Title of article
Novel Ring Contraction of 6-Azauracil Derivatives
Author/Authors
Hanna Wojtowicz-Rajchel، نويسنده , , Joanna Szczepkowska-Sztolcman، نويسنده , , Andrzej Katrusiak، نويسنده , , Krzysztof Golankiewicz، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
6
From page
5909
To page
5914
Abstract
Derivatives of 6-azauracil were lithiated at −100°C with and without an electrophilic agent. Reactions of appropriate 6-azauracils with t-butyllithium and lithium diisopropylamide gave, as a result of a ring contraction, compounds 5 and 6. The structure of compound 5 was undeniably established by X-ray analysis. A mechanism of the novel ring transformation of 1,2,4-triazines to imidazoles is discussed.
Keywords
metallation , 4-triazines , 2 , 1 , Ring contraction
Journal title
Tetrahedron
Serial Year
2000
Journal title
Tetrahedron
Record number
1081088
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