18480-52-9Relevant academic research and scientific papers
Preparation method of 3,4- dichloro5-cyanisothiazole
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Paragraph 0026; 0027; 0032; 0033, (2019/02/25)
The invention provides a preparation method of 3,4- dichloro5-cyanisothiazole. Low-toxicity iron and cyanogen compounds are used as initial raw materials to react with carbon dioxide and chlorine gasunder the catalysis effect of catalysts; the purity of an obtained product can reach 98 percent. The use of highly toxic sodium cyanide is avoided; the industrial production safety is improved; raw materials are conventional compounds; the price is low; the process is simple and is suitable for amplified production.
A kind of 3,4-dichloro-thiazole derivatives and process for their preparation and use
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Paragraph 0015; 0020-0021; 0081-0082, (2016/10/08)
The invention provides 3,4-dichloro isothiazole derivatives, their preparation method and application. The invention relates to a heterocyclic compound containing 3,4-dichloro isothiazol, and the compound is represented by the following chemical structural general formula. The invention discloses the structural general formula of the compound, a synthetic method of the compound and applications of the compound as pesticide, bactericide, anti-plant virus agent, and plant activator, and a technology of mixing the compound with agriculturally acceptable auxiliary agents or synergists for preparing pesticide, bactericide, anti-plant virus agent, and plant activator. The invention further discloses the combined application of the compound and the commercial pesticide, bactericide, anti-plant virus agent, and plant activator in controlling diseases, insect pests, and virus diseases in agriculture, forestry and gardening, and a preparation method of the compound and the commercial pesticide, bactericide, anti-plant virus agent, and plant activator.
Method of manufacturing benzisothiazol compd.
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Paragraph 0123; 0130, (2016/10/08)
[Problem to be Solved] To provide an industrially preferred process for producing an isothiazole compound, particularly 3,4-dichloro-5-cyanoisothiazole. For example, to provide a safer industrial production process by avoiding the simultaneous use of an aprotic polar solvent such as N,N-dimethylformamide and chlorine. In addition, to provide a production process which is economically preferred because an aprotic polar solvent, which is highly likely to become a part of waste, is not used. [Solution] A process for producing an isothiazole compound represented by a general formula (3), wherein R is a cyano group or the like; and X is a chlorine atom or the like, which comprises heating a nitrile compound represented by a general formula (1), wherein R is as defined above, and sulfur, and then carrying out a reaction between the nitrile compound represented by the general formula (1), the sulfur and a halogen represented by a general formula (2), wherein X is as defined above.
Ring transformation of (4-chloro-5H-1,2,3-dithiazol-5-ylidene)acetonitriles to 3-haloisothiazole-5-carbonitriles
Kalogirou, Andreas S.,Christoforou, Irene C.,Ioannidou, Heraklidia A.,Manos, Manolis J.,Koutentis, Panayiotis A.
, p. 7735 - 7748 (2014/02/14)
Ring transformation of readily prepared (4-chloro-5H-1,2,3-dithiazol-5- ylidene)acetonitriles afford 3-haloisothiazole-5-carbonitriles in good to excellent yields. The transformation can be mediated using HBr (g), HCl (g) or BnEt3NCl. Mechanism
PROCESS FOR PRODUCING ISOTHIAZOLE DERIVATIVE
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Page/Page column 7, (2012/03/10)
A process for producing 3,4-dichloro-5-cyanoisothiazole represented by a general formula (3): the process comprising: reacting a nitrile compound represented by a general formula (1): (wherein “n” denotes an integer of 0 to 2), with sulfur chloride represented by a general formula (2): [Chemical Formula 18] SmCl2 ??(2) (wherein “m” represents an integer of 1 to 2), or a mixture thereof in an aprotic polar solvent. There is provided a process for producing 3,4-dichloro-5-cyanoisothiazole, which is capable of suppressing by-production of a waste, without using a raw material having a having a strong toxicity; and is capable of providing a product having a higher purity in a high yield and efficiency in an industrial scale, in a simple manner.
METHOD FOR PRODUCING ISOTHIAZOLE DERIVATIVE
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Page/Page column 13, (2012/03/26)
A process for producing 3,4-dichloro-5-cyanoisothiazole represented by a general formula (3): the process comprising: reacting a nitrile compound represented by a general formula (1): (wherein "n" denotes an integer of 0 to 2), with sulfur chloride represented by a general formula (2): ????????[Chemical Formula 18] SmCl2?????(2) (wherein "m" represents an integer of 1 to 2), or a mixture thereof in an aprotic polar solvent. There is provided a process for producing 3,4-dichloro-5-cyanoisothiazole, which is capable of suppressing by-production of a waste, without using a raw material having a having a strong toxicity; and is capable of providing a product having a higher purity in a high yield and efficiency in an industrial scale, in a simple manner.
Isothiazolecarboxylic acid derivatives, rice blast control agents containing the same as active ingredients, and rice blast control method applying the control agents
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, (2008/06/13)
Application of a rice blast control agent containing an isothiazolecarboxylic acid derivative of the below-described formula, which shows excellent activity against rice blast (Pyricularia oryzae) in rice cultivation, to the water surface of a paddy rice field results in the absorption of the derivative through roots of rice plants, so that the resistance of the rice plants can be enhanced. STR1 wherein R1 and R2 independently mean a hydrogen or halogen atom or a particular group, and Y stands for an OR3 group (R3 being a hydrogen or alkali metal atom or a particular group), an NHR4 group (R4 being a hydrogen atom or a particular group), or a morpholino group.
