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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 902292Generated: October 29, 2026

Sodium Azide → 2-Azidomethyl-8-(2-chloro-phenyl)-chroman

https://huagongshe.com/reaction/902292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium AzideHCID 33557—
Reactant[8-(2-chlorophenyl)-3,4-dihydro-2H-chromen-2-yl]methyl 4-methylbenzenesulfonateHCID 86609095—
SolventDimethyl SulfoxideHCID 679—
SolventDiethyl EtherHCID 3283—
Product2-Azidomethyl-8-(2-chloro-phenyl)-chromanHCID 8660909782%

Reaction Conditions

Temperature70 °C

Reaction Steps

A solution of [8-(2-chlorophenyl)-3,4-dihydro-2H-chromen-2-yl]methyl 4-methylbenzenesulfonate, prepared in Example 1, step 7 (0.25 g, 0.58 mmol) and sodium azide (0.15 g, 2.3 mmol) in anhydrous dimethyl sulfoxide (9.5 mL) was heated to 70° C. under nitrogen for 16 hours. The cooled reaction mixture was then diluted with diethyl ether (50 mL), washed with water (5×25 mL) and saturated brine (25 mL), dried over magnesium sulfate, filtered and concentrated under reduced pressure to afford 0.14 g (82%) of 2-azidomethyl-8-(2-chloro-phenyl)-chroman as a colorless oil that was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07365095B2
Source datasetuspto-grants-2008_04
ORD IDord-408ed90f443240d298654565d74be987
Source noteuspto-grants-2008_04