HuagongsheHuagongshe Chemistry Print Report · For research reference only
1H-Pyrazole-5-carboxylic acid, 3-bromo-1-(3-chloro-2-pyridinyl)-4,5-dihydro-, ethyl ester → 3-Bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1H-Pyrazole-5-carboxylic acid, 3-bromo-1-(3-chloro-2-pyridinyl)-4,5-dihydro-, ethyl ester | HCID 10065383 | — |
| Reactant | Ethyl 3-Bromo-1-(3-chloro-2-pyridinyl)-1H-pyrazole-5-carboxylate | HCID 11587974 | — |
| Product | 3-Bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylic acid | HCID 11587535 | — |
Reaction Steps
The following Example 10 illustrates an alternative preparation of ethyl 3-bromo-1-(3-chloro-2-pyridinyl)-4,5-dihydro-1H-pyrazole-5-carboxylate, which can be used to prepare, for example, ethyl 3-bromo-1-(3-chloro-2-pyridinyl)-1H-pyrazole-5-carboxylate (i.e. product of Example 9, Step B).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08148521B2 |
| Source dataset | uspto-grants-2012_04 |
| ORD ID | ord-6bbcd462248a4735aa251544e5a1ddb1 |
| Source note | uspto-grants-2012_04 |