Synthesis of indolin-2-ones (oxindoles) related to mitomycin A
作者:Ralph A. Raphael、Paul Ravenscroft
DOI:10.1039/p19880001823
日期:——
Oxindoles (Indolin-2-ones) containing the functionality of the first two rings of the mitomycin A structure have been synthesized. Attempts to employ the oxindole grouping to construct the third ring were unsuccessful because of the resistance of the oxindole group or its derivatives towards nucleophilic attack. An unusual methylation of 3-methyl-5-nitrobenzene-1,2,4-triol to give the (E)-3,6-dihydroxy-2-methyl-1
Preparation of Complexes Bearing N‐Alkylated, Anionic or Protic CAACs Through Oxidative Addition of 2‐Halogenoindole Derivatives
作者:Sebastian Termühlen、Jonas Blumenberg、Alexander Hepp、Constantin G. Daniliuc、F. Ekkehardt Hahn
DOI:10.1002/anie.202010988
日期:2021.2
[Pt(PPh3)4] to give cis‐[4]BF4. The neutral indole derivative 1 adds oxidatively to [Pt(PPh3)4] to give trans‐[5] featuring a CAAC ligand with an unsubstituted ring‐nitrogen atom. This nitrogen atom has been protonated with py⋅HBF4 to give trans‐[6]BF4 bearing a protic CAAC ligand. The PdII complex trans‐[7]BF4 bearing a protic CAAC ligand was obtained in a one‐pot reaction from 1 and [Pd(PPh3)4] in