Toluene → HCID 15044873, compound

Participants

Reaction Steps

A solution of 5.60 g (0.03 mole) of the known compound 4-amino-2,6-di-t-butylphenol in 100 ml of diethyl ether was added dropwise over a period of twenty minutes to a solution of 4.44 g (0.03 mole) of phthalic anhydride in 200 ml of a 1:2 mixture of diethyl ether:toluene. The reaction mixture was stirred at room temperature for about sixteen hours. The resulting precipitate was collected, rinsed with a mixture of diethyl ether and hexane, and dried to give 6.8 g of a white solid. This material was recrystallized from a mixture of ethyl acetate and hexane to give 5.9 g of white solid 2-[N-(3,5-di-t-butyl-4-hydroxyphenyl)carbamoyl]benzoic acid, m.p. 191°-192° C. Analysis: Calculated for C22H27NO4 : %C, 71.5; %H, 7.4, %N, 3.8; Found: %C, 71.8; %H, 7.3; %N, 3.7.

Provenance & Evidence