Boron-substituted difluorocyclopropanes: new building blocks of gem-difluorocyclopropanes.
Boron-substituted difluorocyclopropanes: new building blocks of gem-difluorocyclopropanes.
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DOI:
10.1021/ol702851t
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发表时间:
2008-01
期刊:
影响因子:
5.2
通讯作者:
Yasutaka Fujioka;H. Amii
中科院分区:
文献类型:
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作者:
Yasutaka Fujioka;H. Amii
Cycloaddition of difluorocarbene to alkenyl boronates 3 gave boron-substituted gem-difluorocyclopropanes 2 in stereospecific fashion. Upon treatment with lithium carbenoids, cyclopropyl boronates 2 underwent one-carbon homologation to afford a variety of gem-difluorocyclopropanes in good yields.