1-Isocyanato-4-methoxybenzene → HCID 86753485, compound

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Reaction Steps

A solution of 5-amino-2-n-butyl-3-(3,5-diiodo-4-ethylcarboxymethoxybenzoyl)-benzofuran (prepared as in Example 1(g), 320 mg, 0.5 mmol) and p-methoxyphenylisocyanate (75 mg, 0.5 mmol) in THF (10 mL) was stirred at room temperature for 3 h. The mixture was concentrated, ethyacetate was added and the organic layer was washed with water, 1M HCl, then NaHCO3 (sat) then brine, dried using MgSO2 and then concentrated. Purification by column chromathography on silica with a 95:5 mixture of methylenechloride--methanol as eluant produced 300 mg (75%) of 2-n-butyl-3-(3,5-diiodo-4-ethyl carboxymethoxybenzoyl)-5-(4-methoxyphenylureido)benzofuran.

Provenance & Evidence