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    2.
    发明专利
    未知

    公开(公告)号：DE50308134D1

    公开(公告)日：2007-10-18

    申请号：DE50308134

    申请日：2003-10-28

    Applicant: BASF AG

    Inventor： DOBLER WALTER ,  BAHR NICOLAUS ,  BREUER KLAUS ,  KINDLER ALOIS

    IPC: C07C45/54 ,  C07C45/74 ,  C07C49/203 ,  C07C403/16

    Abstract: The invention relates to a continuous process for producing pseudoionones of general formulas (I) and (I') as well as isomers thereof, whereby: R 1 represents CH 3 or (a); R 2 and R 3 represent hydrogen, CH 3 or C 2 H 5 , and; R 4 and R 5 represent hydrogen or CH 3 . These pseudoionones are produced by reacting an aldehyde of formula (II) with an excess of a ketone of general formula (III), whereby R 1 , R 2 and R 3 have the aforementioned meanings, in the presence of water and alkali hydroxide at an increased temperature and in a homogeneous solution. The inventive process is characterized in that: a) the intermixing of the homogeneous solution consisting of aldehyde, ketone and aqueous alkali lye occurs at a temperature ranging from 10 to 120° C.; b) the undissolved water and alkali hydroxide contained in the reaction mixture are subsequently separated out; c) while avoiding back mixing, the homogeneous reaction mixture is then guided through a reactor, which permits a residence time ranging from 2 to 300 minutes, at a temperature that is 10 to 120° C. higher than the boiling point of the lowest-boiling component and under a vapor pressure p ranging from 10 6 to 10 7 Pa; d) the reaction mixture is cooled by expansion; e) ketone is removed from the reaction mixture using vapor flowing in the opposite direction and; f) the raw product is dried and rid from excessive aldehyde and secondary components via a rectification column.

    CONTINUOUS PROCESS FOR PRODUCING PSEUDOIONONES AND IONONES
    3.
    发明专利
    CONTINUOUS PROCESS FOR PRODUCING PSEUDOIONONES AND IONONES 未知

    公开(公告)号：AU2003285305A1

    公开(公告)日：2004-06-07

    申请号：AU2003285305

    申请日：2003-10-28

    Applicant: BASF AG

    Inventor： DOBLER WALTER ,  BAHR NICOLAUS ,  BREUER KLAUS ,  KINDLER ALOIS

    IPC: C07C45/54 ,  C07C45/74 ,  C07C49/203 ,  C07C403/16

    Abstract: The invention relates to a continuous process for producing pseudoionones of general formulas (I) and (I') as well as isomers thereof, whereby: R 1 represents CH 3 or (a); R 2 and R 3 represent hydrogen, CH 3 or C 2 H 5 , and; R 4 and R 5 represent hydrogen or CH 3 . These pseudoionones are produced by reacting an aldehyde of formula (II) with an excess of a ketone of general formula (III), whereby R 1 , R 2 and R 3 have the aforementioned meanings, in the presence of water and alkali hydroxide at an increased temperature and in a homogeneous solution. The inventive process is characterized in that: a) the intermixing of the homogeneous solution consisting of aldehyde, ketone and aqueous alkali lye occurs at a temperature ranging from 10 to 120° C.; b) the undissolved water and alkali hydroxide contained in the reaction mixture are subsequently separated out; c) while avoiding back mixing, the homogeneous reaction mixture is then guided through a reactor, which permits a residence time ranging from 2 to 300 minutes, at a temperature that is 10 to 120° C. higher than the boiling point of the lowest-boiling component and under a vapor pressure p ranging from 10 6 to 10 7 Pa; d) the reaction mixture is cooled by expansion; e) ketone is removed from the reaction mixture using vapor flowing in the opposite direction and; f) the raw product is dried and rid from excessive aldehyde and secondary components via a rectification column.

    CONTINUOUS PROCESS FOR PRODUCING PSEUDOIONONES AND IONONES
    4.
    发明专利
    CONTINUOUS PROCESS FOR PRODUCING PSEUDOIONONES AND IONONES 未知

    公开(公告)号：CA2505094A1

    公开(公告)日：2004-05-21

    申请号：CA2505094

    申请日：2003-10-28

    Applicant: BASF AG

    Inventor： BREUER KLAUS ,  KINDLER ALOIS ,  BAHR NICOLAUS ,  DOBLER WALTER

    IPC: C07C45/54 ,  C07C45/74 ,  C07C49/203 ,  C07C403/16

    Abstract: The invention relates to a continuous process for producing pseudoionones of general formulas (I) and (I.prime.) as well as isomers thereof, whereby: R1 represents CH3 or (a); R2 and R3 represent hydrogen, CH3 or C2H5, and; R4 an d R5 represent hydrogen or CH3. These pseudoionones are produced by reacting a n aldehyde of formula (II) with an excess of a ketone of general formula (III) , whereby R1, R2 and R3 have the aforementioned meanings, in the presence of water and alkali hydroxide at an increased temperature and in a homogeneous solution. The inventive process is characterized in that: a) the intermixing of the homogeneous solution consisting of aldehyde, ketone and aqueous alkal i lye occurs at a temperature ranging from 10 to 120 ~C; b) the undissolved water and alkali hydroxide contained in the reaction mixture are subsequentl y separated out; c) while avoiding back mixing, the homogeneous reaction mixtu re is then guided through a reactor, which permits a residence time ranging fro m 2 to 300 minutes, at a temperature that is 10 to 120 ~C higher than the boiling point of the lowest-boiling component and under a vapor pressure p ranging from 106 to 107 Pa; d) the reaction mixture is cooled by expansion; e) ketone is removed from the reaction mixture using vapor flowing in the opposite direction and; f) the raw product is dried and rid from excessive aldehyde and secondary components via a rectification column.

    5.
    发明专利
    未知

    公开(公告)号：AT372315T

    公开(公告)日：2007-09-15

    申请号：AT03778290

    申请日：2003-10-28

    Applicant: BASF AG

    Inventor： DOBLER WALTER ,  BAHR NICOLAUS ,  BREUER KLAUS ,  KINDLER ALOIS

    IPC: C07C45/54 ,  C07C45/74 ,  C07C49/203 ,  C07C403/16

    Abstract: The invention relates to a continuous process for producing pseudoionones of general formulas (I) and (I') as well as isomers thereof, whereby: R 1 represents CH 3 or (a); R 2 and R 3 represent hydrogen, CH 3 or C 2 H 5 , and; R 4 and R 5 represent hydrogen or CH 3 . These pseudoionones are produced by reacting an aldehyde of formula (II) with an excess of a ketone of general formula (III), whereby R 1 , R 2 and R 3 have the aforementioned meanings, in the presence of water and alkali hydroxide at an increased temperature and in a homogeneous solution. The inventive process is characterized in that: a) the intermixing of the homogeneous solution consisting of aldehyde, ketone and aqueous alkali lye occurs at a temperature ranging from 10 to 120° C.; b) the undissolved water and alkali hydroxide contained in the reaction mixture are subsequently separated out; c) while avoiding back mixing, the homogeneous reaction mixture is then guided through a reactor, which permits a residence time ranging from 2 to 300 minutes, at a temperature that is 10 to 120° C. higher than the boiling point of the lowest-boiling component and under a vapor pressure p ranging from 10 6 to 10 7 Pa; d) the reaction mixture is cooled by expansion; e) ketone is removed from the reaction mixture using vapor flowing in the opposite direction and; f) the raw product is dried and rid from excessive aldehyde and secondary components via a rectification column.

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