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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1441474Generated: November 2, 2026

Thionyl Chloride → 7-[chloro(1-methyl-1H-imidazol-5-yl)(4-methylphenyl)methyl]-5-(3-chlorophenyl)-tetrazolo[1,5-a]quinazoline. hydrochloride

https://huagongshe.com/reaction/1441474

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant5-(3-chlorophenyl)-alpha-(1-methyl-1H-imidazol-5-yl)-alpha-(4-methylphenyl)-tetrazolo[1,5-a]quinazoline-7-methanolHCID 68687709—
Product7-[chloro(1-methyl-1H-imidazol-5-yl)(4-methylphenyl)methyl]-5-(3-chlorophenyl)-tetrazolo[1,5-a]quinazoline. hydrochlorideHCID 131727375—

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of intermediate 25 (0.0083 mol) in thionyl chloride (80 ml) was stirred at 60° C. for 3 hours, then cooled and the solvent was evaporated. The residue was taken up in DCM. The solvent was evaporated, yielding 7-[chloro(1-methyl-1H-imidazol-5-yl)(4-methylphenyl)methyl]-5-(3-chlorophenyl)-tetrazolo[1,5-a]quinazoline. hydrochloride (1:1) (intermediate 26). This product was used directly in the next reaction step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07655654B2
Source datasetuspto-grants-2010_02
ORD IDord-60cc833da79349a8a11c8c00504683bc
Source noteuspto-grants-2010_02