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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290794Generated: October 30, 2026

Water → HCID 9800720, compound

https://huagongshe.com/reaction/1290794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant3,4,5-TrimethoxyanilineHCID 32285—
ReactantHCID 18918773HCID 18918773—
SolventTetrahydrofuranHCID 8028—
ProductHCID 9800720HCID 980072077.4%

Reaction Steps

To a solution of 3,4,5-trimethoxyaniline (0.401 g) in tetrahydrofuran at room temperature under nitrogen was added sodium hydride (60% oil dispersion, 0.16 g) in portions over 2-3 minutes. The mixture was stirred for 15 minutes, and then 7-methoxy-2-methylthio-5,6-dihydrobenzo[h]quinazoline (0.258 g) was added, and the mixture was refluxed for 4 hours. The reaction mixture was poured into 300 ml of water, and the resulting yellow precipitate filtered off, washed with pentane, and dried under vacuum, giving 7-methoxy-2-(3,4,5-trimethoxyanilino)-5,6-dihydrobenzo[h]quinazoline (0.3042 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05753663
Source datasetuspto-grants-1998_05
ORD IDord-b8e7613b93484c60b38b33071a39df00
Source noteuspto-grants-1998_05