94540-42-8Relevant articles and documents
Asymmetric arylation of ketone enolates
Ahman,Wolfe,Troutman,Palucki,Buchwald
, p. 1918 - 1919 (1998)
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Enantioselective α-arylation of cyclic ketones catalyzed by a combination of an unmodified Cinchona alkaloid and a palladium complex
Richter, Christian,Ranganath, Kalluri V. S.,Glorius, Frank
supporting information; experimental part, p. 377 - 382 (2012/04/11)
A palladium/Cinchona alkaloid-catalyzed α-arylation between cyclic ketones and aryl halides under phosphine-free conditions is presented. The use of a simple, unmodified Cinchona alkaloid results in high levels of activity and selectivity with up to 93% ee. These enantioinduction levels are comparable or even higher than the ones reported using palladium/BINAP complexes. To the best of our knowledge, this represents the first use of unmodified Cinchona alkaloids as ligands/catalysts in asymmetric transition metal complex-catalyzed cross-coupling reactions. Copyright
Synthesis and reactivity of chiral pentavalent bismuth derivatives
Finet,Fedorov
, p. 1488 - 1495 (2007/10/03)
Eight new pentavalent organobismuth derivatives were synthesized by the reactions of triphenylbismuth or phenyl-2,2"-biphenylenebismuth with chiral (1R)-(-)-camphor-10-sulfonic, (-)-menthyloxyacetic, or (R)-3-phenylbutyric acids. Enantioselective C-arylat