HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 2-chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbaldehyde
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Ethylacetate heptane | HCID 21899848 | — |
| Reactant | 2-chloro-7-cyclopentyl-6-diethoxymethyl-7H-pyrrolo[2,3-d]pyrimidine | HCID 58315449 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | 2-chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbaldehyde | HCID 58315405 | 82.9% |
Reaction Steps
A mixture of 2-chloro-7-cyclopentyl-6-diethoxymethyl-7H-pyrrolo[2,3-d]pyrimidine (4.26 g, 13 mmol) in dioxane is added concentrated HCl. After reaction is completed within 10 min, water is added and then extracted with ethyl acetate. Solvent is removed to give a brown color crude product. Column is run using heptane/ethyl acetate (6:4) to give 2-chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbaldehyde (2.69 g, 82%). MS (ESI) m/z 350.4 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09416136B2 |
| Source dataset | uspto-grants-2016_08 |
| ORD ID | ord-d2e7e18f92154dfe8dfd838073ab0351 |
| Source note | uspto-grants-2016_08 |