Bi(OTf)<sub>3</sub>‑Mediated Cycloisomerization of γ‑Alkynyl Arylketones: Application to the Synthesis of Substituted Furans
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资源简介：
A novel Bi(OTf)3-mediated cycloisomerization of γ-alkynyl arylketones 4, 7, or 10 with molecular sieve (MS) in MeNO2 affords 3-substituted furans 3, 8, or 11 at rt for 3 h in moderate to good yields. The method provides mild, less-toxic, atom-economic and efficient conditions. The mechanism has been studied and proposed. Moreover, this route can be enlarged to gram scale.
创建时间：
2016-02-14
