Hydrogenation reaction method
US-2016326093-A1 · Nov 10, 2016 · US
Asymmetric hydrogenation method for ketone compound
US8962852B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8962852-B2 |
| Application number | US-201213447632-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2012 |
| Priority date | Aug 22, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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The invention relates to an asymmetric hydrogenation method for ketone compounds, comprising the step of: under hydrogen atmosphere, in the presence of an in situ catalyst derived from a chiral ligand and a ruthenium salt, adding a ketone compound and a base into a second solvent to carry out an asymmetric hydrogenation for the ketone compound. The invention can obtain a conversion of 100% and a highest asymmetric inducement effect of 99.7% for the ketone compound. The invention has the advantages including simple procedure, high conversion and selectivity, good atom economy and good prospect of industrial application.
First claim
Opening claim text (preview).
The invention claimed is: 1. An asymmetric hydrogenation method for ketone compounds, comprising the step of: under hydrogen atmosphere with a hydrogen pressure of 3˜50 atm, in the presence of an in situ catalyst derived from a chiral ligand and a ruthenium salt, adding a ketone compound and a base into a second solvent to carry out an asymmetric hydrogenation for the ketone compound; wherein the chiral ligand is a compound of formula (IV):…
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- C07C29/145Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8962852B2 cover?
- The invention relates to an asymmetric hydrogenation method for ketone compounds, comprising the step of: under hydrogen atmosphere, in the presence of an in situ catalyst derived from a chiral ligand and a ruthenium salt, adding a ketone compound and a base into a second solvent to carry out an asymmetric hydrogenation for the ketone compound. The invention can obtain a conversion of 100% and …
- Who is the assignee on this patent?
- Zhang Wanbin, Liu Delong, Guo Hui, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C07C29/145. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).