55568-95-1Relevant academic research and scientific papers
Enantioselective selenocyclization via dynamic kinetic resolution of seleniranium ions by hydrogen-bond donor catalysts
Zhang, Hu,Lin, Song,Jacobsen, Eric N.
, p. 16485 - 16488 (2015/01/09)
Highly enantioselective selenocyclization reactions are promoted by the combination of a new chiral squaramide catalyst, a mineral acid, and an achiral Lewis base. Mechanistic studies reveal that the enantioselectivity originates from the dynamic kinetic resolution of seleniranium ions through anion-binding catalysis.
Heterocycles. XV. Enantioselective Synthesis of Chiral Flavanonols and Flavan-3,4-diols
Takahashi, Hiroshi,Kubota, Yumiko,Miyazaki, Hiroko,Onda, Masayuki
, p. 4852 - 4857 (2007/10/02)
Chiral flavanonols and flavan-3,4-diols have been enantioselectively synthesized from the chiral epoxychalcones (-)-2a and (+)-2b, which are obtained by the asymmetric epoxidation of the chalcone 1 under phase-transfer conditions.The absolute configuratio
HETEROCYCLES. XIV. EFFICIENT STEREOCONTROLLED SYNTHESIS OF RACEMIC FLAVONOIDS
Takahashi, Hiroshi,Kubota, Yumiko,Miyazaki, Hiroko,Onda, Masayuki
, p. 1147 - 1153 (2007/10/02)
Stereocontrolled synthesis of the flavonoids (2, 4 and 5) is described.Racemic taxifolin (dihydroquercetin) (14) is synthesized by application of this method.
