Cu(I)-Catalyzed Enantioselective [3 + 2] Cycloaddition Reaction of 1-Alkylallenylsilane with α-Imino Ester: Asymmetric Synthesis of Dehydroproline Derivatives
作者:Kazunori Daidouji、Kohei Fuchibe、Takahiko Akiyama
DOI:10.1021/ol047343c
日期:2005.3.1
[reaction: see text] The catalytic, enantioselective [3 + 2] cycloaddition reaction of 1-alkyl-substituted allenylsilanes with alpha-imino ester has been achieved by means of [Cu(MeCN)(4)]BF(4)/(R)-DM-SEGPHOS catalyst to afford silyl-substituted dehydroproline derivatives in high yields and enantioselectivities.
[反应:参见正文]通过[Cu(MeCN)(4)] BF(4)/()实现了1-烷基取代的烯丙基硅烷与α-亚氨基酯的催化,对映选择性[3 + 2]环加成反应。 R)-DM-SEGPHOS催化剂以高产率和对映选择性提供甲硅烷基取代的脱氢脯氨酸衍生物。