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US-2024246901-A1 · Jul 25, 2024 · US
Chlorobenzene compound production method
US11780813B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11780813-B2 |
| Application number | US-202017426154-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2020 |
| Priority date | Jan 30, 2019 |
| Publication date | Oct 10, 2023 |
| Grant date | Oct 10, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention provides a new production method for a chlorobenzene compound. Specifically, the present invention provides a production method in which the compound represented by formula (1) (in the formula, X1 represents a halogen atom) and chlorine are reacted in the presence of a Brønsted acid, thereby obtaining the chlorobenzene compound represented by formula (2) (in the formula, X1 represents the same as above).
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for preparing a compound represented by formula (2): [wherein X 1 represents a halogen atom] which comprises a step (B): a step of reacting a compound represented by formula (1): [wherein X 1 has the same meaning as described above] with chlorine in the presence of a Brønsted acid to obtain the compound represented by formula (2), wherein the Brønsted acid is hydrochloric acid or sulfuric acid. 2. A method for preparing a compound represented by formula (2): [wherein X 1 represents a halogen atom] which comprises a step (A) and the step (B) described in claim 1 : step (A): a step of reacting a compound represented by formula (3): [wherein X 2 represents a halogen atom] with a compound represented by formula (4): [wherein X 1 has the same meaning as described above] in the presence of a base to obtain the compound represented by formula (1) in claim 1 . 3. The method according to claim 1 , wherein X 1 represents a fluorine atom. 4. A method for preparing a compound represented by formula (7): [wherein X 1 represents a halogen atom] which comprises a step of reacting the compound represented by formula (2) which is prepared by the method according to claim 1 with a compound represented by formula (5): [wherein R 1 represents a C1-C5 alkyl group] to obtain a compound represented by formula (6): [wherein X 1 and R 1 have the same meanings as described above], and then hydrolyzing the compound represented by formula (6) to prepare the compound represented by formula (7).
Assignees
Inventors
Classifications
- C07D213/89Primary
with hetero atoms directly attached to the ring nitrogen atom · CPC title
- C07D213/69Primary
Two or more oxygen atoms · CPC title
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- What does patent US11780813B2 cover?
- The present invention provides a new production method for a chlorobenzene compound. Specifically, the present invention provides a production method in which the compound represented by formula (1) (in the formula, X1 represents a halogen atom) and chlorine are reacted in the presence of a Brønsted acid, thereby obtaining the chlorobenzene compound represented by formula (2) (in the formula, X…
- Who is the assignee on this patent?
- Sumitomo Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07D213/89. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 10 2023 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).