THE TRIAZENE MOIETY AS A PROTECTING GROUP FOR AROMATIC-AMINES
THE TRIAZENE MOIETY AS A PROTECTING GROUP FOR AROMATIC-AMINES
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DOI：
10.1021/jo00060a028
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发表时间：
1993-04-09
影响因子：
3.6
通讯作者：
WELCH, WM
中科院分区：
文献类型：
--
作者：
GROSS, ML;BLANK, DH;WELCH, WM
(2-,(3-和(4-溴苯基)-3,3-(1,4-丁二基)三氮烯（衍生自相应的2-、3-和4-溴苯胺）与仲丁基锂或叔丁基锂反应，得到相应的(三氮烯基芳基)-锂；这些中间体与各种亲电子试剂反应，得到取代的芳基三氮烯。这些产物可以转化通过还原生成取代的苯胺或通过改进的桑德迈尔反应生成新型取代的芳族化合物。
Reaction of (2-,(3-, and (4-bromophenyl)-3,3-(1,4-butanediyl)triazenes (derived from the corresponding 2-, 3-, and 4-bromoanilines) with sec- or tert-butyllithiums gave the corresponding (triazenylaryl)-lithiums; these intermediates reacted with a variety of electrophiles to give substituted aryl triazenes. These products cound be converted to substituted anilines by reduction or to novel substituted aromatics by a modified Sandmeyer reaction.