Reactions of 1,2-Propadienyl Sulfides with Aldehydes and Acetals Catalyzed by BF<sub>3</sub>·OEt<sub>2</sub>
作者:Koichi Narasaka、Takanori Shibata、Yujiro Hayashi
DOI:10.1246/bcsj.65.2825
日期:1992.10
Ene reaction proceeds between 1-alkyl-1,2-propadienyl sulfides and aldehydes in the presence of BF3·OEt2 to afford 1,3-dienes possessing an alkylthio group. On the other hand, the reactions of 1-silyl-1,2-propadienyl sulfides with aldehydes or their dimethylacetals give aldol-type addition products, α-methylene acylsilanes.
在
BF3·OEt2存在下,1-烷基-1,2-
丙二烯基
硫化物与醛发生
烯反应,得到具有烷
硫基的1,3-二
烯。另一方面,1-甲
硅烷基-1,2-
丙二烯基
硫化物与醛或其二
甲基缩醛的反
应得到羟醛型加成产物,α-亚
甲基酰基
硅烷。