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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2052370Generated: October 31, 2026

Ethyl 2-pyridinecarboxylate → HCID 14508407, compound

https://huagongshe.com/reaction/2052370

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 2-pyridinecarboxylateHCID 17307—
ReactantSodium hydrideHCID 24758—
Reactant3-(4-Bromophenyl)-2-methyl-3,4-dihydroquinazolin-4-oneHCID 63377—
ReactantPotassium BromideHCID 253877—
SolventTetrahydrofuranHCID 8028—
ProductHCID 14508407HCID 14508407—

Reaction Steps

Treatment of 3.15 g (10 mmol) of 2-methyl-3-p-bromophenyl-4(3H)-quinazolinone and 1.81 g (12 mmol) of ethyl picolinate with 1.92 g (40 mmol) of sodium hydride (50%) in 160 ml of THF for a reaction period of 2.5 hours resulted in a yellow-brown reaction slurry which was processed using Method B. The crude yellow product was recrystallized from dimethyl sulfoxide-acetone to yield 4.06 g (96%) of yellow microcrystals, mp 312°-313° (dec): 1H NMR (CDCl3 with 3 drops CF3CO2H) δ 8.96-7.11 (m, 12H, aromatic) and 5.50 ppm (s, 1H, vinyl); ir (KBr) 1685 cm-1C=O).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04183931
Source datasetuspto-grants-1980_01
ORD IDord-5c7cac69e9ca41f99e5eecea842e4885
Source noteuspto-grants-1980_01