ChemicalBook CAS DataBase List Imidazo[1,2-a]pyridine, 7-methoxy- (9CI)

Imidazo[1,2-a]pyridine, 7-methoxy- (9CI) synthesis

4synthesis methods

Product Name:Imidazo[1,2-a]pyridine, 7-methoxy- (9CI)
CAS Number:342613-71-2
Molecular formula:C8H8N2O
Molecular Weight:148.16

107-20-0
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$22.60/5ml

10201-73-7 Synthesis

10201-73-7
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$8.00/1g

Imidazo[1,2-a]pyridine, 7-methoxy- (9CI)

342613-71-2
49 suppliers
$139.00/250mg

Yield:342613-71-2 87%

Reaction Conditions:

with sodium hydrogencarbonate in ethanol at 78; for 4 h;

Steps:

1.1 Step 1: Preparation of 7-methoxyimidazo[1,2-a]pyridine (1a)

Add 4-methoxypyridin-2-amine (7.37g, 59.4mol) and 2-chloroacetaldehyde (11.64g, 148.6mol) into a clean flask and dissolve it with 25mL of ethanol.Add sodium bicarbonate (9.98 g, 118.9 mol). After stirring for 4 hours at room temperature of 78°C,Extract and separate with ethyl acetate and water, combine the organic phases, and dry with anhydrous sodium sulfate,After spin-drying the solvent and column chromatography (dichloromethane/methanol=30:1, V/V), a brown oily pure product was obtained, and the desired product (9.95 g, 87.0%) was obtained.

References:

CN113620943,2021,A Location in patent:Paragraph 0064-0069

98-98-6 Synthesis