[EN] SYNTHESIS AND USE OF FLUORINATED COMPOUNDS<br/>[FR] SYNTHÈSE ET UTILISATION DE COMPOSÉS FLUORÉS
申请人:UNIV PENNSYLVANIA
公开号:WO2014126990A1
公开(公告)日:2014-08-21
The invention is directed to the preparation of fluorinated compounds and their use in organic synthesis. In particular, the invention is directed to methods of reacting compounds of structure with Rf-CH=N2 or (CF3)2C=N2 to form a perfluoroalkylate or -arylated compounds, and products derived from these reactions, where X, YB, and Rf are described herein.
Single-Electron Transmetalation: Synthesis of 1,1-Diaryl-2,2,2-trifluoroethanes by Photoredox/Nickel Dual Catalytic Cross-Coupling
作者:DaWeon Ryu、David N. Primer、John C. Tellis、Gary A. Molander
DOI:10.1002/chem.201504079
日期:2016.1.4
method for the cross‐coupling of benzylic α‐trifluoromethylated alkylboron reagents with (hetero)aryl bromides is achieved through application of a photoredox/nickel dual catalytic system. The harsh conditions and high temperatures required by conventional Suzuki‐coupling protocols are avoided by exploitation of an odd‐electron pathway that permits roomtemperature transmetalation of these recalcitrant
Catalytic Friedel-Crafts Reactions of Highly Electronically Deactivated Benzylic Alcohols
作者:Vuk D. Vuković、Edward Richmond、Eléna Wolf、Joseph Moran
DOI:10.1002/anie.201612573
日期:2017.3.6
Highly electronically deactivated benzylic alcohols, including those with a CF3 group adjacent to the OH‐bearing carbon, undergo dehydrative Friedel–Crafts reactions upon exposure to catalytic Brønsted acid in 1,1,1,3,3,3‐hexafluoro‐2‐propanol (HFIP) solvent. Titration and kinetic experiments support the involvement of higher order solvent/acid clusters in catalysis.
申请人:THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
公开号:US20160002270A1
公开(公告)日:2016-01-07
The invention is directed to the preparation of fluorinated compounds and their use in organic synthesis. In particular, the invention is directed to methods of reacting compounds of structure with R
f
—CH═N
2
or (CF
3
)
2
C═N
2
to form a perfluoroalkylate or -arylated compounds, and products derived from these reactions, where X, Y
B
, and R
f
are described herein.