HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 44907Generated: October 25, 2026
4-Chloro-1H-pyrrolo[2,3-b]pyridine → 4-(4-bromo-3-methyl-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine
https://huagongshe.com/reaction/44907
Participants
| Role | Name | HCID | Charge |
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| Reactant | 4-Chloro-1H-pyrrolo[2,3-b]pyridine | HCID 11389493 | — |
| Reactant | HCID 178434489 | HCID 178434489 | — |
| Product | 4-(4-bromo-3-methyl-1H-pyrazol-1-yl)-1H-pyrrolo[2,3-b]pyridine | HCID 17754465 | 87.5% |
Reaction Steps
A mixture of 4-chloro-1H-pyrrolo[2,3-b]pyridine (0.050 g, 0.00033 mol) and 4-bromo-3-methyl-1H-pyrazole (0.10 g, 0.00066 mol) was heated at 130° C. overnight. The reaction mixture then was subjected to column chromatography (eluting with 5% MeOH/DCM, 0.5% NH4OH, on silica gel) to give 80 mg pale yellow solid which was triturated with MeOH (1.5 mL) to yield the product as a pale yellow solid (44 mg, 44% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08541425B2 |
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| Source dataset | uspto-grants-2013_09 |
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| ORD ID | ord-c28a6041338b440a8499238ce2e3cd91 |
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| Source note | uspto-grants-2013_09 |
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