Ruthenium-catalysed C-alkylation of 1,3-dicarbonyl compounds with primary alcohols and synthesis of 3-keto-quinolines
作者:Elena Cini、Elena Petricci、Giuseppina I. Truglio、Marialaura Vecchio、Maurizio Taddei
DOI:10.1039/c6ra03585j
日期:——
mono-alkylation of 1,3-diketones using alcohols is possible in the presence of catalytic amounts of Ru(CO)(PPh3)3HCl and 10% mol of the Hantzsch ester. The borrowinghydrogenprocess between the catalyst and the dihydropyridine/pyridine couple prevents the common double alkylation of the Knoevenagel adduct without the need of stoichiometric reducing agents or sacrificial nucleophiles. The reaction was applied to