Butadiene telomerization catalyst precursor preparation
US-2016271601-A1 · Sep 22, 2016 · US
Butadiene telomerization catalyst preparation and use thereof
US11999674B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11999674-B2 |
| Application number | US-202318332907-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2023 |
| Priority date | Apr 10, 2015 |
| Publication date | Jun 4, 2024 |
| Grant date | Jun 4, 2024 |
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Abstract
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Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
First claim
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The invention claimed is: 1. A process to telomerize butadiene comprising contacting butadiene and a catalyst composition comprising a complex comprising palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ligand, as set forth in structures (I) and (II), and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl, under conditions sufficient to telomerize at least a portion of the butadiene. 2. The process of claim 1 , wherein the ligand is a methoxyoctadiene ligand. 3. The process of claim 1 , wherein the ligand is an octadienyl ligand. 4. The process of claim 1 , wherein the ligand is a protonated octadienyl.
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- What does patent US11999674B2 cover?
- Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from gr…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C07C2/406. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 04 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).