58540-90-2Relevant academic research and scientific papers
α-diazoacetates as carbene precursors: Metallosalen-catalyzed asymmetric cyclopropanation
Uchida, Tatsuya,Katsuki, Tsutomu
, p. 1715 - 1723 (2006)
Readily available α-diazo compounds have been shown to be efficient carbene precursors for asymmetric cyclopropanation using ruthenium(NO)-salen and cobalt-salen complexes, as catalysts. The stereoselectivity of the cyclopropanation depends on the metal i
Chiral bis(pyridylimino)isoindoles: A highly modular class of pincer ligands for enantioselective catalysis
Langlotz, Bjoern K.,Wadepohl, Hubert,Gade, Lutz H.
supporting information; body text, p. 4670 - 4674 (2009/02/06)
(Chemical Equation Presented) Protect your back: Chiral wedges (red, see scheme) at the wingtips of bis(2-pyridylimino) isoindole (bpi) pincer ligands with an appropriate protective hedge (green), to block the metal center from backside attack, in the backbone represent a new class of efficient 3d-metal catalysts. These catalysts gave excellent enantioselectivities in the iron-catalyzed hydrosilylation of arylketones and in the cobalt-catalyzed cyclopropanation of alkenes.
Co(II)-salen-catalyzed asymmetric intramolecular cyclopropanation
Uchida, Tatsuya,Saha, Biswajit,Katsuki, Tsutomu
, p. 2521 - 2524 (2007/10/03)
Optically active Co(II)-salen complexes (5 and 7) were found to catalyze highly enantioselective intramolecular cyclopropanation of 2-alkenyl α-diazoacetates in the presence of N-methylimidazole under high substrate concentration.
