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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 425253Generated: October 26, 2026

Benzaldehyde → Ethyl 2-(2-furanyl)-6-methyl-4-phenyl-1,4-dihydropyrimidine-5-carboxylate

https://huagongshe.com/reaction/425253

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantMethyl acetoacetateHCID 7757—
ReactantEthyl AcetoacetateHCID 8868—
Reactant2-Chloro-4-fluorobenzaldehydeHCID 145024—
ReactantThiophene-2-carboximidamide HydrochlorideHCID 2781759—
ReactantFuran-2-carboximidamide hydrochlorideHCID 12231049—
ProductEthyl 2-(2-furanyl)-6-methyl-4-phenyl-1,4-dihydropyrimidine-5-carboxylateHCID 2500055832%

Reaction Steps

According to the process of Example 1, except that the 2-thienylformamidine hydrochloride, 2-chloro-4-fluorobenzaldehyde and methyl acetoacetate were replaced by 2-furylformamidine hydrochloride, benzaldehyde and ethyl acetoacetate, respectively, and 0.21 g of a pale yellow particulates were obtained (yield: 32%); 1H-NMR (400 MHz, CDCl3-d1) δ 7.45 (s, 1H, ArH); 7.39-7.37 (d, 2H, J=7.2 Hz, ArH); 7.30-7.21 (m, 3H, J=7.2 Hz, ArH); 7.09 (s, 1H, ArH); 6.50 (m, 1H, ArH), 5.71 (s, 1H, CH); 4.12-4.09 (q, 2H, J=7.2 Hz, CH2); 2.45 (s, 3H, CH3): 1.21-1.17 (t, 3H, J=7.2 Hz, CH3). MS (EI) 310.2 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08106196B2
Source datasetuspto-grants-2012_01
ORD IDord-72222aaec69a43b79604855e115eb6f2
Source noteuspto-grants-2012_01