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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 536062Generated: October 31, 2026

Methanol → HCID 178465841, compound

https://huagongshe.com/reaction/536062

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantIodoethaneHCID 6340—
ReactantCesium carbonateHCID 10796—
ReactantHCID 178486912HCID 178486912—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 178465841HCID 17846584149%

Reaction Steps

A mixture of 6-hydroxy-7-(methyloxy)-4(1H)-quinazolinone (1 g, 5.2 mmol) in water (12 mL), MeCN (6 mL), and MeOH (1 mL) at 25° C. was treated with Cs2CO3 (1.7 g, 5.2 mmol). After the mixture was stirred for 30 minutes, iodoethane (0.42 mL, 5.2 mmol) was added and the mixture was stirred at 60° C. for 40 hours before being cooled to room temperature. The solid was collected by filtration and washed with MeOH to give 6-(ethyloxy)-7-(methyloxy)-4(1H)-quinazolinone (560 mg, 49%). MS (m/z) 221.1 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859571B2
Source datasetuspto-grants-2014_10
ORD IDord-d7d1d399a42a4e458536dd44538e48dc
Source noteuspto-grants-2014_10