SU148041A1 - The method of obtaining 2-chlornaftoquinone-1,4 - Google Patents

The method of obtaining 2-chlornaftoquinone-1,4

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Publication number
SU148041A1
SU148041A1 SU739807A SU739807A SU148041A1 SU 148041 A1 SU148041 A1 SU 148041A1 SU 739807 A SU739807 A SU 739807A SU 739807 A SU739807 A SU 739807A SU 148041 A1 SU148041 A1 SU 148041A1
Authority
SU
USSR - Soviet Union
Prior art keywords
chlornaftoquinone
obtaining
dichloro
chalk
dihydronaphthoquinone
Prior art date
Application number
SU739807A
Other languages
Russian (ru)
Inventor
Е.М. Позднякова
кова Е.М. Поздн
Ю.П. Мельник
М.А. Мостославский
И.А. Троянов
нов И.А. Тро
С.М. Шейн
Original Assignee
кова Е.М. Поздн
Ю.П. Мельник
М.А. Мостославский
нов И.А. Тро
С.М. Шейн
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 кова Е.М. Поздн, Ю.П. Мельник, М.А. Мостославский, нов И.А. Тро, С.М. Шейн filed Critical кова Е.М. Поздн
Priority to SU739807A priority Critical patent/SU148041A1/en
Application granted granted Critical
Publication of SU148041A1 publication Critical patent/SU148041A1/en

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

Description

Известен способ получени  2-хлорнафтохинона-1,4 взаимодействием 2,3-дихлор-2,3-дигидронафтохинона-1,4 с уксусной кислотой в присутствии ацетата натри  при нагревании.A known method for producing 2-chloro-naphthoquinone-1,4 by reacting 2,3-dichloro-2,3-dihydronaphthoquinone-1,4 with acetic acid in the presence of sodium acetate under heating.

Указанный способ сложен.This method is complicated.

В даНно.м изобретении, с целью упрощени  процесса, в качестве дегидрохлорирующего агента используют водную суспензию мелаПример . 5 г 2,3-дихлор-2,3-дигидронафтохинона-1,4 (температура плавлени  168-170°) в течение трех часов при температуре 80° перемешивают с 10 г порошка мела, суспендированного в 100 мл воды. По окончании реакции смесь обрабатывают разбавленной сол ной кислог01{ дл  удалени  избытка мела и фильтруют. Получают 4,5 г 2-хлорнафтохинона-1 ,4 с температурой плавлени  (93% от теоретического).In this invention, in order to simplify the process, an aqueous suspension of chalk is used as a dehydrochlorinating agent. 5 g of 2,3-dichloro-2,3-dihydronaphthoquinone-1,4 (melting point 168-170 °) are mixed with 10 g of chalk powder suspended in 100 ml of water for three hours at a temperature of 80 °. At the end of the reaction, the mixture is treated with dilute hydrochloric acid [01] to remove excess chalk and filtered. 4.5 g of 2-chloro-naphthoquinone-1, 4 are obtained with a melting point (93% of the theoretical).

Предлагаемый способ позвол ет технологически просто и экономически выгодно получать 2-хлорнафтохинон-1,4, который  вл етс  цепным фунгисидом и может примен тьс  в качестве средства дл  борьбы с грибковыми заболевани ми растений.The proposed method allows technologically simple and cost-effective production of 2-chloro-naphthoquinone-1,4, which is a chain fungicide and can be used as an agent for controlling fungal diseases of plants.

Предмет изобретени Subject invention

Способ получени  2-хлорнафтохинона-1,4 на основе 2,3-дихлор-2,3дигидронафтохи .нона..1,4, отличающийс  тем, что, с целью упрощени  процесса, 2,3-дихлор-2,3-дигидронафтохинон-1,4 обрабатывают водной суспензией мела.The method of producing 2-chlornafluoroquinone-1,4 based on 2,3-dichloro-2,3-dihydronaphthoxy .one, 1.1,4, characterized in that, in order to simplify the process, 2,3-dichloro-2,3-dihydronaphthoquinone- 1.4 is treated with an aqueous suspension of chalk.

SU739807A 1961-07-27 1961-07-27 The method of obtaining 2-chlornaftoquinone-1,4 SU148041A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU739807A SU148041A1 (en) 1961-07-27 1961-07-27 The method of obtaining 2-chlornaftoquinone-1,4

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU739807A SU148041A1 (en) 1961-07-27 1961-07-27 The method of obtaining 2-chlornaftoquinone-1,4

Publications (1)

Publication Number Publication Date
SU148041A1 true SU148041A1 (en) 1961-11-30

Family

ID=48303347

Family Applications (1)

Application Number Title Priority Date Filing Date
SU739807A SU148041A1 (en) 1961-07-27 1961-07-27 The method of obtaining 2-chlornaftoquinone-1,4

Country Status (1)

Country Link
SU (1) SU148041A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182648B (en) * 1963-08-23 1964-12-03 Lentia Gmbh Process for the preparation of 2-chloronaphthoquinone- (1, 4)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182648B (en) * 1963-08-23 1964-12-03 Lentia Gmbh Process for the preparation of 2-chloronaphthoquinone- (1, 4)

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