Synthese substituierter 1,2,3-Benzotriazin-4(3<i>H</i>)-on-<i>N</i>
<sup>2</sup>-oxide und heteroanellierter 1,2,3-Triazin-4(3<i>H</i>)-on-<i>N</i>
<sup>2</sup>-oxide
作者:Alfred Mitschker、Karlfried Wedemeyer
DOI:10.1055/s-1988-27622
日期:——
The Synthesis of Substituted 1,2,3-Benzotriazin-4(3H)-one N 2-Oxides and Heteroannulated 1,2,3-Triazin-4(3H)-one ,N 2-oxides Under certain nitration conditions, o-amino aromatic nitriles can be ring closed to the 1,2,3-benzotriazin-4(3H)-one N 2-oxides via intermediate nitramines. o-Amino heteroaromatic nitriles give the corresponding heteroannulated 1,2,3-triazin-4 (3H)-one N2-oxides. The scope of this new ring-closure reaction is discussed.