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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508972Generated: October 30, 2026

(Cyclopent-1-en-1-yl)boronic acid → HCID 90338499, compound

https://huagongshe.com/reaction/1508972

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(Cyclopent-1-en-1-yl)boronic acidHCID 3861343—
Reactant2,4-Dichloro-6,7-dihydro-5H-cyclopenta[b]pyridineHCID 12214817—
ProductHCID 90338499HCID 9033849965%

Reaction Conditions

Temperature140 °C

Reaction Steps

Following general procedure F except the reaction was heated to 140° C. under microwave irradiation for 2 h, 2,4-dichloro-6,7-dihydro-5H-cyclopenta[b]pyridine (0.157 g, 0.84 mmol) was reacted with cyclopent-1-en-1-ylboronic acid (0.112 g, 1.0 mmol) to afford the title compound (0.120 g, 65%) as a white solid. MW=219.71. 1H NMR (CDCl3, 500 MHz) δ 7.06 (s, 1H), 6.62-6.57 (m, 1H), 3.06 (t, J=7.5 Hz, 2H), 2.97 (t, J=7.5 Hz, 2H), 2.77-2.70 (m, 2H), 2.58-2.52 (m, 2H), 2.13 (quin, J=7.5 Hz, 2H), 2.08-2.00 (m, 2H); APCI MS m/z 220 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221843B2
Source datasetuspto-grants-2015_12
ORD IDord-d3c0d8c1e496477c928304c26aee5894
Source noteuspto-grants-2015_12