PROCESS FOR THE PREPARATION OF CHROMENE, THIOCHROMENE AND DIHYDROQUINOLINE DERIVATIVES FROM 2-HYDROXY-, 2-MERCAPTO- AND 2-AMINOBENZALDEHYDES
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF CHROMENE, THIOCHROMENE AND DIHYDROQUINOLINE DERIVATIVES FROM 2-HYDROXY-, 2-MERCAPTO- AND 2-AMINOBENZALDEHYDES 审中-公开
    从2-羟基,2-巯基和2-氨基苯甲醛制备色素,硫代吗啉和二氢喹啉衍生物的方法

    公开(公告)号:WO2008006836A1

    公开(公告)日:2008-01-17

    申请号:PCT/EP2007/057062

    申请日:2007-07-10

    摘要: A process for the preparation of oxygen-, thio- and nitrogen-ring containing compounds comprising reacting a compound selected from the compounds of formula (I): or the compounds of formula (II): in which R 1 , R 2 , R 3 , R 4 = F, Br, C1, CN, NO 2 , COOH, COOR, alkyl, aromatic, CF 3 , OMe, OH, NR 2 , NRH, NH 2 , OR, CH 2 X, CHX 2 ; X = C1, F, Br and heteroatom; A = O, S, NH; R 5 = Me, Et, alkyl; with an α,β-unsaturated aldehyde or ketone in the presence of an amino compound as catalysts.

    摘要翻译: 一种制备含氧,硫代和氮环的化合物的方法,包括使选自式(I)的化合物或式(II)的化合物:其中R 1, R 2,R 3,R 4,F,Br,C 1,CN,NO 2, COOH,COOR,烷基,芳族,CF 3,OMe,OH,NR 2,NRH,NH 2,OR,CH 2 X,CHX 2; X = C1,F,Br和杂原子; A = O,S,NH; R 5 = Me,Et,烷基; 与α,β-不饱和醛或酮在氨基化合物作为催化剂存在下反应。

    NOVEL CATALYST FOR ALDOL CONDENSATION REACTIONS
    7.
    发明申请
    NOVEL CATALYST FOR ALDOL CONDENSATION REACTIONS 审中-公开
    新型催化剂用于ALDOL冷凝反应

    公开(公告)号:WO2009045156A1

    公开(公告)日:2009-04-09

    申请号:PCT/SE2008/051091

    申请日:2008-09-29

    CPC分类号: C07B37/02 C07C45/73 C07C49/04

    摘要: The present invention presents catalytic systems for aldol condensation reactions, comprising the step of reacting at least one aldehyde or one ketone starting material in the presence of an inorganic ammonium salt, or an aqueous or organic solution prepared from such salt. The efficiency of the catalytic system of the present invention is comparable to those of the classical strong acid and strong base catalysts.

    摘要翻译: 本发明提出了用于醛醇缩合反应的催化体系,包括在无机铵盐存在下使至少一种醛或一种酮原料反应的步骤,或由该盐制备的水或有机溶液。 本发明的催化体系的效率与经典的强酸和强碱催化剂的效率相当。