PREPARATION METHOD FOR ARYL SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCE

    公开(公告)号:ZA201802651B

    公开(公告)日:2021-09-29

    申请号:ZA201802651

    申请日:2018-04-20

    Applicant: SENNICS CO LTD

    Abstract: A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. The raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. A reaction condition is relatively mild, and corrosion to reaction equipment is avoided.

    Antidegradante de caucho de acción prolongada y composición de caucho que lo comprende para neumáticos

    公开(公告)号:CL2020003201A1

    公开(公告)日:2021-04-30

    申请号:CL2020003201

    申请日:2020-12-10

    Applicant: SENNICS CO LTD

    Inventor: GAO YANG ZOU BIAO

    Abstract: Se proporciona un antidegradante de caucho novedoso y de acción prolongada, así como una composición de caucho que lo comprende para neumáticos. El antidegradante comprende al menos dos compuestos, cada uno de los cuales se selecciona de un compuesto de Fórmula I, II, III-a o III-b: y cada uno de los compuestos tiene fórmulas diferentes a los demás, y no pueden ser compuestos de Fórmula III-a y III-b al mismo tiempo cuando el antidegradante consta de sólo 2 compuestos. El antidegradante se usa para proporcionar una composición de caucho con una resistencia mejorada a largo plazo al envejecimiento termo-oxidativo y al envejecimiento por ozono.

    PREPARATION METHOD FOR ARYL SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCE

    公开(公告)号:CA3002688C

    公开(公告)日:2021-01-26

    申请号:CA3002688

    申请日:2016-01-11

    Applicant: SENNICS CO LTD

    Abstract: A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. According to the preparation method, the raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. Moreover, a reaction condition is relatively mild, and corrosion to reaction equipment is avoided. Therefore, the preparation method is environment-friendly and less in pollution, and may achieve better economic benefits.

    Preparation method for aryl-substituted p-phenylenediamine substances

    公开(公告)号:AU2016343321B2

    公开(公告)日:2019-03-14

    申请号:AU2016343321

    申请日:2016-01-11

    Applicant: SENNICS CO LTD

    Abstract: A preparation method for an aryl-substituted p-phenylenediamine substance is provided. The structural formula of the aryl-substituted p-phenylenediamine substance is as follows, wherein R'' is phenyl or o-methylphenyl, and R' and R'' are identical or different. The preparation method comprises: raw material A and raw material B reacting under the action of a hydrogen acceptor and a catalyst to form an aryl-substituted p-phenylenediamine substance. The structural formula of raw material A is as follows; raw material B is cyclohexanone and/or o-methylcyclohexanone; and the hydrogen acceptor is a hydrogen acceptor that can be hydroconverted into raw material B. The preparation method uses inexpensive and readily available raw materials, and does not need a large amount of water in the post-treatment of the reaction. The reaction has mild conditions and does not corrode reaction devices. Therefore, the preparation method is environmentally friendly, has less pollution and can help gain more economic benefit.

    PREPARATION METHOD FOR ARYL SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCE

    公开(公告)号:SG11201803239PA

    公开(公告)日:2018-05-30

    申请号:SG11201803239P

    申请日:2016-01-11

    Applicant: SENNICS CO LTD

    Abstract: A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. The raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. A reaction condition is relatively mild, and corrosion to reaction equipment is avoided.

    Preparation method for aryl-substituted p-phenylenediamine substances

    公开(公告)号:AU2016343321A1

    公开(公告)日:2018-05-17

    申请号:AU2016343321

    申请日:2016-01-11

    Applicant: SENNICS CO LTD

    Abstract: A preparation method for an aryl-substituted p-phenylenediamine substance is provided. The structural formula of the aryl-substituted p-phenylenediamine substance is as follows, wherein R'' is phenyl or o-methylphenyl, and R' and R'' are identical or different. The preparation method comprises: raw material A and raw material B reacting under the action of a hydrogen acceptor and a catalyst to form an aryl-substituted p-phenylenediamine substance. The structural formula of raw material A is as follows; raw material B is cyclohexanone and/or o-methylcyclohexanone; and the hydrogen acceptor is a hydrogen acceptor that can be hydroconverted into raw material B. The preparation method uses inexpensive and readily available raw materials, and does not need a large amount of water in the post-treatment of the reaction. The reaction has mild conditions and does not corrode reaction devices. Therefore, the preparation method is environmentally friendly, has less pollution and can help gain more economic benefit.

    Preparation method of 2-mercaptobenzothiazole

    公开(公告)号:AU2015411254A1

    公开(公告)日:2018-05-17

    申请号:AU2015411254

    申请日:2015-11-02

    Applicant: SENNICS CO LTD

    Abstract: The present invention discloses a preparation method of 2-mercaptobenzothiazole, in which an aniline process is employed to react under the action of a catalyst to prepare 2-mercaptobenzothiazole, and the catalyst comprises imidazolium ionic liquid-supported sulfonic acids. The imidazolium ionic liquid-supported sulfonic acids are a type of acidic functionalized ionic liquids, and have the advantages of both solid acids and liquid acids. By employing the imidazolium ionic liquid-supported sulfonic acids as an active component of the catalyst, the present invention can significantly improve the conversion of raw materials and the yield of 2-mercaptobenzothiazole. At the same time, since 2-mercaptobenzothiazole has the characteristics of high catalytic activity, zero volatility, low corrosiveness, superior thermal stability, etc., the above preparation method also has comprehensive advantages of process simplicity, a low cost, a low tar yield, and high environmental friendliness.

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