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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2402739Generated: October 29, 2026

cis-2-Benzylhexahydrocyclopenta[c]pyrrol-4(1H)-one → HCID 11629873, compound

https://huagongshe.com/reaction/2402739

Reaction equation

Participants

RoleNameHCIDCharge
Reactantcis-2-Benzylhexahydrocyclopenta[c]pyrrol-4(1H)-oneHCID 13463770—
ReactantPotassium tert-butoxideHCID 23665647—
CatalystMethyltriphenyliphosphonium bromideHCID 74505—
SolventTetrahydrofuranHCID 8028—
ProductHCID 11629873HCID 11629873—

Reaction Steps

The title compound was prepared by combining (3aR,6aS)-2-benzylhexahydrocyclopenta[c]pyrrol-4(5H)-one (100 mg, 0.464 mmol) [prepared as described by Santora, V. J., et. al. Bioorganic & Medicinal Chemistry Letters 2008, 18(4), 1490-1494] in 2 mL of tetrahydrofuran with methyltriphenylphosphonium bromide (249 mg, 0.697 mmol) and potassium tert-butoxide (78 mg, 0.697 mmol). The reaction was stirred at room temperature overnight, concentrated, and the crude material was purified by silica gel chromatography using 1-100% ethyl acetate/hexanes to give the title compound: 1H NMR (400 MHz, pyridine-d5) δ ppm 7.47-7.41 (m, 2H), 7.40-7.33 (m, 2H), 7.31-7.25 (m, 1H), 4.93-4.89 (m, 1H), 4.80-4.76 (m, 1H), 3.55 (d, J=13.1, 1H), 3.47 (d, J=13.1, 1H), 2.96-2.87 (m, 1H), 2.63-2.41 (m, 5H), 2.33 (dd, J=8.9, 3.9, 1H), 2.17 (dddt, J=14.9, 7.4, 5.8, 1.6, 1H), 1.68 (ddd, J=16.0, 12.4, 8.1, 1H), 1.51-1.39 (m, 1H); MS (ESI+) m/z 227 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08796470B2
Source datasetuspto-grants-2014_08
ORD IDord-ede80b2309084dab8e711a453e795eb8
Source noteuspto-grants-2014_08