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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2353234Generated: October 26, 2026

tert-Butyl piperazine-1-carboxylate → 4-(4-Phenoxy-phenyl)-piperazine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/2353234

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant4-Iododiphenyl etherHCID 520399—
Product4-(4-Phenoxy-phenyl)-piperazine-1-carboxylic acid tert-butyl esterHCID 4481898875.5%

Reaction Steps

The title compound (3.5 g, 75.5%) was prepared from 1-iodo-4-phenoxy-benzene (3.9 g, 13.1 mmol) and 1-Boc-piperazine (2.5 g, 13.1 mmol) by the procedure described in step 1 of Example 4: MS (ESI) m/z 355 (M+H); 1H NMR (400 MHz, CDCl3) δ 1.49 (s, 9H), 3.08 (t, J=4.8 Hz, 4H), 3.59 (t, J=4.8 Hz, 4H), 6.90-7.09 (m, 7H), 7.27-7.32 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07750012B2
Source datasetuspto-grants-2010_07
ORD IDord-6f04d5d4a66a4353ad9d44d5a53a2723
Source noteuspto-grants-2010_07