Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France.
J Org Chem. 2016 May 20;81(10):4371-7. doi: 10.1021/acs.joc.6b00473. Epub 2016 Apr 28.
The first umpolung addition/intramolecular Wittig reaction, catalytic in phosphine, is described. The in situ phosphine oxide reduction was accomplished by the use of silane and a catalytic amount of bis(4-nitrophenyl)phosphate. This catalytic protocol is applicable to the synthesis of a wide range of functionalized 9H-pyrrolo[1,2-a]indoles and pyrrolizines (18 examples, 70-98% yields).
首例磷催化的反转加成/分子内维蒂希反应被描述。原位氧化膦还原通过使用硅烷和催化量的双(4-硝基苯基)磷酸酯完成。此催化方案适用于广泛的功能化 9H-吡咯并[1,2-a]吲哚和吡咯嗪的合成(18 个实例,70-98%的产率)。