Novel Chiral Alfa-Amino Tertiary Boronic Esters
US-2020079799-A1 · Mar 12, 2020 · US
Process for preparing 2-methyl-N-(2′-methylbutyl)butanamide
US11970432B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11970432-B2 |
| Application number | US-202318175740-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2023 |
| Priority date | Jun 7, 2021 |
| Publication date | Apr 30, 2024 |
| Grant date | Apr 30, 2024 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention provides a process for preparing 2-methyl-N-(2′-methylbutyl)butanamide of the following formula (1): the process comprising: subjecting an α-arylethyl-2-methylbutylamine compound of the following general formula (2): wherein Ar represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, to N-2-methylbutyrylation to form an N-α-arylethyl-2-methyl-N-(2′-methylbutyl)butanamide compound of the following general formula (3): wherein Ar is as defined above, and removing the α-arylethyl group of the resulting compound (3) to form 2-methyl-N-(2′-methylbutyl)butanamide (1).
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for preparing a mixture of diastereomers of general formulae (2R*,αR*)-(2) and (2S*,αR*)-(2) of an α-arylethylamine compound: wherein the hashed bond and the bold bonds represent a relative configuration, and Ar represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, the process comprising: separating the mixture of the diastereomers of general formulae (2R*,αR*)-(2) and (2S*,αR*)-(2) of the α-arylethylamine compound from an α-arylethyl-2-methylbutylamine compound of general formula (2): wherein Ar of general formula (2) represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms.
Assignees
Inventors
Classifications
- C07C231/14Primary
by formation of carboxamide groups together with reactions not involving the carboxamide groups · CPC title
by separation of optical isomers · CPC title
- C07C231/02Primary
from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines · CPC title
Optical isomers · CPC title
by reactions not involving the formation of carboxamide groups · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11970432B2 cover?
- The present invention provides a process for preparing 2-methyl-N-(2′-methylbutyl)butanamide of the following formula (1): the process comprising: subjecting an α-arylethyl-2-methylbutylamine compound of the following general formula (2): wherein Ar represents a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, to N-2-methylbutyrylation to form an N-α-arylethyl-2-methyl-N-(2′…
- Who is the assignee on this patent?
- Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07C231/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 30 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).