4-Nitrobenzaldehyde → 6-(2-Imidazole-1-yl-ethoxy)-2-(4-nitro-benzylidene)-3,4-dihydro-2H-naphthalen-1-one

HRID 368303Notes

Reaction equation

HRID 368303 reaction equation
[N:1]1([CH2:6][CH2:7][O:8][C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[CH2:14][CH2:13][CH2:12]3)[CH:5]=[CH:4][N:3]=[CH:2]1.[N+:20]([C:23]1[CH:30]=[CH:29][C:26]([CH:27]=O)=[CH:25][CH:24]=1)([O-:22])=[O:21]>[OH-].[K+].C(O)C>[N:1]1([CH2:6][CH2:7][O:8][C:9]2[CH:10]=[C:11]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[C:14](=[CH:27][C:26]2[CH:29]=[CH:30][C:23]([N+:20]([O-:22])=[O:21])=[CH:24][CH:25]=2)[CH2:13][CH2:12]3)[CH:5]=[CH:4][N:3]=[CH:2]1

Participants

5

Reactant 2

HCID 5414-NitrobenzaldehydeHCID 154869126-(2-Imidazole-1-yl-ethoxy)-3,4-dihydro-2H-naphthalen-1-one

Product 1

HCID 544051546-(2-Imidazole-1-yl-ethoxy)-2-(4-nitro-benzylidene)-3,4-dihydro-2H-naphthalen-1-oneYield 68%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 14797Potassium HydroxideSolvent

Procedure

According to the method of Example 4, 6-(2-imidazole-1-yl-ethoxy)-3,4-dihydro-2H-naphthalen-1-one (0.19 g, 0.74 mmol) was reacted with 4-nitrobenzaldehyde (0.112 g, 0.74 mmol) in 1.5 mL of 4% KOH in ethanol for 3 hours at room temperature to afford 0.195 g (68%) of the title compound as a fine tan powder, mp 184-185° C.: CI-MS m/e 389 (M+), 390 (M+ +1);

Sources & evidence

ORD record
ord-43c6c268a4aa44358dc18a7fe65771ed
Source dataset
uspto-grants-2000_10
Patent number
US06133303

Reaction notes

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