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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1768417Generated: October 31, 2026

Malononitrile → HCID 22136803, compound

https://huagongshe.com/reaction/1768417

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalononitrileHCID 8010—
ReactantPiperidineHCID 8082—
Reactant2'-HydroxybenzophenoneHCID 8348—
SolventEthanolHCID 702—
ProductHCID 22136803HCID 2213680348.7%

Reaction Conditions

Temperature2.5 °C

Reaction Steps

To a mixture of 2-hydroxybenzophenone (2.0 g, 10 mmol) and malononitrile (661 mg, 10 mmol) in ethanol (15 mL) was added piperidine (0.5 mL, 5.0 mmol). The mixture was stirred under 0-5° C. for 2 h. The solvent was evaporated and the residue was purified by chromatography on silica gel with ethyl acetate and hexane (1:2) as eluant, yielding 1.2 g (48%) of the title compound. 1H NMR (CDCl3): 7.74-7.29 (m, 7H), 7.20-7.13 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07235674B2
Source datasetuspto-grants-2007_06
ORD IDord-d5b0e0e88c5640cbb3de89d2383a919e
Source noteuspto-grants-2007_06