Binap-silver salts as chiral catalysts for the enantioselective 1, 3-dipolar cycloaddition of azomethine ylides and alkenes

J Mancebo-Aracil, M Martín-Rodríguez, C Nájera…

Index: Mancebo-Aracil, Juan; Martin-Rodriguez, Maria; Najera, Carmen; Sansano, Jose M.; Costa, Paulo R.R.; De Lima, Evanoel Crizanto; Dias, Ayres G. Tetrahedron Asymmetry, 2012 , vol. 23, # 22-23 p. 1596 - 1606

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Citation Number: 18

Abstract

Binap-AgSbF6 catalyzed 1, 3-dipolar cycloadditions between azomethine ylides and electrophilic alkenes are described and compared with analogous transformations mediated by other Binap-silver (I) salt complexes. Maleimides and 1, 2-bis (phenylsulfonyl) ethylene are suitable dipolarophiles for obtaining very good enantioselectivities, even better values are generated by a multicomponent version. There are some very interesting applications ...