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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335202Generated: October 29, 2026

1,1'-Carbonyldiimidazole → HCID 178518918, compound

https://huagongshe.com/reaction/335202

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant3-(2-(5-Bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)propanehydrazideHCID 86631513—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178518918HCID 17851891828.31%

Reaction Steps

To a mixture of 3-(2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)propanehydrazide (0.150 g, 0.345 mmol) in THF (5 mL) was added TEA (0.04814 mL, 0.3454 mmol) and cooled in an ice bath. To this mixture was added. CDI (0.0672 g, 0.414 mmol) in one portion. The mixture was allowed to warm to ambient temperature and was then heated at 50° C. overnight. The reaction was concentrated to dryness, dissolved in CH2Cl2 and washed with water, dried over Na2SO4, concentrated to a residue that was purified by preparative HPLC to give the title compound (0.045 g, 28.31% yield) was white solids. 1H NMR (d6 DMSO) δ 2.91 (s, 4H), 6.75 (s, 1H), 7.10 (d, J=7.8 Hz, 2H), 7.21 (t, J=7.4 Hz, 1H), 7.40 (d, J=2.1 Hz, 1H), 7.44 (t, J=7.9 Hz, 2H), 8.22 (d, J=2.1 Hz, 1H), 11.03 (br s, 1H), 12.04 (br s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883828B2
Source datasetuspto-grants-2014_11
ORD IDord-1f4bffe03076499d9796704b9d623824
Source noteuspto-grants-2014_11