Synthesis and evaluation of new mono- and binuclear salen complexes for the Cα-alkylation reaction of amino acid substrates as chiral phase transfer catalysts
SYNTHESIS OF NEW γ-LACTONE RING DERIVATIVES CONTAINING PYRIDINE AND TRICONDENSED SYSTEMS ( СИНТЕЗ НОВЫХ ПРОИЗВОДНЫХ γ-ЛАКТОННОГО КОЛЬЦА, СОДЕРЖАЩИХ ПИРИДИНОВЫЕ И ТРИКОНДЕНСИРОВАННИЕ СИСТЕМЫ )