Synthesis of new furocoumarin analogues via cross-coupling reaction of triflate
摘要:
Furocoumarins such as psoralen or angelicin showed important biological activities. We present here the synthesis of new furocoumarin analogues via Suzuki or Sonogashira cross-coupling reaction of triflate. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of new furocoumarin analogues via cross-coupling reaction of triflate
摘要:
Furocoumarins such as psoralen or angelicin showed important biological activities. We present here the synthesis of new furocoumarin analogues via Suzuki or Sonogashira cross-coupling reaction of triflate. (C) 2002 Elsevier Science Ltd. All rights reserved.
Formation of Chiral Allylic Ethers via an Enantioselective Palladium-Catalyzed Alkenylation of Acyclic Enol Ethers
作者:Harshkumar H. Patel、Matthew B. Prater、Scott O. Squire、Matthew S. Sigman
DOI:10.1021/jacs.8b02751
日期:2018.5.9
palladium-catalyzed process to access highly functionalized, optically active allylic aryl ethers. A number of electron-deficient alkenyl triflates underwent enantioselective and site-selective coupling with acyclic aryl enol ethers in the presence of a chiral palladium catalyst. This transform provides chiral allylicether products in high yields and excellent enantiomeric ratios, furnishing a unique
Palladium‐Catalyzed Enantioselective Alkenylation of Enelactams Using a Relay Heck Strategy
作者:Qianjia Yuan、Matthew S. Sigman
DOI:10.1002/chem.201902813
日期:2019.8.14
In this report, a palladium-catalyzed redox-relay Heck process to access optically active alkenylated α,β-unsaturated lactams is described. Under mildreaction conditions, electron-deficient alkenyl triflates and electron-rich alkenyliodoniumsalts undergo enantioselective and site-selective coupling with enelactams to deliver the products in high yields and excellent enantioselectivities. Furthermore