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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1924306Generated: November 1, 2026

Cyclopropanecarboxaldehyde → HCID 53629179, compound

https://huagongshe.com/reaction/1924306

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopropanecarboxaldehydeHCID 123114—
Reactant5-Bromopyridine-2,3-diamineHCID 691156—
SolventAcetic AcidHCID 176—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 53629179HCID 5362917921%

Reaction Steps

A solution of cyclopropanecarbaldehyde (0.89 g, 12.76 mmol, 1.2 eq), 5-bromopyridine-2,3-diamine x167 (2 g, 10.63 mmol, 1 eq) in AcOH (20 ml) and 1,4-dioxane (40 ml) is heated at 110° C. during 24 hours. After cooling, the solvents are evaporated under reduced pressure. The resulting brown solid is recrystallized in CH2Cl2/hexane (1/1) to yield 0.53 g of 6-bromo-2-cyclopropyl-1H-imidazo[4,5-b]pyridine x168 as an orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178533B2
Source datasetuspto-grants-2012_05
ORD IDord-fff69518a5a047c8b9ee08c9b4e00080
Source noteuspto-grants-2012_05