Divergent Dehydrogenative Coupling of Indolines with Alcohols
作者:Xue Jiang、Weijun Tang、Dong Xue、Jianliang Xiao、Chao Wang
DOI:10.1021/acscatal.6b03667
日期:2017.3.3
The dehydrogenativecoupling of indolines with alcohols catalyzed by an iridium complex has been achieved to afford both N- and C3-alkylated indoles selectively, by simply changing the addition time of a base additive. The iridacycle catalyst plays multiple roles in these reactions, which dehydrogenates both amines and alcohols and catalyzes the coupling reactions. Mechanistic studies reveal that a
Disproportionative Condensations. IV. The 3-Alkylation of Indoles by Primary and Secondary Alcohols<sup>1</sup>
作者:Ernest F. Pratt、Laurence W. Botimer
DOI:10.1021/ja01576a049
日期:1957.10
142. Preparation of certain 3-substituted indoles
作者:Rita H. Cornforth、Robert Robinson
DOI:10.1039/jr9420000680
日期:——
Synthesis of 3,3-Spiroindolines via FeCl<sub>3</sub>-Mediated Cyclization of Aryl- or Alkene-Containing 3-Substituted N–Ac Indoles
作者:Raj Kumar Nandi、Régis Guillot、Cyrille Kouklovsky、Guillaume Vincent
DOI:10.1021/acs.orglett.6b00174
日期:2016.4.15
the cyclization of 3-substituted N-acetylindoles for the straightforward synthesis of 3,3-spiroindolines via the Friedel–Crafts reaction of an appended aryl group or the formal [2 + 2] cycloaddition of an appended alkene. Our strategy involves an Umpolung of the C2═C3 bond of the indole nucleus during FeCl3-mediatedhydroarylation or annulation reactions.