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Nickel-catalyzed amination of aryl sulfamates and carbamates using an air-stable precatalyst.

Organic letters (2012-08-02)
Liana Hie, Stephen D Ramgren, Tehetena Mesganaw, Neil K Garg
ZUSAMMENFASSUNG

A facile nickel-catalyzed method to achieve the amination of synthetically useful aryl sulfamates and carbamates is reported. Contrary to most Ni-catalyzed amination reactions, this user-friendly approach relies on an air-stable Ni(II) precatalyst, which, when employed with a mild reducing agent, efficiently delivers aminated products in good to excellent yields. The scope of the method is broad with respect to both coupling partners and includes heterocyclic substrates.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

Sigma-Aldrich
Sulfaminsäure, ACS reagent, 99.3%
Sigma-Aldrich
Sulfaminsäure, ReagentPlus®, ≥99%
Sigma-Aldrich
Ammoniumsulfamat, ACS reagent, ≥98.0%
Sigma-Aldrich
Sulfaminsäure, reagent grade, 98%
Sigma-Aldrich
Sulfaminsäure, 99.999% trace metals basis
Sigma-Aldrich
Sulfaminsäure, ≥99.5% (alkalimetric)
Supelco
Sulfaminsäure, analytical standard (for acidimetry), ACS reagent
Sigma-Aldrich
Ammoniumsulfamat, BioXtra, ≥98.0%