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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 471487Generated: October 25, 2026

Benzaldehyde → 2-(Benzylamino)-4,5-dimethylthiophene-3-carbonitrile

https://huagongshe.com/reaction/471487

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
Reactant2-Amino-4,5-dimethyl-thiophene-3-carbonitrileHCID 290236—
ReactantCyano-borohydrideHCID 498716—
SolventAcetic AcidHCID 176—
Solvent1,1-DichloroethaneHCID 6365—
Product2-(Benzylamino)-4,5-dimethylthiophene-3-carbonitrileHCID 319451—

Reaction Steps

To a solution of 2-amino-4,5-dimethylthiophene-3-carbonitrile (151 mg, 1.0 mmol) and benzaldehyde (106 mg, 1 mmol) in 15 mL of 4% acetic acid in dichloroethane was added silica supported cyanoborohydride (2.0 g. 2.0 mmol). The reaction was placed in a microwave reactor for 5 minutes at 135° C. Silica supported cyanoborohydride was removed by filtration, and the product was purified by prep HPLC using acetonitrile/water as solvent. MS 243 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08633186B2
Source datasetuspto-grants-2014_01
ORD IDord-4ef9a164b639420db675f7850a5a41fe
Source noteuspto-grants-2014_01