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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 601719Generated: October 30, 2026

Water → HCID 40126890, compound

https://huagongshe.com/reaction/601719

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantButylamineHCID 8007—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
SolventTetrahydrofuranHCID 8028—
ProductHCID 40126890HCID 40126890—

Reaction Steps

Butylamine (20 g, 0.23 mol) was dissolved in 100 mL of THF and added at a quick dropwise rate to a suspension of carbonyldiimidazole (37.2 g, 0.23 mol) in 200 mL of THF. The solution was headed to reflux for 3 h, then cooled, treated with 200 mL of water, and partitioned into ethyl acetate. The organic layer was separated and then washed with brine, dried with MgSO4, and then concentrated to the crude imidazolide, which was purified by distillation at 108° C. and 600 mtorr to provide a pure oil. 1H NMR (400 MHz, CDCl3) δ ppm 7.86 (s, 1H), 7.21 (s, 1H), 7.10 (s, 1H), 3.40 (t, J=7.60 Hz, 2H), 3.06 (s, 3H), 1.61 (m, 2H), 1.31 (m, 2H), 0.93 (t, J=7.23 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07902218B2
Source datasetuspto-grants-2011_03
ORD IDord-4b58b45e34f047b08b678837bb83d96a
Source noteuspto-grants-2011_03