科研之友
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摘要
Tertiary propargyl vinyl ethers armed with an electron-withdrawing group (amide or ester) at the tertiary propargylic position have been efficiently transformed Into trisubstituted C-2-chain functionalized furans. The metal-free domino transformation Involves a microwave-assisted tandem [3,3]propargyl Claisen rearrangement/5-exo-dig O-cyclization reaction. The manifold can be performed In a one-pot fashion from the primary components (1,2-ketoester/1,2-ketoamide or tertiary propargyl alcohols).
- 出版日期2011-8-19
