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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62112Generated: October 26, 2026

Potassium Bromide → 9-(4-Bromobenzo[d][1,3]dioxol-5-ylamino)thiazolo[5,4-f]quinazoline-2-carbonitrile

https://huagongshe.com/reaction/62112

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium BromideHCID 253877—
Reactant2-Bromo-3,4-(methylenedioxy)anilineHCID 89415048—
ReactantHCID 178484237HCID 178484237—
SolventDichloromethane ethylacetateHCID 21226138—
Product9-(4-Bromobenzo[d][1,3]dioxol-5-ylamino)thiazolo[5,4-f]quinazoline-2-carbonitrileHCID 7127775421%

Reaction Steps

Prepared from VII and 2-bromo-3,4-(methylenedioxy)aniline. Flash chromatography eluent (DCM-EtOAc, 5:5). Yield: 21%; yellow solid, mp>260° C.; IR (KBr) νmax/cm−1 2887, 2233, 1632, 1610, 1581, 1501, 1484, 1465, 1379, 1348, 1303, 1267, 1232, 1161, 1116, 1034, 970, 929, 829; 1H NMR (300 MHz, DMSO-d6) δ 8.49 (d, 1H, J=9.0 Hz), 8.06 (s, 1H), 7.77 (d, 1H, J=9.0 Hz), 7.25 (s, 1H), 6.83 (s, 1H), 6.06 (s, 2H); HRMS calcd for C17H9N5O2SBr (M+H+): 425.9660, found 425.9646.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09446044B2
Source datasetuspto-grants-2016_09
ORD IDord-3067c214906643cfa6ab8ea7d70afe26
Source noteuspto-grants-2016_09