Pedroni J, Saget T, Donets P A, Cramer N
Laboratory of Asymmetric Catalysis and Synthesis , Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSA, BCH 4305 , CH-1015 Lausanne , Switzerland . Email:
Chem Sci. 2015 Sep 1;6(9):5164-5171. doi: 10.1039/c5sc01909e. Epub 2015 Jun 17.
Taddol-based phosphoramidite ligands enable enantioselective palladium(0)-catalyzed C-H arylation of cyclopropanes. The cyclized products are obtained in high yields and enantioselectivities. The reported method provides efficient access to a broad range of synthetically attractive cyclopropyl containing dihydroquinolones and dihydroisoquinolones as well as allows for an efficient enantioselective construction of the 7-membered ring of the cyclopropyl indolobenzazepine core of BMS-791325.
基于Taddol的亚磷酰胺配体能够实现对映选择性钯(0)催化的环丙烷C-H芳基化反应。环化产物能够以高收率和对映选择性得到。所报道的方法为一系列具有合成吸引力的含环丙基二氢喹诺酮和二氢异喹啉酮提供了有效途径,同时也实现了BMS-791325中环丙基吲哚并苯并氮杂卓核心七元环的高效对映选择性构建。