Hydroaminations of unactivated alkenes with basic alkylamines: group 4 metal halide catalysts and Brønsted-acid organocatalysts.

Hydroaminations of unactivated alkenes with basic alkylamines: group 4 metal halide catalysts and Brønsted-acid organocatalysts.

Organic & biomolecular chemistry (2007-06-07)

Lutz Ackermann, Ludwig T Kaspar, Andreas Althammer

RESUMEN

Two distinct economical catalysts for intramolecular hydroaminations of electronically unactivated alkenes with basic amines are described, which are based on (a) group 4 metal halides under basic reaction conditions or (b) Brønsted-acid organocatalysts.

MATERIALES

Referencia del producto

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Descripción del producto

221880

Sigma-Aldrich

Zirconium(IV) chloride, ≥99.5% trace metals basis

258202

Sigma-Aldrich

Hafnium(IV) chloride, 98%

647640

Sigma-Aldrich

Zirconium(IV) chloride, anhydrous, powder, 99.99% trace metals basis

357405

Sigma-Aldrich

Zirconium(IV) chloride, ≥99.9% trace metals basis

590592

Sigma-Aldrich

Hafnium(IV) chloride, purified by sublimation, 99.9% trace metals basis