AN IMPROVED ASYMMETRICALLY-MODIFIED NICKEL-CATALYST PREPARED FROM ULTRASONICATED RANEY-NICKEL

被引：52

作者：

TAI, A

KIKUKAWA, T

SUGIMURA, T

INOUE, Y

ABE, S

OSAWA, T

HARADA, T

机构：

[1] DAICEL CHEM IND LTD, HYOGO 67112, JAPAN

[2] RYUKOKU UNIV, FAC SCI & TECHNOL, SHIGA 52021, JAPAN

[3] TOTTORI UNIV, FAC GEN EDUC, TOTTORI 680, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1994年 / 67卷 / 09期

关键词：

D O I：

10.1246/bcsj.67.2473

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ultrasonic irradiation of Raney nickel catalyst in water followed by the removal of the resulting turbid supernatant gave an excellent nickel catalyst (RNi-U) which generated an asymmetrically-modified nickel catalyst. An EPMA (SEM-EDX) study indicated that RNi-U consisted of a fairly pure nickel surface of homogeneous size. Tartaric acid-NaBr-modified RNi-U (TA-NaBr-MRNi-U) showed a high enantio-differentiating ability as well as reactivity in the hydrogenation of prochiral ketones such as 1,3-diones and 3-oxoalkanoic acid esters.

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页码：2473 / 2477

页数：5

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