Transfer Hydrogenation of Aldehydes and Asymmetric Direct Aldol Reaction on Amphiphilic Catalysts Assembled in Emulsion | |
Li J(李军) ; Zhong L(钟琳) ; Gao JB(高金波) ; Li C(李灿) | |
2009-09-13 | |
会议名称 | 第十三届亚洲化学会 |
会议日期 | 2009-9-13 |
会议地点 | china |
页码 | 79/1 |
通讯作者 | 李灿 |
中文摘要 | in our previous work, we developed the selective oxidation of alcohols on emulsion catalysis, where amphiphilic catalyst was assembled at the interface of emulsion[1]. recently, emulsion catalysis further extends to transfer hydrogenation and asymmetric direct aldol reactions (scheme 1)[2,3]. in transfer hydrogenation reaction, tof is up to 3.0 × 105 h-1 in the emulsion system and 30-fold rate acceleration is achieved compared with biphasic system. in asymmetric direct aldol reaction, not only is the rate of reaction enhanced, but also the regio- and enantioselectivies of product are improved significantly. the ee value beyond 99% is obtained. these excellent performances in emulsion can be ascribed to a large reaction area, the enrichment of local concentrations of reactants and uniform orientation of chiral catalyst at the interphase of emulsion. |
会议主办者 | chinese chemical society |
学科主题 | 物理化学 |
语种 | 中文 |
内容类型 | 会议论文 |
源URL | [http://159.226.238.44/handle/321008/113818] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
推荐引用方式 GB/T 7714 | Li J,Zhong L,Gao JB,et al. Transfer Hydrogenation of Aldehydes and Asymmetric Direct Aldol Reaction on Amphiphilic Catalysts Assembled in Emulsion[C]. 见:第十三届亚洲化学会. china. 2009-9-13. |
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