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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1177108Generated: November 2, 2026

Benzyl Bromide → HCID 59559917, compound

https://huagongshe.com/reaction/1177108

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 4-hydroxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-6-carboxylateHCID 25067323—
SolventDimethylformamideHCID 6228—
ProductHCID 59559917HCID 5955991798%

Reaction Steps

4-Hydroxy-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester (3e) was dissolved in DMF (50 mL). K2CO3 (6.48 g, 46.9 mmol) and benzyl bromide (2.80 mL, 23.6 mmol) were added. The reaction mixture was stirred at room temperature overnight, quenched with H2O (150 mL), and extracted with EtOAc (2×150 mL). The organic layers were dried over MgSO4 and concentrated to give a white solid (7.18 g, 98% yield) which was used as it is for the next step. 1H NMR (400 MHz, CDCl3) δ 7.34-7.46 (m, 5 H) 7.21 (s, 1 H) 7.08 (s, 1 H) 5.13 (s, 2 H) 3.90 (s, 3 H) 3.02 (s, 2 H) 1.49 (s, 6 H); LCMS for C19H20O4 m/z 313.20 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842713B2
Source datasetuspto-grants-2010_11
ORD IDord-8987801e10424c14974996eeab07eb82
Source noteuspto-grants-2010_11