SYNTHESIS OF ALDEHYDE
    1.
    发明专利

    公开(公告)号:JP2002012571A

    公开(公告)日:2002-01-15

    申请号:JP2001136616

    申请日:2001-05-07

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing corresponding aldehydes in high yield and selectivity by reacting a carboxylic acid or an ester thereof with hydrogen. SOLUTION: This method for synthesizing the aldehyde of general formula I [R1 to R3 are each hydrogen, a 1-6C alkyl, a 3-8C cycloalkyl, an aryl, a 7-12C alkylphenyl or a 7-12C phenylalkyl, or R1 and R2 may form a 3- to 7-membered alicyclic ring by bonding to each other] comprises reacting the carboxylic acid or the ester thereof, represented by general formula II [R1 to R3 are same as the above; R4 is hydrogen, a 1-6C alkyl, a 3-8C cycloalkyl, an aryl, a 7-12C alkylphenyl or a 7-12C phenylalkyl] with the hydrogen in a vapor phase in the presence of a catalyst containing zirconium oxide and one or more kinds of lanthanoid elements in the presence of water.

    METHOD FOR PRODUCING ALDEHYDE
    2.
    发明专利

    公开(公告)号:JP2002003431A

    公开(公告)日:2002-01-09

    申请号:JP2001136178

    申请日:2001-05-07

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an aldehyde in good yield and selectivity. SOLUTION: This method for producing an aldehyde represented by a formula (I) [R1, R2 and R3 are each hydrogen, a 1-6C alkyl, a 3-8C cycloalkyl, an aryl, a 7-12C alkylphenyl or a 7-12C phenylalkyl and R1 and R2 together may form a 3- to 7-membered alicyclic ring and R1 and R3 may each be a 1-4C alkoxy, phenoxy, methylamino, dimethylamino or halogen and R1 may be hydroxy or amino] comprises reacting a carboxylic acid (ester) represented by a formula (II) [R1, R2 and R3 are mentioned above; R4 is hydrogen, a 1-6C alkyl, a 3-8C cycloalkyl, aryl, a 7-12C alkylphenyl or a 7-12C phenylalkyl] with hydrogen in the presence of a lanthanum (III) oxide catalyst in vapor phase.

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