A Novel Sc(OTf)3-Catalyzed Prop-2-ynylation and Penta-2,4-diynylation of Soft Nucleophiles
作者:Mitsuhiro Yoshimatsu、Masako Kuribayashi、Tomoko Koike
DOI:10.1055/s-2001-18099
日期:——
The prop-2-ynylation and penta-2,4-diynylation of soft nucleophiles catalyzed by Sc(OTf)3 from prop-2-ynal diethyl acetals 1 a-e, and penta-2,4-diynal diethyl acetals 1 g-i gave the alkylated and arylated products 2 a-i, 3 g, 4 g, h, 6 a-c in good to high yields.
Sc(OTf)3 催化软亲核试剂从丙-2-炔醛二乙缩醛 1 a-e 和五-2,4-二炔醛二乙缩醛 1 g-i 进行丙-2-炔基化和五-2,4-二炔化,得到烷基化和芳基化产物2a-i、3g、4g、h、6a-c,收率良好至高。