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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523589Generated: October 31, 2026

Cyclopentanone → HCID 70982889, compound

https://huagongshe.com/reaction/523589

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentanoneHCID 8452—
Reactant3-BromopyridineHCID 12286—
ReactantDiisopropylethylamineHCID 81531—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 70982889HCID 7098288934%

Reaction Steps

Using analogous reaction condition and reagents as described in Example 20 for the preparation of I-20a above, 3-bromo pyridine solution (1.0 g, 6.36 mmol) was reacted with cyclopentanone solution (0.6 mL, 70 mmol) in dry THF (6 mL), n-BuLi solution (4.0 mL, 7.6 mmol) and diisopropylethyl amine (1.0 mL, 70 mmol) in dry THF (6 mL) to afford the crude product. The crude was purified by column chromatography on silica gel (20% ethyl acetate in hexane) afforded 520 mg of the product (34% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09339501B2
Source datasetuspto-grants-2016_05
ORD IDord-ef14f93232014c65abed3fabb3e69306
Source noteuspto-grants-2016_05