1.
    发明专利
    未知

    公开(公告)号:DE1918695A1

    公开(公告)日:1970-10-15

    申请号:DE1918695

    申请日:1969-04-12

    Applicant: BASF AG

    Abstract: 1299243 Carboxylic esters of 3-formylbuten- (3)-ol-(1) BADISCHE ANILIN & SODA FABRIK AG 10 April 1970 [12 April 1969] 17096/70 Heading C2C Carboxylic esters of 3-formylbuten-(3)-ol-(1) of general formula where R denotes alkyl 1-18C or a phenyl which may bear one or two alkoxy or alkyl groups (1-4C), chlorine atoms, amino groups or into groups as substituents are prepared by reacting a bismonocarboxylic ester of butene-(2)-diol-(1,4) with carbon monoxide and hydrogen in the presence of a carbonyl complex of rhodium at 50 to 110‹ C. and 300 to 1000 atmospheres. Modifying agents such as phosphites of alkanols, cycloalkanols or phenols, or tri-substituted phosphines may be used and the reaction may be in an inert solvent. Examples describe the preparation of butene-(2)-diol-(1,4) diacetate and dipropionate.

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