Synthesis of Farnesol Analogues Containing Triazoles in Place of Isoprenes through ‘Click Chemistry’
摘要:
A solid-phase three-component Huisgen reaction has been used to generate polar farnesol and farnesyl diphosphate analogues. The Cu(I)-catalyzed 1,3-cycloadditions of various azides with solid supported (E)-3-methylhept-2-en-6-yn-1-ol provided only the 1,4-disubstituted 1,2,3-triazole regioisomers. The organic azides were generated in situ to minimize handling of potentially explosive azides. We have employed this powerful 'click chemistry' to make farnesol analogues where both beta- and gamma-isoprenes were replaced by triazole and substituted aromatic rings, respectively.
Synthesis of Farnesol Analogues Containing Triazoles in Place of Isoprenes through ‘Click Chemistry’
摘要:
A solid-phase three-component Huisgen reaction has been used to generate polar farnesol and farnesyl diphosphate analogues. The Cu(I)-catalyzed 1,3-cycloadditions of various azides with solid supported (E)-3-methylhept-2-en-6-yn-1-ol provided only the 1,4-disubstituted 1,2,3-triazole regioisomers. The organic azides were generated in situ to minimize handling of potentially explosive azides. We have employed this powerful 'click chemistry' to make farnesol analogues where both beta- and gamma-isoprenes were replaced by triazole and substituted aromatic rings, respectively.
Palladium-Catalyzed Synthesis of 1,2,3,4-Tetrahydro-5H-2-benzazepin-5-ones
作者:Howard Alper、Kazumi Okuro
DOI:10.1055/s-0032-1317183
日期:——
Palladium-catalyzedintermolecular cyclocarbonylation of 2-iodobenzylamines with Michael acceptors produces 1,2,3,4-tetrahydro-5H-2-benzazepin-5-one derivatives in moderate to good yields. This methodology enables the direct preparation of highly functionalized 1,2,3,4-tetrahydro-5H-2-benzazepin-5-ones from readily available starting materials.