ChemicalBook CAS DataBase List 5-Methoxy-2-nitrobenzaldehyde

5-Methoxy-2-nitrobenzaldehyde synthesis

14synthesis methods

Product Name:5-Methoxy-2-nitrobenzaldehyde
CAS Number:20357-24-8
Molecular formula:C8H7NO4
Molecular Weight:181.15

42454-06-8
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74-88-4
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20357-24-8
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Yield: 100%

Reaction Conditions:

with potassium carbonate in DMF (N,N-dimethyl-formamide) at 20; for 16 h;

Steps:

A; 1.1 EXAMPLE 1; Synthesis of (4-{2-[(4-bromophenyl)amino]quinazolin-6-yloxy}-(2-pyridyl))-N-methylcarboxamide; Step 1. Synthesis of 5-methoxy-2-nitrobenzaldehyde 2:
Step 1. Synthesis of 5-methoxy-2-nitrobenzaldehyde 2: A mixture containing 5-hydroxy-2-nitrobenzaldehyde (1 eq) in DMF with iodomethane (1.1eq) and potassium carbonate (1eq) was stirred at room temperature for 16 hours. The resulting mixture was concentrated and partitioned between ethyl acetate and water. The organic layer was washed with brine and dried and concentrated to afford 5-methoxy-2-nitrobenzaldehyde in quantitative yield. MS: MH+=182.

References:

Chiron Corporation US2005/85482, 2005, A1 Location in patent:Page/Page column 13; 17

879-55-0 Synthesis