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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
ABSTRACT

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.

MATERIALI
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Marchio
Descrizione del prodotto

Sigma-Aldrich
Acido sulfamico, ACS reagent, 99.3%
Sigma-Aldrich
Acido sulfamico, ReagentPlus®, ≥99%
Sigma-Aldrich
Ammonium sulfamate, ACS reagent, ≥98.0%
Sigma-Aldrich
Acido sulfamico, reagent grade, 98%
Sigma-Aldrich
Acido sulfamico, 99.999% trace metals basis
Supelco
Acido sulfamico, analytical standard (for acidimetry), ACS reagent