Rossana Taras

Functionalized carbo- and heterocycles via Pt-catalyzed asymmetric alkoxycyclization of 1,6-enynesElectronic Supplementary Information (ESI) available: General procedure for the asymmetric hydroxycyclization, optical rotation of 2a?d and 3b?c. The syntheses of esters derived from 2b and the determination of absolute configuration are disclosed. See http://www.rsc.org/suppdata/cc/b4/b400908h/

This paper describes the asymmetric version of highly atom-economical alkoxycyclization of 1,6-enynes, using a combination of silver salts with the Pt(II)/(R)-Ph-BINEPINE system.

Binaphthalene-templated N,S- and N,P-heterobidentate ligands with an achiral oxazoline pendant: Synthesis and assessment in asymmetric catalysis

Novel chiral binaphthalene-core ligands where an oxazoline pendant is flanked by a sulfur 6, or by an atropisomeric phosphite donor 5, have been synthesized using the hydroxy binaphthyl oxazoline 7 as the common starting material. This intermediate is obtained in high e.e. by Ni-catalyzed asymmetric heterocoupling of two suitably 1,2-disubstituted naphthalene derivatives. Ligands 5 and 6 feature a stereogenic axis as the unique source of chirality. They display chelate binding towards Rh(I) centres affording cationic complexes which have been inspected for their catalytic activity in several asymmetric reactions with modest success. The Pd catalyst derived from the sulfur-containing oxazoline 6a provides up to 66% e.e. in the allylic alkylation of 1,3-diphenylallyl esters with dimethyl malonate.