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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 875182Generated: October 29, 2026

Acetic Acid → HCID 33788030, compound

https://huagongshe.com/reaction/875182

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantO-PhenylenediamineHCID 7243—
ReactantCyclopropanecarboxaldehydeHCID 123114—
ReactantSodium cyanoborohydrideHCID 5003444—
SolventMethanolHCID 887—
ProductHCID 33788030HCID 3378803034.4%

Reaction Steps

To a solution of benzene-1,2-diamine (1.62 g, 15.0 mmol) and cyclopropanecarbaldehyde (1.05 g, 15.0 mmol) in MeOH (15 mL) at 0° C. was added NaCNBH3 (2.07 g, 33.0 mmol) and acetic acid (0.2 mL). The ice bath was removed and the resulting mixture was stirred at room temperature over night. The resulting mixture was diluted with EtOAc, washed with H2O, dried over Na2SO4, filtered, and concentrated in vacuo. The resultant residue was purified by flash column chromatography (SiO2), eluting with a hexanes-EtOAc gradient to yield N-cyclopropylmethyl-benzene-1,2-diamine (836 mg, 34%). MS 163 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08981113B2
Source datasetuspto-grants-2015_03
ORD IDord-06a5a88b0e0f4d899f8f26935d5846ac
Source noteuspto-grants-2015_03