[EN] PROCESS FOR THE PREPARATION OF ARYL-PIRIDYL COMPOUNDS<br/>[FR] PROCEDE POUR LA PREPARATION DE COMPOSES D'ARYL-PIRIDYLE
申请人:EUTICALS PRIME EUROP THERAPEUT
公开号:WO2004037790A1
公开(公告)日:2004-05-06
A method is described for the preparation of aryl-pyridine compounds of formula (I) by cross-coupling reaction, promoted by catalytic systems based on palladium or nickel between compounds of formula (II) and (III) in which: - Met represents Mg or Zn, - Y represents C1, Br, I or acetoxy, - Z represents I, Br, Cl, triflate, sulphonate, phosphate, - Rl, R2, R3, R4, which are the same as one another or different, represent hydrogen, a linear and/or branched Cl-C4 alkyl, and/or an aryl, and/or a heteroaryl, or Rl and R2 and/or R3and R4, taken together, form a C3-C8 ring, an aryl and/or a heteroaryl, - A represents -COR5 where R5 represents hydrogen, a linear and/or branched Cl-C4 alkyl, and/or an aryl, and/or a heteroaryl, or - A represents -CRs5(OR6)(OR7) where R5 has the meaning described above and R6 and R7, which are the same as one another or different, represent a linear and/or branched C1-C4 alkyl, and/or an aryl, and/or a heteroaryl, or R6 and R7, joined together, represent a C1-C8 alkyl or alkenyl.
描述了一种通过钯或镍基催化系统促进的交叉偶联反应制备芳基吡啶化合物的方法,该方法是在式(II)和(III)化合物之间进行的,其中:- Met代表镁或锌,- Y代表C1、Br、I或乙酰氧基,- Z代表I、Br、Cl、三氟甲磺酸盐、磷酸盐,- R1、R2、R3、R4,它们相互相同或不同,代表氢、直链和/或支链的Cl-C4烷基,和/或芳基,和/或杂环烷基,或R1和R2和/或R3和R4,一起形成一个C3-C8环,芳基和/或杂环烷基,- A代表-COR5,其中R5代表氢、直链和/或支链的Cl-C4烷基,和/或芳基,和/或杂环烷基,或-A代表-CRs5(OR6)(OR7),其中R5具有上述描述的含义,R6和R7,它们相互相同或不同,代表直链和/或支链的C1-C4烷基,和/或芳基,和/或杂环烷基,或R6和R7,结合在一起,代表一个C1-C8烷基或烯基。