Iterative double cyclization reaction by S<sub>RN</sub>1 mechanism. A theoretical interpretation of the regiochemical outcome of diazaheterocycles
作者:Lucas E. Peisino、Gloria P. Camargo Solorzano、María E. Budén、A. B. Pierini
DOI:10.1039/c5ra04563k
日期:——
In this report, we present a synthetic and mechanistic study of novel iterative double cyclization intramolecular SRN1 reactions from diamides bearing two aryliodide moieties. This cyclization affords aromatic diazaheterocyclic compounds in good yields. Two synthetic strategies were employed for their preparation: intramolecular SRN1 and Homolytic Aromatic Substitution. The mechanism is non-trivial
Synthesis of Carbazoles by Intramolecular Arylation of Diarylamide Anions
作者:María E. Budén、Victoria A. Vaillard、Sandra E. Martin、Roberto A. Rossi
DOI:10.1021/jo9006249
日期:2009.6.19
The synthesis of a series of substituted 9H-carbazoles by the photostimulatedSRN1 substitution reaction with diarylamines as starting substrate was performed. The diarylamines were obtained by two approaches, the Pd-catalyzed reactions (Buchwald−Hartwig) or Cu-catalyzed reactions of 2-haloanilines with arylhalides, or 2-bromoiodobenzene with anilines, with moderate to very good isolated yields (45−89%)
Construction of 3,3'‐Bicarbazoles and Indolocarbazoles by Using Visible Light
作者:María Alexia El Ain、Marcelo Puiatti、María Eugenia Budén
DOI:10.1002/ejoc.202200642
日期:2022.9.27
The synthesis of symmetric and asymmetric 3,3‘-bicarbazoles and indolocarbazoles by intramolecular SRN1reaction from diarylamines is presented. The synthetic strategy used for the preparation of these heterocycles is a Buchwald-Hartwig arylation of anilines followed by a ring closure reaction in the presence of a base and visible light at room temperature.
介绍了由二芳基胺通过分子内 S RN 1反应合成对称和不对称的 3,3'-联咔唑和吲哚咔唑。用于制备这些杂环的合成策略是苯胺的 Buchwald-Hartwig 芳基化,然后在室温下在碱和可见光存在下进行闭环反应。