[EN] PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY ENRICHED COMPOUNDS<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES ENRICHIS EN ENANTIOMERES
申请人:DSM IP ASSETS BV
公开号:WO2003099745A1
公开(公告)日:2003-12-04
Process for the preparation of enantiomerically enriched compounds with Formula Ar-C(R1)-C(R2)-Z wherein Ar represents an optionally substituted (hetero)aryl group, R1 and R2, each independently, represent H, an alkyl, (hetero)aryl, dialkylamino, amido, thioether, alkoxy or aryloxy group with the proviso that not both R1 and R2 represent H, or R1 and R2 form together with the C-atoms to which they are bound a (hetero)alkyl or (hetero) alkenyl ring and Z represents an electron withdrawing group, in which process a boronic acid derivate of Formula Ar-B(OR3)OR4 or its anhydride, wherein Ar is as described above and R3 and R4, each independently, represent H or an alkyl group, is reacted with an olefinic unsaturated compound with Formula R2 - C = C - (R1)Z, wherein R1, R2 and Z are as described above, in the presence of a transition metal catalyst comprising a transition metal chosen from Cu and group VIII of the Periodic Table and an enantiomerically enriched ligand L, having the Formula (I) where Cn together with the two O-atoms and the P-atom forms a substituted or non-substituted ring with 2-6 C-atoms, R5 and R6 each independently stand for H, an optionally substituted alkyl, aryl, alkaryl, or aralkyl group, or represent the group with Formula (II) wherein Cn1 may have the same meanings as given for Cn and B represents a bridging group, or R5 and R6 may form a heterocyclic ring together with the N-atom to which they are bound.
制备具有Ar-C(R1)-C(R2)-Z式的对映富集化合物的过程,其中Ar代表可选择取代的(杂)芳基团,R1和R2分别独立地代表H、烷基、(杂)芳基、二烷基氨基、酰胺、硫醚、烷氧基或芳氧基团,但R1和R2不同时代表H,或者R1和R2与它们结合的C原子一起形成(杂)烷基或(杂)烯基环,Z代表一个电子吸引基团,在该过程中,以Formula Ar-B(OR3)OR4或其酐的硼酸衍生物为反应物,其中Ar如上所述,R3和R4分别独立地代表H或烷基团,与Formula R2 - C = C - (R1)Z的烯烃不饱和化合物反应,其中R1、R2和Z如上所述,在Cu和周期表第VIII族的过渡金属选择的过渡金属催化剂存在下,以对映富集的配体L为特征,其具有Formula (I),其中Cn与两个氧原子和磷原子一起形成具有2-6个C原子的取代或非取代环,R5和R6分别独立地代表H、可选择取代的烷基、芳基、烷芳基或芳基基团,或代表具有Formula (II)的基团,其中Cn1可能具有与Cn相同的含义,B代表一个桥联基团,或者R5和R6可以与它们结合的N原子一起形成一个杂环。