Amine N-oxides derived from alkaloids as chiral promoters in enantioselective Pauson-Khand reactions

被引:0
|
作者
Derdau, V
Laschat, S
Jones, PG
机构
[1] Tech Univ Braunschweig, Inst Organ Chem, D-38106 Braunschweig, Germany
[2] Tech Univ Braunschweig, Inst Anorgan & Analyt Chem, D-38106 Braunschweig, Germany
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中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The novel indolizino[3,4-b]quinoline N-oxide (12) was prepared and characterized by X-Ray crystal structure determination. Compound (12) and sparteine N-oxides (8-10) were employed as chiral promoters in the Pauson-Khand cocyclization of various alkynes (1) with norbornene (4) to the bicyclic cyclopentenones (6) with enantioselectivities up to 33 %ee.
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页码:1445 / 1453
页数:9
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