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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1645819Generated: October 30, 2026

Hydrochloric Acid → HCID 19802564, compound

https://huagongshe.com/reaction/1645819

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(Dimethyl sulfide)trihydroboronHCID 12423031—
ReactantHCID 67749829HCID 67749829—
SolventTetrahydrofuranHCID 8028—
ProductHCID 19802564HCID 19802564—

Reaction Conditions

Temperature90 °C

Reaction Steps

2.0 M Borane-methylsulphide in THF (45 ml) was added over 45 mins to a solution of 1-(2-methoxyphenyl)-4-[1-oxo-2-phenyl-2-(4-phenyl-1H-imid azol-1-yl) ethyl]piperazine (4.0 g, 0.009 m, prepared in an analogous manner to the method of Example 5a) in dry THF (30 ml) at ambient temperature, and the mixture was then refluxed 24 hrs. The cooled mixture was treated with conc. HCl (25 ml) dropwise over 30 mins and the resulting white suspension was then heated at 90° C. for 4 hrs. After further standing 48 hrs the mixture was filtered. The white solid was washed with 6N HCl and dried, then recrystallised from ethanol to yield the title compound as the trihydrochloride (1.425 g), m.p. 233°-36° C.(d).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05177078
Source datasetuspto-grants-1993_01
ORD IDord-9e20da64c0f04275995ee904a0cf9438
Source noteuspto-grants-1993_01