1,3-Dipolar cycloadditions of nonstabilised azomethine ylides at 3-substituted coumarins: synthesis of 1-benzopyrano[3,4-c]pyrrolidines / V. S. Moshkin, V. Ya. Sosnovskikh, P. A. Slepukhin, Gerd-Volker Röschenthalerc // Mendeleev Communications. - 2012. - Vol.22, №1. - С. 29-31 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): COUMARINS -- AZOMETHINE YLIDES -- PYRROLIDINES Аннотация: Reaction of 3-substituted coumarins with N-alkyl-α-amino acids and aldehydes proceeds regio- and stereoselectively to give 1-benzopyrano[3,4-c]pyrrolidines as a result of 1,3-dipolar cycloaddition of the intermediate azomethine ylides at the Δ3-bond of the coumarins \\\\Expert2\\nbo\\Mendeleev Communications\\2012, v.22, p. 29.pdf |