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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508955Generated: October 30, 2026

tert-Butyl piperazine-1-carboxylate → HCID 90338624, compound

https://huagongshe.com/reaction/1508955

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant2,4-Dichloro-6,7-dihydro-5H-cyclopenta[b]pyridineHCID 12214817—
ProductHCID 90338624HCID 9033862419.2%

Reaction Steps

Following general procedure B1, 2,4-dichloro-6,7-dihydro-5H-cyclopenta[b]pyridine (0.150 g, 0.80 mmol) was reacted with tert-butyl piperazine-1-carboxylate (0.223 g, 1.2 mmol) to afford the title compound (0.052 g, 19%) as a yellow solid. MW=337.84. 1H NMR (CDCl3, 500 MHz) δ 6.39 (s, 1H), 3.56-3.50 (m, 4H), 3.49-3.44 (m, 4H), 2.92 (t, J=7.5 Hz, 2H), 2.87 (t, J=7.5 Hz, 2H), 2.08 (quin, J=7.5 Hz, 2H), 1.48 (s, 9H); APCI MS m/z 338[M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221843B2
Source datasetuspto-grants-2015_12
ORD IDord-cb0dc58760114caf9b3f86bcbb4a50ab
Source noteuspto-grants-2015_12