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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 505321Generated: October 27, 2026

Methyl iodide → HCID 178503336, compound

https://huagongshe.com/reaction/505321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
Reactant3,4-dihydro-1H-quinazoline-2-thioneHCID 3644854—
SolventEthanolHCID 702—
ProductHCID 178503336HCID 17850333668.2%

Reaction Steps

Methyl iodide (11.5 ml, 184 mmol) was added to a solution of 3,4-dihydro-1H-quinazoline-2-thione (7.55 g, 46 mmol) in ethanol (150 ml), and the mixture was heated to reflux (3.5 h). The majority of the solvent was then evaporated under reduced pressure, and the precipitate was collected by filtration and washed with a small amount of cold ethanol. The thus obtained title compound (9.60 g, 68%) was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07781441B2
Source datasetuspto-grants-2010_08
ORD IDord-28c044463eae4443abda887d865e23ed
Source noteuspto-grants-2010_08