Water → methyl-4-[(2-butyl-5-formyl-4-iodo-1H-imidazol-1-yl)methyl]naphthalene-1-carboxylate

HRID 2081872Notes

Reaction equation

C(=O)([O-])[O-].[K+].[K+].[CH2:7]([C:11]1[NH:12][C:13]([CH:17]=[O:18])=[C:14]([I:16])[N:15]=1)[CH2:8][CH2:9][CH3:10].Br[CH2:20][C:21]1[C:30]2[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=2)[C:24]([C:31]([O:33][CH3:34])=[O:32])=[CH:23][CH:22]=1.O>CN(C)C=O>[CH3:34][O:33][C:31]([C:24]1[C:25]2[C:30](=[CH:29][CH:28]=[CH:27][CH:26]=2)[C:21]([CH2:20][N:12]2[C:13]([CH:17]=[O:18])=[C:14]([I:16])[N:15]=[C:11]2[CH2:7][CH2:8][CH2:9][CH3:10])=[CH:22][CH:23]=1)=[O:32]

Participants

Conditions

Temperature: 70 °C

Procedure

A suspension of 29.53 g (0.214 mol) of powdered potassium carbonate, 60.00 g (0.214 mol) of 2-butyl-4-iodoimidazole-5-carboxaldehyde and 65.68 g (0.235 mol) of methyl 4-bromomethylnaphthalene-1-carboxylate (E. A. Dixon, A. Fischer, and F. P. Robinson, Can. J. Chem. 59, 2629 (1981)) in 600 mL of dimethylformamide was stirred for 5 hours under argon at 70° C. An additional 6.56 g (0.0235 mol) of the bromomethyl ester was added and the suspension was stirred an additional 15 hours at 70° C. The reaction mixture was poured into water and the resulting solid was collected by filtration, washed with water, and triturated several times with 250 mL of boiling methanol to give 86.8 g (85%) of a solid; mp 177.5°-179° C.

Workup

filtrationthe resulting solid was collected by filtration
washwashed with water
customtriturated several times with 250 mL of boiling methanol

Sources & evidence

ORD record: ord-ad302fa673694430be9f95b736cf1b84
Source dataset: uspto-grants-1993_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05185351

Reaction notes

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