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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 38910Generated: October 30, 2026

Hydrochloric Acid → HCID 44251416, compound

https://huagongshe.com/reaction/38910

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthylamineHCID 6341—
Reactant[(2R)-5-fluoro-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonateHCID 86652937—
SolventAcetonitrileHCID 6342—
ProductHCID 44251416HCID 44251416—

Reaction Steps

Preparation according to Example 5 using [(2R)-5-fluoro-7-(methylsulfonyl)-2,3-dihydro-1,4-benzodioxin-2-yl]methyl 4-methylbenzenesulfonate (0.56 g, 1.33 mmol), ethanamine (1 ml, 70% in water) and ACN (3 ml). Yield: 0.32 g, 83%. The amine was converted to the hydrochloric acid salt and crystallized from MeOH/Et2O. M.p. 274° C. MS m/z (rel. intensity, 70 eV) 289 (M+, 3), 70 (3), 59 (4), 58 (bp), 56 (3). [α]=−58° (MeOH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524766B2
Source datasetuspto-grants-2013_09
ORD IDord-b1516aa20233412283400fce2135870e
Source noteuspto-grants-2013_09