cheminform abstract: nonstereospecific 1,3-dipolar cycloadditions of azomethine ylides and enamines

1999 cycloaddition reactions cycloaddition reactions O 0070 48 - 050 Nonstereospeciﬁc 1,3-Dipolar Cycloadditions of Azomethine Ylides and Enamines. — 1,3-Dipolar cycloaddition reaction of azomethine ylides (I) and (V) with electron-rich (E)-enamines (II) proceeds in a non-stereospeciﬁc manner, which is explained by a two-step mechanism via zwitterionic interme- diates. — (BOEHM, THOMAS; WEBER, ANDREAS; SAUER, JUERGEN; Tetrahedron 55 (1999) 31, 9535-9558; Inst. Org. Chem., Univ. Regensburg, D-93053 Regensburg, Germany; EN) 1

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Page 1: ChemInform Abstract: Nonstereospecific 1,3-Dipolar Cycloadditions of Azomethine Ylides and Enamines

1999 cycloaddition reactions

cycloaddition reactionsO 0070

48 - 050Nonstereospecific 1,3-Dipolar Cycloadditions of Azomethine Ylidesand Enamines. — 1,3-Dipolar cycloaddition reaction of azomethine ylides(I) and (V) with electron-rich (E)-enamines (II) proceeds in a non-stereospecificmanner, which is explained by a two-step mechanism via zwitterionic interme-diates. — (BOEHM, THOMAS; WEBER, ANDREAS; SAUER, JUERGEN;Tetrahedron 55 (1999) 31, 9535-9558; Inst. Org. Chem., Univ. Regensburg,D-93053 Regensburg, Germany; EN)

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