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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 71055Generated: October 30, 2026

Formamide → 4,5-Bis(4-methoxyphenyl)-1,3-oxazole-2-carboxamide

https://huagongshe.com/reaction/71055

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
ReactantSodium MethoxideHCID 10942334—
ReactantEthyl 4,5-bis(4-methoxyphenyl)-1,3-oxazole-2-carboxylateHCID 69712984—
Product4,5-Bis(4-methoxyphenyl)-1,3-oxazole-2-carboxamideHCID 6981792571.9%

Reaction Steps

In WO2004/065374 is disclosed a method in which ethyl 4,5-bis(4-methoxyphenyl)-1,3-oxazole-2-carboxylate, which is a carboxylic acid ester, is allowed to react with formamide in the presence of sodium methoxide, which is a metal alkoxide, to give 4,5-bis(4-methoxyphenyl)-1,3-oxazole-2-carboxamide, which is a carboxamide, in a yield of 71.9% (see Example 2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822724B2
Source datasetuspto-grants-2014_09
ORD IDord-4d806f3c603144478d89c72646072c98
Source noteuspto-grants-2014_09