Asymmetric Catalysis Special Feature Part I: Helically chiral polymers: A class of ligands for asymmetric catalysis

Architectural and functional engineering of chiral molecular catalysts Asymmetric Catalysis Special Feature Part I: Toward efficient asymmetric hydrogenation:

www.pnas.org/cgi/content/full/101/15/5356#otherarticles This article has been cited by other articles: E-mail Alerts . click here at the top right corner of the article or Receive free email alerts when new articles cite this article sign up in the box Subspecialty Collections www.pnas.org/cgi/collection/asymm_catalysis Asymmetric Catalysis Special Feature collection(s): This article, along wit...

Ion-paired chiral ligands for asymmetric palladium catalysis.

Conventional chiral ligands rely on the use of a covalently constructed, single chiral molecule embedded with coordinative functional groups. Here, we report a new strategy for the design of a chiral ligand for asymmetric transition-metal catalysis; our approach is based on the development of an achiral cationic ammonium-phosphine hybrid ligand paired with a chiral binaphtholate anion. This ion...

Chiral olefin ligands-new "spectators" in asymmetric catalysis.

Chiral allene-containing phosphines in asymmetric catalysis.

We demonstrate that allenes, chiral 1,2-dienes, appended with basic functionality can serve as ligands for transition metals. We describe an allene-containing bisphosphine that, when coordinated to Rh(I), promotes the asymmetric addition of arylboronic acids to α-keto esters with high enantioselectivity. Solution and solid-state structural analysis reveals that one olefin of the allene can coor...

Asymmetric Catalysis.

H ighlighting this issue of PNAS and the forthcoming one* is a Special Feature comprising 8 Perspectives and 44 research articles that cover aspects of asymmetric catalysis, the phenomenon whereby a chiral catalyst promotes the conversion of an achiral substrate to a chiral product with a preference for the formation of one of the mirror image isomers (enantiomers). The demand for chiral compou...