696643-13-7Relevant academic research and scientific papers
Fine-tuning monophosphine ligands for enhanced enantioselectivity. Influence of chiral hemilabile pendant groups
Zhang, Aibin,RajanBabu
, p. 1515 - 1517 (2004)
C2-Symmetric P-(2-X-aryl)-2,5-dialkylphospholanes (X = dioxolan-2-yl or dioxan-2-yl), designed on the basis of a working model for asymmetric induction, are effective ligands for the Ni(II)-catalyzed asymmetric hydrovinylation of styrenes. Excellent yields (>99%), selectivities for the desired 3-arylbutenes (>99%), high S/C ratios (>1200), and ee's (up to 91%) have been realized for a number of prototypical vinylarenes. In the dioxolane series, the selectivity depends on the configuration of the C 4 and C5 carbons.
Highly diastereoselective conjugate addition of aryllithium to chiral β-nitrostyrene derivative: An application to the asymmetric synthesis of 4-aryl-1,2,3,4-tetrahydroisoquinoline
Asami, Masatoshi,Taketoshi, Ayako,Miyoshi, Keita,Hoshino, Hayato,Sakakibara, Kazuhisa
, p. 64 - 65 (2007/10/03)
Highly diastereoselective conjugate addition of aryllithium to β-nitrostyrene derivative, having chiral acetal moiety derived from (S,S)-1,2-bis(1-hydroxypropyl)benzene, was achieved. The adduct was transformed to 4-aryl-1,2,3,4-tetrahydroisoquinoline in
