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Synthesis 2011(7): 1137-1141
DOI: 10.1055/s-0030-1258456
DOI: 10.1055/s-0030-1258456
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
An Efficient Convergent Access to Spiroketal Segment of (+)-Spiroxaline Methyl Ether
Weitere Informationen
Received
15 December 2010
Publikationsdatum:
02. März 2011 (online)
Publikationsverlauf
Publikationsdatum:
02. März 2011 (online)
Abstract
Starting from trimethylsilylacetylene, a facile synthesis of optically pure spiroketal unit of (+)-spiroxaline methyl ether has been described. The synthesis entails stepwise alkylation and acylation of an alkyne with two different readily available chiral building blocks followed by the reductive in situ regio- and stereoselective spiroketalization pathway.
Key words
alkyne - (R)-oxirane - (R)-γ-valerolactone - nucleophilic reactions - (+)-spiroketal segment synthesis
- Supporting Information for this article is available online:
- Supporting Information
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