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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20057Generated: October 29, 2026

Triphenylphosphine → (4S)-6-bromo-2-methyl-2-(trifluoromethyl)chroman-4-amine

https://huagongshe.com/reaction/20057

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
Reactant(4S)-4-azido-6-bromo-2-methyl-2-(trifluoromethyl)chromanHCID 86614139—
SolventWaterHCID 962—
Product(4S)-6-bromo-2-methyl-2-(trifluoromethyl)chroman-4-amineHCID 67305954—

Reaction Steps

To a solution of (4S)-4-azido-6-bromo-2-methyl-2-(trifluoromethyl)chroman (190 mg, 565 μmol) was added triphenylphosphine (222 mg, 848 μmol). The mixture was stirred at RT for 4 h. Water (15 ml) was added and the reaction was heated at refluxing for 24 h. The resulted mixture was concentrated to dryness and extracted with CHCl3. The organic layer was dried over anhydrous Na2SO4, filtered, concentrated and dried in vacuum to afford the title compound. MS m/z: 293, 295(M−NH2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745484B2
Source datasetuspto-grants-2010_06
ORD IDord-049fc0c682a2499bb5ec62fcbcf58964
Source noteuspto-grants-2010_06