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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490829Generated: October 30, 2026

Malononitrile → 2-Amino-3-cyano-4-(3,5-dimethoxyphenyl)-7-methyl-4H-pyrrolo[2,3-h]chromene

https://huagongshe.com/reaction/490829

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalononitrileHCID 8010—
Reactant3,5-DimethoxybenzaldehydeHCID 81747—
Reactant4-Hydroxy-1-methylindoleHCID 15825739—
Product2-Amino-3-cyano-4-(3,5-dimethoxyphenyl)-7-methyl-4H-pyrrolo[2,3-h]chromeneHCID 10428659—

Reaction Steps

The title compound was prepared from 4-hydroxy-1-methylindole (40 mg, 0.27 mmol), 3,5-dimethoxybenzaldehyde (45 mg, 0.27 mmol) and malononitrile (18 mg, 0.27 mmol) similar to Example 24 to yield 62 mg (60%) of white solids. 1H NMR (CDCl3): 7.04-7.00 (m, 2H), 6.81 (d, J=8.4 Hz, 1H), 6.55 (d, J=3.0 Hz, 1H), 6.37-6.31 (m, 3H), 4.77 (s, 1H), 4.64 (brs, 2H), 3.77-3.74 (m, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528164B2
Source datasetuspto-grants-2009_05
ORD IDord-c0f873d5bb624d649fc94db6fca1ded5
Source noteuspto-grants-2009_05