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  • Stereospecific and highly stereoselective cyclopropanation reactions promoted by samarium.

Stereospecific and highly stereoselective cyclopropanation reactions promoted by samarium.

Chemical Society reviews (2010-08-05)
José M Concellón, Humberto Rodríguez-Solla, Carmen Concellón, Vicente del Amo
ABSTRACT

Samarium metal and samarium diiodide have become important tools as selective cyclopropanating agents in organic synthesis due to their high chemo- and stereoselectivity. Therefore, Sm and SmI(2) are the ideal reagents to prepare cyclopropane derivatives. This tutorial review highlights C-C multiple bond cyclopropanation processes promoted by samarium or samarium diiodide.

MATERIALS
Product Number
Brand
Product Description

Samarium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%
Samarium, rod, 100mm, diameter 6.35mm, cast, 99%
Samarium, rod, 50mm, diameter 6.35mm, cast, 99%
Samarium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%
Samarium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
Sigma-Aldrich
Samarium, −40 mesh, 99% trace rare earth metals basis