Comparison Of Asymmetric Hydrogenations Of Unsaturated- Carboxylic Acids And -Esters.

Comparison Of Asymmetric Hydrogenations Of Unsaturated- Carboxylic Acids And -Esters.
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DOI:
10.1021/cs3007389
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发表时间:
2013-02-01
期刊:
影响因子:
12.9
通讯作者:
Burgess, Kevin
Burgess, Kevin
中科院分区:
化学1区
文献类型:
--
作者:
Khumsubdee, Sakunchai;Burgess, Kevin

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随着方法论开发的成熟,很难从其他方法中辨别出执行某些转换的最有效方法。本文综述了导致简单的不饱和酸和酯底物的不对称氢化的最重要的贡献,其目的是突出至少最好的类型的催化剂为每个。在该领域的成就进行了描述,这些揭示的情况下,进一步的努力应该是值得的,和更多的研究只可能给递减的回报。在一般情况下,我们的结论是,最有用的类型的不饱和酸和酯的催化剂往往有些不同,简单的底物已被广泛研究,该领域准备解决更复杂的反应。这些可能是涉及替代的,特别是环状的,结构,化学选择性问题,和更复杂的底物立体化学。
As methodology development matures it can be difficult to discern the most effective ways of performing certain transformations from the rest. This review summarizes the most important contributions leading to asymmetric hydrogenations of simple unsaturated-acid and ester substrates, with the objective of highlighting at least the best types of catalysts for each. Achievements in the area are described and these reveal situations where further efforts should be worthwhile, and ones where more research is only likely to give diminishing returns. In general, our conclusions are that the most useful types of catalysts for unsaturated-acids and -esters tend to be somewhat different, simple substrates have been studied extensively, and the field is poised to address more complex reactions. These could be ones involving alternative, particularly cyclic, structures, chemoselectivity issues, and more complex substrate stereochemistries.
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