Salicylamide → HCID 776579, compound
Reaction equation
[C:1]([NH2:10])(=[O:9])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)[OH:4].[CH3:11][O:12][C:13]1[CH:21]=[CH:20][C:16]([C:17](Cl)=O)=[CH:15][CH:14]=1>C(O)(C)C>[CH3:11][O:12][C:13]1[CH:21]=[CH:20][C:16]([C:17]2[O:4][C:3]3[CH:5]=[CH:6][CH:7]=[CH:8][C:2]=3[C:1](=[O:9])[N:10]=2)=[CH:15][CH:14]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
6.85 g (50 mmol) of salicylic acid amide are added, dropwise, to 18.1 g of p-methoxybenzoyl chloride and the mixture is heated to 150° C. The mixture is then stirred for 30 minutes at this temperature. After cooling, the honey-like mass is stirred with 100 ml of isopropanol, the precipitated solid filtered off and dried to yield 10.2 g of 2-(4-methoxyphenyl)-4H-1,3-benzoxazin-4-one as a white solid melting at 175-178° C. and having the following elemental analysis: