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Diels-Alder reactions catalyzed by Lewis acid containing solids: renewable production of bio-plastics
US9108979B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108979-B2 |
| Application number | US-201414282099-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 20, 2014 |
| Priority date | Jun 6, 2013 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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The present disclosure is related to silica-based Lewis acid catalysts, being essentially devoid of strong Brønsted acid character, and their ability to effect the [4+2] cycloaddition and dehydrative aromatization of dienes and dienophiles containing oxygenated substituents to form substituted benzene products. In some embodiments, the processes comprise contacting biomass-derived substrates with ethylene to form terephthalic acid and its derivatives.
First claim
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What is claimed: 1. A process comprising contacting a compound of Formula (1): with a compound of Formula (2): in a non-aqueous solvent in the presence of a solid, silica-based Lewis acid catalyst that is essentially devoid of strong Brønsted acid character; un…
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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 US9108979B2 cover?
- The present disclosure is related to silica-based Lewis acid catalysts, being essentially devoid of strong Brønsted acid character, and their ability to effect the [4+2] cycloaddition and dehydrative aromatization of dienes and dienophiles containing oxygenated substituents to form substituted benzene products. In some embodiments, the processes comprise contacting biomass-derived substrates wi…
- Who is the assignee on this patent?
- California Inst Of Techn
- What technology area does this patent fall under?
- Primary CPC classification C07D493/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 18 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).