Title of article
A reinvestigation of the reactions of 3-substituted chromones with hydroxylamine. Unexpected synthesis of 3-amino-4H-chromeno[3,4-d]isoxazol-4-one and 3-(diaminomethylene)chroman-2,4-dione
Author/Authors
Sosnovskikh، نويسنده , , Vyacheslav Ya. and Moshkin، نويسنده , , Vladimir S. and Kodess، نويسنده , , Mikhail I.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2008
Pages
4
From page
6856
To page
6859
Abstract
Reactions of 3-substituted chromones (3-formylchromone, 3-formylchromone-3-oxime, and 3-cyanochromone) with hydroxylamine in alkaline medium were reinvestigated, and a proof of structures and a probable reaction pathway are presented. Syntheses of 2-aminochromone-3-carboxamide, 3-amino-4H-chromeno[3,4-d]isoxazol-4-one, and 3-(diaminomethylene)chroman-2,4-dione were developed.
Keywords
hydroxylamine , 3-(Diaminomethylene)chroman-2 , 2-Aminochromone-3-carboxamide , 4-d]isoxazol-4-one , 3-Substituted chromones , 4-dione
Journal title
Tetrahedron Letters
Serial Year
2008
Journal title
Tetrahedron Letters
Record number
1861717
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