Asymmetric synthesis of Sedum alkaloids via lithium amide conjugate addition
摘要:
Conjugate addition of lithium ()--allyl--(α-methylbenzyl)amide or lithium ()--but-3-enyl--(α-methylbenzyl)amide to an alkyl hexa-2,4-dienoate or alkyl hepta-2,6-dienoate, followed by ring-closing metathesis of the olefin functionalities within the resultant β-amino ester, generates a range of diastereoisomerically pure azacycles in good yield. These homochiral templates are readily transformed to a range of piperidine alkaloids of the Graphical abstract
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DOI:
10.1016/j.tet.2009.09.104
被引量:
年份:
2009
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来源期刊
Tetrahedron
2009
引用走势
2011
被引量:30
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