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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 730375Generated: October 28, 2026

Sodium hydride → Methyl 3-cyano-4-isopropoxybenzoate

https://huagongshe.com/reaction/730375

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant(2-Bromoethoxy)-tert-butyldimethylsilaneHCID 3608067—
ReactantMethyl 3-cyano-4-hydroxybenzoateHCID 11769089—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductMethyl 3-cyano-4-isopropoxybenzoateHCID 2195680584.2%

Reaction Steps

To a suspension of NaH (0.39 g, 9.3 mmol) in DMF (15 mL) was added a solution of 3 (1.9 g, 6.5 mmol) in DMF (10 mL) at 0° C. under nitrogen. The reaction was stirred for 1.5 h, and then (2-bromoethoxy)-tert-butyldimethylsilane (2.09 mL, 9.7 mmol) was added. The reaction mixture was stirred overnight, diluted with EtOAc, quenched with aqueous ammonium chloride solution, and extracted with EtOAc (3×50 mL). The organic layers were combined and dried over Na2SO4. Purification with over silica gel (EtOAc) gave the product 4 (1.2 g, 41%) as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582668B2
Source datasetuspto-grants-2009_09
ORD IDord-cb781a7c490b47e48429f890eb19f6c0
Source noteuspto-grants-2009_09