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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62111Generated: October 25, 2026

1,3-Benzodioxol-5-amine → 9-(Benzo[d][1,3]dioxol-5-ylamino)thiazolo[5,4-f]quinazoline-2-carbonitrile

https://huagongshe.com/reaction/62111

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-Benzodioxol-5-amineHCID 84310—
ReactantPotassium BromideHCID 253877—
ReactantHCID 178484237HCID 178484237—
SolventDichloromethane ethylacetateHCID 21226138—
Product9-(Benzo[d][1,3]dioxol-5-ylamino)thiazolo[5,4-f]quinazoline-2-carbonitrileHCID 7127776349%

Reaction Steps

Prepared from VII and 3,4-(methylenedioxy)aniline. Flash chromatography eluent (DCM-EtOAc, 9:1). Yield: 49%; orange solid; mp>260° C.; IR (KBr) νmax/cm−1 2894, 2226, 1734, 1706, 1645, 1609, 1581, 1555, 1499, 1471, 1377, 1354, 1304, 1264, 1236, 1211, 1188, 1162, 1125, 1086, 1037, 972, 938, 924, 859, 829, 809; 1H NMR (300 MHz, DMSO-d6) δ 8.51 (d, 1H, J=9.0 Hz), 8.14 (m, 1H), 7.76 (m, 1H), 6.94 (d, 2H, J=9.0 Hz), 6.72 (m, 1H), 6.02 (s, 2H); HRMS calcd for C17H9N5O2S (M+H+): 348.0555, found 348.0566.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09446044B2
Source datasetuspto-grants-2016_09
ORD IDord-0e43432147f944afa1523ebf3b74f799
Source noteuspto-grants-2016_09