Method of producing alkoxycinnamic acid ester
    4.
    发明授权
    Method of producing alkoxycinnamic acid ester 失效
    制备烷氧基肉桂酸酯的方法

    公开(公告)号:US06680404B1

    公开(公告)日:2004-01-20

    申请号:US09979440

    申请日:2001-11-16

    IPC分类号: C07C6976

    CPC分类号: C07C67/343 C07C69/734

    摘要: The invention relates to a method of producing alkoxycinnamic acid ester (alkoxy cinnamate) by condensing C5-C8 acetic acid esters with C1-C4 alkoxybenzaldehyde in the presence of an alkaline and/or alkaline earth C1-C4 alcohalate and removing the C1-C4 alcohol that is produced by this reaction from the reaction mixture.

    摘要翻译: 本发明涉及通过在碱土金属和/或碱土金属C 1 -C 4烷醇盐存在下将C 5 -C 8乙酸酯与C 1 -C 4烷氧基苯甲醛缩合制备烷氧基肉桂酸酯(烷氧基肉桂酸酯)并除去C 1 -C 4醇 这是通过该反应由反应混合物产生的。

    Process for preparing substituted 2-cyanocinnamic esters
    5.
    发明授权
    Process for preparing substituted 2-cyanocinnamic esters 失效
    取代的2-氰基氨基甲酸酯的制备方法

    公开(公告)号:US5451694A

    公开(公告)日:1995-09-19

    申请号:US230981

    申请日:1994-04-22

    IPC分类号: C07C253/30

    CPC分类号: C07C253/30

    摘要: In the preparation of substituted 2-cyanocinnamic esters by the Knoevenagel condensation of cyanoacetic esters and carbonyl compounds, the reaction times for obtaining high yields can be considerably reduced by using C.sub.3 -C.sub.6 -monocarboxylic acids and ammonium compounds as catalysts.

    摘要翻译: 在通过氰乙酸酯和羰基化合物的Knoevenagel缩合制备取代的2-氰基链烷酸酯时,通过使用C 3 -C 6 - 单羧酸和铵化合物作为催化剂,可以显着降低获得高产率的反应时间。