream.
After cooling, remove the white crystals and add acetone,
After washing with water, it was dried at 60°C. 4,8
15 parts of -dihydro-2,6-diphenyl-1H,5H-pyrazolo[5.4-f]indazole-3,7-dione were obtained.

元素分析値: C69.3 H4.7 N16.7 % C20H16N4O2としての計算値:
C69.77H4.65N16.28% IR(KBr、cm-1): 3450(NH)、2890(CH2)、3050(フエニル基
H)、1640(C=O)、1600、1490(フエニル基)、
1300(C−N)、745、690(−置換ベンゼン面外変
角振動) 1H−NMR(DMSO−d6溶媒δ): 1.58(−CH2−)、7.8〜8.1(フエニル基) 実施例 1 4,8−ジヒドロ−2,6−ジフエニル−1H,
5H−ピラゾロ〔5,4−f〕インタゾール−3,
7−ジオン10部とクロラニル5部とを氷酢酸100
部中で1時間還流させた。生成した青紫色結晶を
取し、水及びエタノールで洗浄したのち、60℃
で乾燥した。2,6−ジフエニル−1H,5Hピラ
ゾロ〔5,4−f〕インタゾール−3,7−ジオ
ンが9.8部得られた。
Elemental analysis value: C69.3 H4.7 N16.7 % Calculated value as C 20 H 16 N 4 O 2 :
C69.77H4.65N16.28% IR (KBr, cm -1 ): 3450 (NH), 2890 (CH 2 ), 3050 (phenyl group H), 1640 (C=O), 1600, 1490 (phenyl group),
1300 (C-N), 745, 690 (-substituted benzene out-of-plane bending vibration) 1 H-NMR (DMSO-d 6 solvent δ): 1.58 (-CH 2 -), 7.8-8.1 (phenyl group) Examples 1 4,8-dihydro-2,6-diphenyl-1H,
5H-pyrazolo[5,4-f]intazole-3,
Add 10 parts of 7-dione and 5 parts of chloranil to 100 parts of glacial acetic acid.
The mixture was refluxed for 1 hour in a vacuum chamber. The generated blue-purple crystals were collected, washed with water and ethanol, and then heated at 60°C.
It was dried. 9.8 parts of 2,6-diphenyl-1H,5H pyrazolo[5,4-f]intazole-3,7-dione were obtained.

元素分析値: C68.79H3.80N16.81% C20H14N4O2としての計算値:
C70.18H4.09N16.37% IR(KBr/cm-1): 3400(NH)、3050(フエニル基H)、1700(C=
O)、1600、1490(フエニル基C)、820(1,2,
4,5置換面外変角振動)、770、715(モノ置換面
外変角振動) 1H−NMR(DMSO−d6、δ): 7.8〜8.2(フエニル基) 使用例 1 実施例1で得られた本発明の化合物0.02部を
DOP100部に溶解し、ポリ塩化ビニル200部を加
え、150℃のロールで5分間混練した。青色で鮮
明な透明塩ビシートが得られた。このシートは耐
熱性及び耐候性に優れていた。
Elemental analysis value: C68.79H3.80N16.81% Calculated value as C20H14N4O2 :
C70.18H4.09N16.37% IR (KBr/cm -1 ): 3400 (NH), 3050 (phenyl group H), 1700 (C=
O), 1600, 1490 (phenyl group C), 820 (1, 2,
4,5-substituted out-of-plane bending vibration), 770, 715 (mono-substituted out-of-plane bending vibration) 1 H-NMR (DMSO-d 6 , δ): 7.8-8.2 (phenyl group) Usage example 1 In Example 1 0.02 part of the obtained compound of the present invention
It was dissolved in 100 parts of DOP, 200 parts of polyvinyl chloride was added, and the mixture was kneaded for 5 minutes with a roll at 150°C. A transparent PVC sheet with a clear blue color was obtained. This sheet had excellent heat resistance and weather resistance.

Claims (1)

【特許請求の範囲】 1 一般式 で表されるピラゾロインダゾロン系色素。 2 一般式 で表されるピラゾロインダゾロン誘導体を脱水素
酸化することを特徴とする一般式 で表されるピラゾロインダゾロン系色素の製造
法。
[Claims] 1. General formula A pyrazoloindazolone dye represented by 2 General formula A general formula characterized by dehydrogenation and oxidation of a pyrazoloindazolone derivative represented by A method for producing a pyrazoloindazolone dye represented by
JP20001383A 1983-10-27 1983-10-27 Pyrazoloindazolone dye and production thereof Granted JPS6092356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20001383A JPS6092356A (en) 1983-10-27 1983-10-27 Pyrazoloindazolone dye and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20001383A JPS6092356A (en) 1983-10-27 1983-10-27 Pyrazoloindazolone dye and production thereof

Publications (2)

Publication Number Publication Date
JPS6092356A JPS6092356A (en) 1985-05-23
JPH0350793B2 true JPH0350793B2 (en) 1991-08-02

Family

ID=16417342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20001383A Granted JPS6092356A (en) 1983-10-27 1983-10-27 Pyrazoloindazolone dye and production thereof

Country Status (1)

Country Link
JP (1) JPS6092356A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015123193A1 (en) 2014-02-12 2015-08-20 E. I. Du Pont De Nemours And Company Fungicidal benzodipyrazoles

Also Published As

Publication number Publication date
JPS6092356A (en) 1985-05-23

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