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    METHOD FOR PRODUCING OLEFIN COMPOUND
    9.
    发明公开
    METHOD FOR PRODUCING OLEFIN COMPOUND 有权
    一种用于生产烯烃

    公开(公告)号：EP1970368A1

    公开(公告)日：2008-09-17

    申请号：EP06834870.5

    申请日：2006-12-12

    申请人： Sumitomo Chemical Company, Limited

    发明人： YOSHIKAWA, Kouji

    IPC分类号： C07C67/317 ,  C07C69/747 ,  C07D317/50 ,  C07B61/00

    CPC分类号： C07D317/50 ,  C07C67/333 ,  C07C2601/02 ,  C07C69/743

    摘要： A method for producing an olefin compound represented by the formula (2):

    wherein R 1 and R 2 are the same or different, and independently represent an alkyl group or the like, with the proviso that R 1 and R 2 are not hydrogen atoms at the same time, R 3 represents an alkyl group or the like, which comprises contacting a palladium catalyst with an α,β-unsaturated aldehyde compound represented by the formula (1):

    wherein R 1 , R 2 and R 3 are the same as defined above, in the presence of an inorganic base.

    PROCESS FOR THE PREPARATION OF ALKYL 5-(DICARBOXIMIDO)LEVULINATE AND ALKYL 4-OXO-PENTENOATE
    10.
    发明公开
    PROCESS FOR THE PREPARATION OF ALKYL 5-(DICARBOXIMIDO)LEVULINATE AND ALKYL 4-OXO-PENTENOATE 有权
    PROCESS FOR 5-（羧酰）LEVULINSÄUREALKYLESTERN和4-氧代戊烯酸烷基酯的制备

    公开(公告)号：EP1833790A1

    公开(公告)日：2007-09-19

    申请号：EP05799938.5

    申请日：2005-11-02

    申请人： Biosynth AB

    发明人： YOM-TOV, Baruch

    IPC分类号： C07D209/48 ,  C07C67/317 ,  C07C69/738

    CPC分类号： C07D209/48

    摘要： A method of manufacturing esters of dicarboxyimidolevulinic acid and alkyl trans-4-oxo-2-pentenoate. This method includes two reaction steps, wherein the first step of said two reaction steps is a bromination of alkyl-levulinate, to obtain alkyl-(3 and 5)-bromolevulinate, and the second step of said two reaction steps is a synthesis of esters of dicarboxyimidolevulinic acid and alkyl trans-4-oxo-2-pentenoate, by reacting the alkyl-(3 and 5)-bromolevulinate obtained in said first step with dicarboxyimide anion.