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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 442692Generated: November 2, 2026

Chlorosuccinimide → HCID 53981427, compound

https://huagongshe.com/reaction/442692

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosuccinimideHCID 31398—
ReactantHCID 9839097HCID 9839097—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 53981427HCID 5398142747.4%

Reaction Steps

To a solution of 1-(4-aminophenyl)-7,8-methylenedioxy-3,5-dihydro-2,3-benzodiazepin-4(4H)-one (118 mg, 0.400 mmol) in DMF (3 mL) was added NCS (51 mg, 0.38 mmol). The mixture was stirred at room temperature for 20 h, diluted with EtOAc (50 mL), washed with water and brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by chromatography (1:1 hexane/EtOAc) to afford the title compound as a tan solid (60 mg, 0.18 mmol, 45%), mp: 256°-258° C. 1H NMR (CDCl3) 8.50 (s, 1H), 7.54 (s, 1H), 7.32(d, J=8.3, 1H), 6.82 (s, 1H), 6.77 (d, J=8.3, 1H), 6.69 (s, 1H), 6.04 (s, 2H), 4.33 (s, 2H), 3.42 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05891871
Source datasetuspto-grants-1999_04
ORD IDord-80a63c5275104f23839b9382761f4b58
Source noteuspto-grants-1999_04