作者:V. I. Tararov、T. F. Savel'eva、Yu. T. Struchkov、A. P. Pisarevskii、N. I. Raevskii、Yu. N. Belokon
DOI:10.1007/bf01435789
日期:1996.3
following conclusions to be drawn: (1) the thermal Kharasch reaction catalyzed by Fe(CO)5 proceeds by a redox catalysis mechanism; (2) iron (in any of its oxidation states) is not coordinated to olefins in the transition state of the reaction; (3) the transfer of the halogen atom on the radical adduct probably occurs inside a radical-iron cation pair.
将 BrCCl3 添加到 (R)-3-(E)-cinnamoyl-4-phenyloxazolidin-2-one (1) 和 (R)-3-(E)-acryloyl-4-phenyloxazolidin-2- 的区域选择性和非对映选择性研究了由 Fe(CO)5 催化或用过氧化苯甲酰引发的一 (2) 个。BrCCl3 与 a-配合物 (4R,αS,βS)-ν2-(3-(E)-cinnamoyl-4-phenyl-oxazolidin-2-one)irontetracarbonyl (3a) 和 (4R,αR) 反应的立体化学还研究了-η2-(3-丙烯酰基-4-苯基恶唑烷-2-酮)铁四羰基(4b)。得到的结果可以得出以下结论: (1) Fe(CO)5 催化的热哈拉施反应是通过氧化还原催化机理进行的;(2) 铁(以其任何氧化态)在反应的过渡态不与烯烃配位;