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(1S,2S)-DPEN修饰的负载型钌膦配合物催化苯乙酮及其衍生物不对称加氢反应研究 被引量:4
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作者 熊伟 汤波 +4 位作者 刘德蓉 贾云 王孝科 袁茂林 李贤均 《化学研究与应用》 CAS CSCD 北大核心 2008年第8期1050-1055,共6页
The RuCl2(PPh3)3/γ-Al2O3 catalyst modified by chiral reagent(1S,2S)-(-)-1,2-diphenyl-1,2-ethylenediamine((1S,2S)-DPEN) was investigated for the asymmetric hydrogenation of acetophenone and its derivatives.At the opti... The RuCl2(PPh3)3/γ-Al2O3 catalyst modified by chiral reagent(1S,2S)-(-)-1,2-diphenyl-1,2-ethylenediamine((1S,2S)-DPEN) was investigated for the asymmetric hydrogenation of acetophenone and its derivatives.At the optimized reaction conditions,85% conversion of acetophenone and 82%e.e.of(R)–α-phenyl ethanol were achieved over RuCl2(PPh3)3/γ-Al2O3 catalyst modified by(1S,2S)-DPEN.Furthermore,the results indicated that there was a synergistic effect between(1S,2S)-DPEN and KOH,which significantly accelerated the reaction rate and enantioselectivity. 展开更多
关键词 钌膦配合物 苯乙酮 不对称加氢 对映选择性
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