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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1503630Generated: October 31, 2026

Ethanol → HCID 1020462, compound

https://huagongshe.com/reaction/1503630

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantEthyl bromoacetateHCID 7748—
ReactantPotassium CarbonateHCID 11430—
ReactantBenzaldehyde, 4-hydroxy-3-iodo-5-methoxy-HCID 79499—
SolventAcetoneHCID 180—
ProductHCID 1020462HCID 102046249%

Reaction Steps

The compound was prepared according to general procedure E with 5-iodovanillin (1.8 mmol) in dry acetone (25 ml), anhydrous K2CO3 (2.4 mmol), and ethylbromoacetate (2.7 mmol) at reflux for 1 h15. Ethanol was added and evaporated by azeotropic distillation with ethylbromoacetate. 673 mg of crude product were obtained and purified by silica gel chromatography (eluent dichloromethane). 320 mg of purified compound were obtained (49% yield). 1H NMR (250 MHz, CD3COCD3): δ 1.28 (t, J=7.2 Hz, 3H), 3.97 (s, 3H), 4.23 (q, J=7.2 Hz, 2H), 4.85 (s, 2H), 7.55 (s, 1H), 7.95 (s, 1H), 9.90 (s, 1H) 13C NMR (126 MHz, CD3COCD3): δ 15.2, 57.4, 62.1, 70.5, 92.4, 113.9, 135.1, 135.5, 153.1, 169.4, 191.1. MS (ESI): m/z 364.9 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09212196B2
Source datasetuspto-grants-2015_12
ORD IDord-4d206829d4fa4f65b0e8d95e5921b526
Source noteuspto-grants-2015_12