HCID 1211386, compound → Pyrido(2,3-b)(1,5)benzoxazepin-5(6H)-one
Reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]([C:11]1[C:12](Cl)=[N:13][CH:14]=[CH:15][CH:16]=1)=[O:10].C[O-].[Na+]>CN(C)C=O>[N:13]1[C:12]2[O:1][C:2]3[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=3[NH:8][C:9](=[O:10])[C:11]=2[CH:16]=[CH:15][CH:14]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 13.0 g of N-(2-hydroxyphenyl)-2-chloro-3-pyridinecarboxamide and 2.82 g of sodium methoxide in 100 ml of N,N-dimethylformamide is refluxed under argon for 3 hours. Sodium methoxide (0.50 g) is added and the mixture refluxed 2 hours and then stirred at room temperature for 2 days. The solvent is removed under high vacuum and the red-brown residue triturated with cold methanol. The mixture is filtered and the solid washed with chilled methanol to give 5.0 g of white solid, m.p. 250°-253° C.