期刊
ORGANIC LETTERS
卷 14, 期 11, 页码 2718-2721出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol300927n
关键词
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资金
- National Natural Science Foundation of China [20872127, 20732005, J0830431]
- National Basic Research Program of China (973 Program) [2009CB825300]
- CAS Academician Foundation of Zhejiang Province
- Fundamental Research Funds for the Central Universities
A novel PdCl2-catalyzed oxidative cycloisomerization of 3-cyclopropylideneprop-2-en-1-ones, providing a facile synthesis of highly strained functionalized 2-alkylidenecyclobutanones via furan-fused cyclobutene intermediates, is reported. An interesting route to 2(3H)-furanones with a spiro-cyclopropane unit from the obtained 2-alkylidenecyclobutanones via a ring-contraction rearrangement reaction is also realized.
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