申请人:Takasago International Corporation
公开号:EP0295890A2
公开(公告)日:1988-12-21
A carbonyl compound represented by the formula:
wherein A represents C1-7 alkyl or haloalkyl, optionally substituted phenyl, or optionally substituted benzyl; and B represents C1-4 acyl, C1-7 alkoxycarbonyl, haloalkyl, hydroxycarbonyl, C1-7 alkoxyalkyl, hydroxymethyl, optionally substituted benzoyl or C1-7 alkyl-substituted aminomethyl; or A and B with the adjacent C atom form an optionally substituted cyclic 5- or 6-membered 1,2-diketone, is dissolved in amphiprotic solvent and there is added 100-1/50,000 mol of a ruthenium-optically active phosphine derivative as catalyst, e.g. of formula RuxHyClz(R-BINAP)₂-(S)p (III) or [RuH₁(R-BINAP)v]Yw (V) wherein BINAP is a specific tertiary phosphine group.
The compound (I) is reacted with hydrogen at a pressure of 5-40 kg/cm² for 1-48 hours and there is recovered in high yield as product an optically active alcohol of the formula (II) wherein the =C=O group has become =CH-OH.
一种由式表示的羰基化合物:
其中 A 代表 C1-7 烷基或卤代烷基、任选取代的苯基或任选取代的苄基;而 B 代表 C1-4 乙酰基、C1-7 烷氧基羰基、卤代烷基、羟基羰基、C1-7 烷氧基烷基、羟甲基、任选取代的苯甲酰基或 C1-7 烷基取代的氨甲基;或 A 和 B 与相邻的 C 原子形成任选取代的环状 5 元或 6 元 1,2-二酮,溶解在两性溶剂中,并加入 100-1/50,000 摩尔的钌光活性膦衍生物作为催化剂,如例如,式 RuxHyClz(R-BINAP)₂-(S)p (III) 或 [RuH₁(R-BINAP)v]Yw (V) 其中 BINAP 是特定的叔膦基团。
在 5-40 kg/cm² 的压力下,将化合物 (I) 与氢气反应 1-48 小时,以高产率回收式 (II) 的光学活性醇,其中 =C=O 基团变为 =CH-OH。