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Mannich cyclization molecular rearrangements

Perhaps the best illustration of the utility of tandem aza-Cope rearrangement-Mannich cyclization reactions for assembling complex molecular skeletons is found in the total synthesis of the Aspidosperma alkaloid ( )-16-methoxytabersonine (Scheme 56).115 The crucial step in this synthesis was the high-yielding conversion of aniline (156) to 16-methoxy-l,2,6,7-tetradehydroaspidospermidine (157), a trans-... [Pg.1043]

See other pages where Mannich cyclization molecular rearrangements is mentioned: [Pg.641] [Pg.652] [Pg.1007] [Pg.1040] [Pg.1007] [Pg.1040] [Pg.28] [Pg.1040] [Pg.1191] [Pg.1191]

See also in sourсe #XX -- [ Pg.2 ]

See also in sourсe #XX -- [ Pg.1040 ]

See also in sourсe #XX -- [ Pg.1040 ]

See also in sourсe #XX -- [ Pg.1040 ]

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Mannich cyclization

Molecular rearrangements