作者: Cheng-Kui Pei , Yu Jiang , Min Shi
DOI: 10.1039/C2OB25475A
关键词: Molecule 、 Cycloaddition 、 Stereoisomerism 、 Optically active 、 Chemistry 、 Dihydropyran 、 Catalysis 、 Organic chemistry
摘要: β-Isocupreidine (β-ICD) catalyzed asymmetric [4 + 2] cycloaddition of β,γ-unsaturated α-ketoesters with allenic esters afforded ester-substituted functionalized dihydropyran derivatives in high yields along enantioselectivities under mild conditions.