Mostra el registre complet de l'element
Sanz Marco, Amparo; Blay Llinares, Gonzalo; Muñoz, M. Carmen; Pedro, José Ramón | |||
Aquest document és un/a article, creat/da en: 2015 | |||
|
|||
The conjugate diynylation of a,b-unsaturated trifluoromethyl ketones is carried out in the presence of a low catalytic load (2.5 mol%) of a copper(I)-MeOBIPHEP complex, triethylamine and a terminal 1,3-diyne. Pre-metalation of the terminal 1,3-diyne with stoichiometric or higher amounts of dialkylzinc reagent is not required. The corresponding internal diynes bearing a propargylic stereogenic center are obtained with good yields and excellent enantioselectivities. | |||
Veure al catàleg Trobes | |||