Asymmetric [4+2] cycloaddition of azlactones with dipolar copper–allenylidene intermediates for chiral 3,4-dhydroquinolin-2-one derivatives - Sun, Bing-Bing; Hu, Qing-Xian; Hu, Jia-Ming; Yu, Jie-Qiang; Jia, Jun; Wang, Xing-Wang (Tetrahedron letters, 2019)
Keywords: 3,4-Dihydroquinolin-2-ones; Asymmetric cycloaddition; catalytic activity; chemical structure; Chemistry; Chemistry, Organic; cycloaddition reactions; diastereoselectivity; Dipolar copper–allenylidene; enantioselectivity; Enolate azlactones; organic compounds; Physical Sciences; Science & Technology; Asymmetric cycloaddition; Dipolar copper–allenylidene; Enolate azlactones; 3,4-Dihydroquinolin-2-ones; TRANSITION-METAL CATALYSIS; ANNULATION; MUNCHNONES; YLIDES; QUINOLINONES; 1,3-DIPOLAR CYCLOADDITION; CONSTRUCTION; DIVERSITY; Dipolar copper-allenylidene; ACCESS; DEAROMATIZATION