申请人:Sumitomo Chemical Company, Limited
公开号:US04337346A1
公开(公告)日:1982-06-29
An optically active or racemic .alpha.-hydroxyaldehyde represented by the general formula (2), ##STR1## wherein R.sub.1 represents a C.sub.6 -C.sub.14 aryl group, C.sub.1 -C.sub.10 alkyl group, C.sub.3 -C.sub.10 alkenyl group, C.sub.2 -C.sub.10 alkynyl group, C.sub.7 -C.sub.14 aralkyl group, or a group containing a functional group in the organic portion of said groups and R.sub.2 represents a C.sub.1 -C.sub.10 alkyl group, C.sub.2 -C.sub.10 alkenyl group, C.sub.2 -C.sub.10 alkynyl group, C.sub.7-C.sub.14 aralkyl group, C.sub.6 -C.sub.14 aryl group, or a group containing a functional group in the organic portion of these groups, which is an important intermediate for preparation of pharmaceuticals and agricultural chemicals, and prepared by allowing an optically active or racemic compound represented by the general formula (1), ##STR2## (wherein A represents a C.sub.6 -C.sub.14 aryl group or a C.sub.1 -C.sub.4 alkyl or alkoxy group- or halogen-substituted C.sub.6 -C.sub.14 aryl group and R.sub.1 is as defined above) to react with a Grignard reagent, and thereafter hydrolyzing the reaction product.
一种光学活性或外消旋的α-羟基醛,由通式(2)表示,其中R1代表C6-C14芳基,C1-C10烷基,C3-C10烯基,C2-C10炔基,C7-C14芳基烷基或含有所述基有机部分中的功能基团的基团,R2代表C1-C10烷基,C2-C10烯基,C2-C10炔基,C7-C14芳基烷基,C6-C14芳基或含有这些基有机部分中的功能基团的基团。该化合物是制备药物和农药的重要中间体,通过使通式(1)表示的光学活性或外消旋化合物(其中A表示C6-C14芳基或C1-C4烷基或烷氧基或卤素取代的C6-C14芳基,R1如上所述)与格氏试剂反应,然后水解反应产物制备而成。